capacitors

High-performance planar Zn-ion micro-capacitors

J. Mater. Chem. A, 2024, Advance Article
DOI: 10.1039/D4TA00300D, Paper
Open Access
Yujia Fan, Xiaopeng Liu, Nibagani Naresh, Yijia Zhu, Iman Pinnock, Tianlei Wang, Mingqing Wang, Ivan P. Parkin, Buddha Deka Boruah
Proposing a planar zinc-ion micro-capacitor, featuring battery type anode and supercapacitor type cathode to offer intermediate energy storage performance, boasting greater energy density than typical supercapacitors, superior power density compared to batteries, and minimal self-discharge rates.
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capacitors

The Role of Mn in Boosting Wide Potential Window on Solid Solution Derived Electrodes for Aqueous Supercapacitors

J. Mater. Chem. A, 2024, Accepted Manuscript
DOI: 10.1039/D4TA00979G, Paper
Ziying Shi, Enzuo Liu, Biao Chen, Junwei Sha, Lihua Qian, Zhijia Zhang, Xiaopeng Han, Wenbin Hu, Chunnian He, Naiqin Zhao, Jianli Kang
The interaction mechanism of the multi-element oxide electrodes remains a challenge, despite the fact that their synergy can not only improve the electronic structure, but also broaden the working potential...
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capacitors

Super Capacitors – Different Than Others (part 1)

Capacitors store electric charge. Because the charge is stored physically, with no chemical or phase changes taking place, the process is highly reversible and the discharge-charge cycle can be repeated over and over again, virtually without limit. Electrochemical capacitors (ECs) variously... Read more

The post Super Capacitors – Different Than Others (part 1) appeared first on EEP - Electrical Engineering Portal.




capacitors

Super Capacitors – Different Than Others (part 2)

Continued from first part: Super Capacitors – Different Then Others (part 1) Equivalent circuit How to measure the capacitance? Charge Method Discharge Method Measure Capacitance Capacitor types Advantages of the supercapacitors Super capacitors can be illustrated similarly to conventional film,... Read more

The post Super Capacitors – Different Than Others (part 2) appeared first on EEP - Electrical Engineering Portal.




capacitors

Sense line and decoupling capacitors

Hello,

A mybe silly question came to my mind: When routing sense lines, is it better to hav them as close as possible to DUT or afer the decoupling capacitors ?

Force in red, sense in purple.

Best way is 1 or 2 ?

Thanks in advance and Merry Christmas to everybody !




capacitors

Scalable complete conversion of MgCo2O4 by mechanochemistry for high-performance supercapacitors

Inorg. Chem. Front., 2024, 11,7886-7897
DOI: 10.1039/D4QI02020K, Research Article
Zhiyuan Liu, Qixuan Xiang, Hao Zhang, Xianglong Zhang, Huijun Tan, Yaping Zhao
Complete conversion of MgCo2O4 with excellent electrochemical performance has been successfully achieved.
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capacitors

Scalable slot-die coated flexible supercapacitors from upcycled PET face shields

RSC Adv., 2024, 14,12781-12795
DOI: 10.1039/D2RA06809E, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Kiran Kumar Reddy Reddygunta, Andrew Callander, Lidija Šiller, Karen Faulds, Leonard Berlouis, Aruna Ivaturi
This study reports fabrication of flexible supercapacitor with slot-die coated activated carbon electrodes derived from upcycled PET face shield, displaying excellent energy and power density of 21.8 W h kg−1 and 20 600 W kg−1 with good flexibility.
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capacitors

1D hollow tubular/2D nanosheet hybrid dimensional porous carbon prepared by one-step carbonization using natural minerals as templates for supercapacitors

RSC Adv., 2024, 14,13190-13199
DOI: 10.1039/D4RA01873G, Paper
Open Access
Fangfang Liu, Chao Zhang, Weiwei Huang, Lei Chen, Yuanshuang Wang, Jinan Niu, Xiuyun Chuan
1D hollow tubular/2D nanosheet hybrid dimensional porous carbon was synthesized through one-step carbonization using 1D fibrous brucite and 2D layered magnesium carbonate hydroxide as templates.
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capacitors

