Hierarchical CoMn-LDH and Heterostructured Composites for Advanced Supercapacitors and Electrocatalysis Applications.

ABSTRACT: In the present study, self-assembled hierarchical CoMn-LDH, CoMn@CuZnS, and CoMn@CuZnFeS heterostructured composites were synthesized for bifunctional applications. As an electrode for a supercapacitor, CoMn-LDH demonstrated superior areal and specific capacitance of 5.323 F cm^-2 (279.49 mAh/g) at 4 mA cm^-2, comparable to or even higher than other LDHs. The assembled AC//CoMn-LDH hybrid supercapacitor device further demonstrated better stability with 63% original capacitance over 20,000 cycles. Later, as a catalyst, CoMn-LDH, CoMn@CuZnS, and CoMn@CuZnFeS electrodes revealed better performance, with overpotentials of 340, 350, and 366 and -199, -215, and -222 mV to attain 10 mA cm^-2 of current density for the oxygen evolution reaction (OER) and hydrogen evol

SUBMITTER: Chavan GT 

PROVIDER: S-EPMC11818902 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature