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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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A redetermination of the crystal structure of the mannitol complex NH4[Mo2O5(C6H11O6)]·H2O: hydrogen-bonding scheme and Hirshfeld surface analysis

The redetermined structure [for the previous study, see: Godfrey & Waters (1975). Cryst. Struct. Commun. 4, 5–8] of ammonium μ-oxido-μ-[1,5,6-tri­hydroxy­hexane-2,3,4-tris­(olato)]bis­[dioxidomolybdenum(V)] monohydrate, NH4[Mo2(C6H11O6)O5]·H2O, was obtained from an attempt to prepare a glutamic acid complex from the [Co2Mo10H4O38]6− anion. Subsequent study indicated the complex arose from a substantial impurity of mannitol in the glutamic acid sample used. All hydrogen atoms have been located in the present study and the packing displays N—H⋯O, O—H⋯O and C—H⋯O hydrogen bonds. A Hirshfeld surface analysis was also performed.




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Lilac flower-shaped ZnCo2O4 electrocatalyst for efficient methanol oxidation and oxygen reduction reactions in an alkaline medium

CrystEngComm, 2020, 22,2849-2858
DOI: 10.1039/D0CE00024H, Paper
T. V. M. Sreekanth, P. C. Nagajyothi, K. C. Devarayapalli, J. Shim, K. Yoo
A ZnCo2O4 electrocatalyst for the efficient MOR and ORR.
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Highly active hydrogen evolution catalysis on oxygen-deficient double-perovskite oxide PrBaCo2O6−δ

Mater. Chem. Front., 2020, 4,1519-1529
DOI: 10.1039/D0QM00056F, Research Article
Hayato Togano, Kaisei Asai, Seiji Oda, Hidekazu Ikeno, Shogo Kawaguchi, Kengo Oka, Kouhei Wada, Shunsuke Yagi, Ikuya Yamada
Oxygen-deficient double perovskite oxides PrBaCo2O6−δ exhibit highly active hydrogen evolution reaction catalysis, which is associated with multiple factors: oxygen deficiency, high Co valence, and A-site cation ordering.
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An advanced three-dimensionally ordered macroporous NiCo2O4 spinel as a bifunctional electrocatalyst for rechargeable Zn–air batteries

J. Mater. Chem. A, 2020, 8,8554-8565
DOI: 10.1039/D0TA00874E, Paper
José Béjar, Lorena Álvarez-Contreras, Janet Ledesma-García, Noé Arjona, Luis Gerardo Arriaga
A rechargeable ZAB was assembled using a NiCo2O4 3DOM spinel displaying an open circuit potential of 1.44 V, a power density of 101 mW cm−2, and a high durability during charge/discharge cycling (being operated for 21 h).
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Facile synthesis of Mn-doped NiCo2O4 nanoparticles with enhanced electrochemical performance for a battery-type supercapacitor electrode

Dalton Trans., 2020, Advance Article
DOI: 10.1039/D0DT01177K, Paper
To Van Nguyen, Le The Son, Vu Van Thuy, Vu Dinh Thao, Masahito Hatsukano, Koichi Higashimine, Shinya Maenosono, Sang-Eun Chun, Tran Viet Thu
We report the synthesis of manganese-doped nickel cobalt oxide (Mn-doped NiCo2O4) nanoparticles (NPs) by an efficient hydrothermal and subsequent calcination route.
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