Constructing self-healing flexible supercapacitors via graphene oxide synergistic multi-network polymer-supramolecular hydrogel electrolyte

Polym. Chem., 2024, Accepted Manuscript
DOI: 10.1039/D4PY00809J, Paper
Xiaoyan Li, Xiuting Shi, Anbai Li, Mengmeng Xun, Shuzhen Cui, Kanjun Sun, Hui Peng, Guofu Ma, Yuxi Xu
Hydrogels are increasing interest and have great potential as electrolytes for flexible supercapacitors (FSCs) in wearable and portable electronic devices. However, the hydrogel electrolytes for practical applications are hampered by...
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capacitors

Self-Healing in Dielectric Capacitors: a Universal Method to Computationally Rate Newly Introduced Energy Storage Designs

Phys. Chem. Chem. Phys., 2024, Accepted Manuscript
DOI: 10.1039/D4CP03988B, Paper
Nadezhda Andreeva, Vitaly V. Chaban
Metalized-film dielectric capacitors provide lump portions of energy on demand. While the capacities of various capacitor designs are comparable in magnitude, their stabilities make a difference. Dielectric breakdowns – micro-discharges...
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capacitors

A composite of pineapple leaf-derived porous carbon integrated with ZnCo-MOF for high-performance supercapacitors

Phys. Chem. Chem. Phys., 2024, Advance Article
DOI: 10.1039/D4CP02882A, Paper
Xiaoxiao Ma, Yunfan Bai, Shuangli Chen, Zhixian He, Pingping Wu, Yabing Qi, Sijing Zhang
Pineapple leaf-derived biochar (PLB) served as a carrier for ZnCo-MOF in the preparation of ZnCo-MOF@PLB-800. The porous structure of PLB reduced ZnCo-MOF aggregation, enhancing electron transfer and the conductivity of the electrode material.
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capacitors

A robust dual-network hydrogel electrolyte coupled with a porous carbon material for flexible quasi-solid-state zinc ion hybrid supercapacitors

New J. Chem., 2024, Advance Article
DOI: 10.1039/D4NJ00310A, Paper
Chenchen Ji, Xinhong Lin, Yang Hong, Junfeng Liu, Aoteng Liu, Yijia Yao, Sicheng Liu, Hongyu Mi
A hydrogel electrolyte was designed by constructing a multi-crosslinked network. The quasi-solid-state ZHSC based on the hydrogel electrolyte and HSSPC delivers a high specific capacity, high energy/power densities, and good cycle stability.
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capacitors

Utilization of lead-based saturated adsorbents for the fabrication of battery-like hybrid asymmetric supercapacitors

Environ. Sci.: Nano, 2024, 11,1654-1670
DOI: 10.1039/D3EN00601H, Paper
Sourav Acharya, Shrabani De, Ayon Ganguly, Brijesh K. Mishra, Ganesh Chandra Nayak
In this study S-doped graphitic CN/ZIF-8 composite was fabricated to remove Pb from water which was anchored through heat treatment. This formed a composite of carbon, Zn-NCN, PbO and PbS and was used as supercapacitor anode.
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capacitors

Advanced MnOx/MnWO4 hetero-nanoflakes with abundant oxygen vacancies for high-performance flexible asymmetric supercapacitors with high energy density

CrystEngComm, 2024, 26,2087-2095
DOI: 10.1039/D4CE00052H, Paper
Yanli Yin, Jingli Wang, Sihao Chen, Nengneng Han, Zhiliang Chen, Yuezhou Jing, Yahui Zhang, Juan Xu, Zhongyang Li
High-performance flexible supercapacitors assembled with MnOx/MnWO4@C-3 hetero-nanoflake anodes, exhibiting a maximum areal energy density of 48.49 mW h cm−2.
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capacitors

MnOx embedded in 3D foam-like polymers composite for high-performance flexible supercapacitors

Mater. Chem. Front., 2024, Accepted Manuscript
DOI: 10.1039/D4QM00609G, Research Article
Xiaojuan Shen, Shouyan Sun, Pengwei Liu, Manlin Wei
High-performance flexible supercapacitors (SCs) strongly require a scaffold with a large specific surface area, high conductivity, and exceptional flexibility. The in situ growth of current collectors and/or active materials on...
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capacitors

Theoretical Insights and Design of MXene for Aqueous Batteries and Supercapacitors: Status, Challenges, and Perspectives

Nanoscale Horiz., 2024, Accepted Manuscript
DOI: 10.1039/D4NH00305E, Review Article
Jun Zhao, Ninggui Ma, Tairan Wang, Yuhang Wang, Bochun Liang, Yaqin Zhang, Shuang Luo, Yu Xiong, Qianqian Wang, Jun Fan
Aqueous batteries and supercapacitors are promising electrochemical energy storage systems (EESS) due to their low cost, environmental friendliness, and high safety. However, aqueous EESS development faces challenges like narrow electrochemical...
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capacitors

Review of electro-spun carbon nanofiber electrode materials for electrochemical capacitors

J. Mater. Chem. A, 2024, Advance Article
DOI: 10.1039/D4TA06221C, Review Article
Yutian Peng, Xingyu Zhang, Ruiling Sun, Xunlong Zhang, Can Ge, Yuqing Liu
Schematic illustration demonstrating various approaches to enhance the electrochemical performance of carbon nanofiber electrode materials.
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capacitors

A π–d conjugated metal–organic framework decorated on a MXene-carbon nanofiber as a self-standing electrode for flexible supercapacitors

J. Mater. Chem. A, 2024, Advance Article
DOI: 10.1039/D4TA06232A, Paper
Zahir Abbas, Shaikh M. Mobin
A c-MOF is grown on MX-CNF, which was prepared via electrospining method. Furthermore, it utilized for flexible supercapcitors with different flexibility angles.
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capacitors

Lightweight flexible self-powered photo-supercapacitors with good stability through photoelectrochemical deposition of tellurium on PPy–V2O5 films as a new visible light active dual photoelectrode

J. Mater. Chem. C, 2024, Advance Article
DOI: 10.1039/D4TC03090G, Paper
Mohamad Mohsen Momeni, Hossein Mohammadzadeh Aydisheh, Byeong-Kyu Lee, Ali Naderi
Lightweight flexible solid-state photosupercapacitors (FSSPC) with two identical Te@PPy–V2O5 photoelectrodes showed good performance and maintained functionality under different bending angles. They also demonstrated stability from −10 °C to 50 °C.
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capacitors

Current development, optimisation strategies and future perspectives for lead-free dielectric ceramics in high field and high energy density capacitors

Chem. Soc. Rev., 2024, 53,10761-10790
DOI: 10.1039/D4CS00536H, Review Article
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Hareem Zubairi, Zhilun Lu, Yubo Zhu, Ian M. Reaney, Ge Wang
This review highlights the remarkable advancements and future trends in bulk ceramics, MLCCs and ceramic thin films for lead-free high field and high energy density capacitors.
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capacitors

High-performance, high energy density symmetric supercapacitors based on δ-MnO2 nanoflower electrodes incorporated with an ion-conducting polymer

RSC Adv., 2024, 14,35657-35670
DOI: 10.1039/D4RA05670A, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Shrishti Sharma, Gurpreet Kaur, Bhargab Sharma, Buddu Nagasiva Saiteja, Anshuman Dalvi
The present work investigates liquid-based and liquid-free supercapacitors assembled using δ-MnO2-nanoflower-based electrodes.
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capacitors

Triple-shelled Ni@MnO/C hollow spheres with enhanced performance for rechargeable zinc-ion capacitors

Dalton Trans., 2024, Advance Article
DOI: 10.1039/D4DT02303J, Paper
Tao Xiang, Zaiting Qu, Daohong Zhang, Chenglong Hu, Zhen Chen, Qiufan Wang
Ni/MnO@C nanospheres with different core–shell structures are obtained by using Ni3Mn-MOFs as templates, exhibiting excellent electrochemical properties as cathodes in zinc-ion storage.
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capacitors

