Recent progress in Co₉S₈-based materials for hydrogen and oxygen electrocatalysis

Abstract

Co9S8-based materials have attracted tremendous attention owing to their unique physical properties, which are widely adopted as electrocatalysts in hydrogen- and oxygen-related electrocatalysis.

Freestanding Needle Flower Structure CuCo2S4 on Carbon Cloth for Flexible High Energy Supercapacitors With the Gel Electrolyte

“…However, the maximum capacitance and energy density of these materials are severely limited by the lower electrical conductivity. Among them, transitional bimetallic sulfides can provide a richer redox reaction, resulting in a generally superior electrochemical performance (Xiong et al, 2015;Sun et al, 2017;Wang J. et al, 2018;You et al, 2018;Dong et al, 2019). For example, Li et al supported NiCo 2 S 4 nanorods on Ni foam, which displayed a 94.96% capacitive retention over 10,000 cycles Li X.-X et al, 2018).…”

Oxygen Vacancy–Rich In‐Doped CoO/CoP Heterostructure as an Effective Air Cathode for Rechargeable Zn–Air Batteries

“…Tailoring composition and structure of catalysts is a great important strategy in improving their oxygen electrocatalytic performance . Recently, the transition metal oxides (e.g., CoO x and MnO x ) have aroused wide interest to replace noble metal–based electrocatalysts in oxygen electrocatalysis .…”

Metal–organic framework based bifunctional oxygen electrocatalysts for rechargeable zinc–air batteries: current progress and prospects

“…Metal suldes also have high ORR and OER performance, especially when metal suldes are imbedded in porous matrices to improve their conductivity. [114][115][116] In addition, during the preparation process of metal suldes, the S element can be doped into the carbon matrix, and the catalytic activity of the catalysts can be further improved. Using S-and Ncontaining organic ligands to construct Co-MOF, Zhang et al prepared a series of Co-MOFs with various morphologies including 1D nanorod, 2D sheet, 3D bulk and 1D nanober.…”