Recent Advances in Syntheses and Emerging Applications of 2D Borophene based Nanomaterials with a Focus on Supercapacitors

Dalton Trans., 2024, Accepted Manuscript
DOI: 10.1039/D4DT02573C, Frontier
Prashanta Pal, Mahasweta Nandi
Two dimensional (2D) nanosheet of boron i.e. borophene, triggered interest in progressive research as a result of the vast field of opportunities to explore, from its innovative synthetic techniques to...
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capacitors

Harnessing enhanced lithium-ion storage in self-assembled organic nanowires for batteries and metal-ion supercapacitors

Energy Environ. Sci., 2024, 17,8874-8884
DOI: 10.1039/D4EE02777A, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Ievgen Obraztsov, Rostislav Langer, Jean G. A. Ruthes, Volker Presser, Michal Otyepka, Radek Zbořil, Aristides Bakandritsos
Mesoscale engineering of small organic molecules towards a 3D nanowire network offers a potent toolkit for improved energy storage performance.
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capacitors

Physical Modeling of Supercapacitors and Lithium-Ion Capacitors

Learn how researchers are exploring new hybrid devices that can exploit features of both supercapacitors and lithium-ion batteries.




capacitors

New Yorker Electronics Introduces New Line of Film Capacitors for PCB Board Mounting

New ASC Capacitors MEC-DL Line Designed for DC Links, Connecting Rectifiers and Inverters




capacitors

Power converter and method for balancing voltages across input capacitors

A power converter and a method for balancing voltages across input capacitors are disclosed in the present application. The power converter includes: two DC input terminals; a first input capacitor and a second input capacitor; a first bridge arm and a second bridge arm connected in series with one another; and an output circuit configured to generate a signal required by the power converter based on the signals at a midpoint of the first bridge arm and a midpoint of the second bridge arm. The power converter further includes: a first voltage balancing unit and a second balancing unit configured to reduce a voltage difference between the first input capacitor and the second input capacitor. The power converter provided by the present application solves the problem of imbalance in the voltages across the first input voltage and the second input voltage.




capacitors

Power factor correction capacitors

An apparatus includes a case capable of receiving a plurality of capacitive elements, each capacitor element having at least two capacitors, and each capacitor having a capacitive value. The apparatus also includes a cover assembly with a peripheral edge secured to the case. The cover assembly includes, for each of the plurality of capacitive elements, a cover terminal that extends upwardly from the cover assembly generally at a central region of the cover assembly. Each cover terminal is connected to one of the at least two capacitors of the respective one of the plurality of capacitive elements. The cover assembly also includes, for each of the plurality of capacitive elements, a cover terminal that extends upwardly from the cover assembly at a position spaced apart from the cover terminal generally at the central region of the cover assembly.




capacitors

Apparatus, system and methods for enabling linearity improvement in voltage controlled variable capacitors

An embodiment of the present invention provides an apparatus, comprising at least one anti-parallel pair VVC network comprised of two parallel VVCs with one biased in the opposite polarity of the other and at least one anti-series VVC network comprised of two VVCs configured in series, one biased in the opposite polarity of the other such that the resulting AC capacitive variations produce a desired capacitance variation.




capacitors

Mechanically controlled variable capacitors for impedance tuners

An improved grounding technique for mechanically adjustable rotary capacitors uses a directly grounded bronze sliding contact to effectively and continuously ground the rotating comb-like blades of the capacitor. RF measurements of the continuity and repeatability of the capacitance settings prove the suitability of the modified capacitors for using in pre-calibrated multi-capacitor MHz range impedance tuners.




capacitors

Air gap security beaten by turning PC capacitors into speakers

Researchers have poked another small hole in air gapped security by showing how the electronics inside computer power supply units (PSUs) can be turned into covert data transmission devices.




capacitors

[ASAP] Comparison of Nanoarchitecture to Porous Media Diffusion Models in Reduced Graphene Oxide/Aramid Nanofiber Electrodes for Supercapacitors

ACS Nano
DOI: 10.1021/acsnano.9b07116




capacitors

Synthetic method, growth mechanism and electrochemical properties of PbSnS2 nanosheets for supercapacitors

Chem. Commun., 2020, 56,5062-5065
DOI: 10.1039/D0CC01011A, Communication
Yuhan Zeng, Hehe Huang, Shenhu Huang, Tongtong Jiang, Zekai Fang, Lin Li, Yuming Dai
Facile hydrothermally synthesized PbSnS2 nanosheets with various morphologies were developed to obtain high performance electrode materials for supercapacitors.
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capacitors

N-doped 3D Hierarchical Carbon from Resorcinol–formaldehyde–melamine Resin for High-Performance Supercapacitors

New J. Chem., 2020, Accepted Manuscript
DOI: 10.1039/C9NJ06415J, Paper
Xuehua Song, Qibin Chen, Enhui Shen, Honglai Liu
N-doped hierarchical porous carbons (HPCs) with tailored pore structures were fabricated via simultaneously foaming and carbonizing resorcinol-formaldehyde-melamine resin under a hypersaline condition using ZnCl2 salt. The obtained carbon aerogels possessed...
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capacitors

Oligoaniline-functionalized polysiloxane/Prussian blue composite towards bifunctional electrochromic supercapacitors

New J. Chem., 2020, Advance Article
DOI: 10.1039/D0NJ00736F, Paper
Yanyan Wang, Xiaoteng Jia, Meihua Zhu, Xincai Liu, Danming Chao
We report the preparation of a novel oligoaniline-functionalized polysiloxane/Prussian blue composite, which exhibits improved electrochromic properties and approving supercapacitor performance featuring charge storage indicating functionalization.
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capacitors

Facile functionalization of boron nitride (BN) for the development of high-performance asymmetric supercapacitors

New J. Chem., 2020, Advance Article
DOI: 10.1039/C9NJ06284J, Paper
Chandan Kumar Maity, Sumanta Sahoo, Kartikey Verma, Ajaya Kumar Behera, Ganesh Chandra Nayak
Ternary composites based on functionalized BN, a carbonaceous material, and PANI are developed for real-time asymmetric supercapacitor application.
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capacitors

Nanostructured materials for next-generation energy storage and conversion: advanced battery and supercapacitors / Qiang Zhen, Sajid Bashir, Jingbo Louise Liu, editors

Online Resource




capacitors

Correction: Two-dimensional porous nickel oxalate thin sheets constructed by ultrathin nanosheets as electrode materials for high-performance aqueous supercapacitors

CrystEngComm, 2020, Advance Article
DOI: 10.1039/D0CE90057E, Correction
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Chenglan Zhao, Yuqian Jiang, Shunfei Liang, Fang Gao, Li Xie, Lingyun Chen
To cite this article before page numbers are assigned, use the DOI form of citation above.
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capacitors

Two-dimensional porous nickel oxalate thin sheets constructed by ultrathin nanosheets as electrode materials for high-performance aqueous supercapacitors

CrystEngComm, 2020, 22,2953-2963
DOI: 10.1039/D0CE00268B, Paper
Chenglan Zhao, Yuqian Jiang, Shunfei Liang, Fang Gao, Li Xie, Lingyun Chen
2D porous nickel oxalate thin sheets constructed by ultrathin nanosheets were first synthesized by using a simple hydrothermal method. The resulting porous thin sheets exhibited superior supercapacitor performance.
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capacitors

Synergy of PVP and ethanol to synthesize Ni3S4 quantum dots for high-performance asymmetric supercapacitors

Mater. Chem. Front., 2020, Accepted Manuscript
DOI: 10.1039/D0QM00201A, Research Article
Jinfeng Zheng, Xiao Lian, Mingzai Wu, Fangcai Zheng, Yuan hao Gao, Helin Niu
Ni3S4 quantum dots (QDs) have great potential for supercapacitors due to their unique quantum effects, high specific surface area, high water solubility and good stability, but the current preparation process...
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capacitors

Vanadium nitride for aqueous supercapacitors: a topic review

J. Mater. Chem. A, 2020, 8,8218-8233
DOI: 10.1039/D0TA01490G, Review Article
Ying Liu, Qianghong Wu, Lingyang Liu, Pantrangi Manasa, Long Kang, Fen Ran
Supercapacitors have emerged as the most attractive complementary devices between batteries and conventional capacitors, while a high performance electrode material is key to their energy storage advancement.
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capacitors

Phosphate ion and oxygen defect-modulated nickel cobaltite nanowires: a bifunctional cathode for flexible hybrid supercapacitors and microbial fuel cells

J. Mater. Chem. A, 2020, 8,8722-8730
DOI: 10.1039/D0TA01423K, Paper
Wenda Qiu, Quanhua Zhou, Hongbing Xiao, Chun Zhou, Wenting He, Yu Li, Xihong Lu
The exploration of efficient and cost-effective cathodes for flexible hybrid supercapacitors (HSCs) and microbial fuel cells (MFCs) is highly desirable but challenging.
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capacitors

Oriented bacteriorhodopsin/polyaniline hybrid bio-nanofilms as photo-assisted electrodes for high performance supercapacitors

J. Mater. Chem. A, 2020, 8,8268-8272
DOI: 10.1039/D0TA02815K, Communication
Haijuan Li, Minmin Wang, Guohua Qi, Yong Xia, Chuanping Li, Ping Wang, Mordechai Sheves, Yongdong Jin
Bacteriorhodopsin was used to improve the capacitive performance of PANI supercapacitors by its proton pumping and photoelectric function.
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capacitors

Smart Porous Wood Supported Flower-like NiS/Ni Conjuction with Vitrimer Co-effect as Multifunctional Material with Reshaping, Shape-memory and Self-healing for High-Performance Supercapacitors, Catalysts and Sensors

J. Mater. Chem. A, 2020, Accepted Manuscript
DOI: 10.1039/D0TA03664A, Paper
Chuanyin Xiong, Bingbing Li, Heguang Liu, Wei Zhao, Chao Duan, Haiwei Wu, Yong Ni
Wood-based materials are attracting more and more attention for applications in energy storage, due to their environment friendly and numerous channels structure. However, the poor conductivity and flexibility of wood...
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capacitors

Two-dimensional β-MoO3@C nanosheets as high-performance negative materials for supercapacitors with excellent cycling stability

RSC Adv., 2020, 10,17497-17505
DOI: 10.1039/D0RA01258K, Paper
Open Access
Xuexia Liu, Ying Wu, Huiwen Wang, Yinfeng Wang, Chunfang Huang, Limin Liu, Zhijun Wang
MoO3 has gained a great deal of attention as a promising electrode material in energy storage devices.
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capacitors

Europium oxide nanorod-reduced graphene oxide nanocomposites towards supercapacitors

RSC Adv., 2020, 10,17543-17551
DOI: 10.1039/C9RA11012G, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Parisa Aryanrad, Hamid Reza Naderi, Elmira Kohan, Mohammad Reza Ganjali, Masoud Baghernejad, Amin Shiralizadeh Dezfuli
Fast charge/discharge cycles are necessary for supercapacitors applied in vehicles including, buses, cars and elevators.
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capacitors

Preparation of phosphorus-doped porous carbon for high performance supercapacitors by one-step carbonization

RSC Adv., 2020, 10,17768-17776
DOI: 10.1039/D0RA02398A, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Guanfeng Lin, Qiong Wang, Xuan Yang, Zhenghan Cai, Yongzhi Xiong, Biao Huang
P-doped porous carbon can be prepared by one-step carbonization using biomass sawdust impregnated with a small amount of phosphoric acid.
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capacitors

Design and fabrication of multi-dimensional RF MEMS variable capacitors




capacitors

High voltage conversion for MEMS applications using micromachined capacitors




capacitors

Salinity (conductivity) sensor based on parallel plate capacitors