design and fabrication of cds@nico-ldh combined electrocatalyst coating by adjusting electronic structure and interface engineering of layered double hydroxide

It is eminent in many processes of renewable energy conversion to efficient explore inexpensive electrocatalysts for both oxygen evolution reaction (oer) and hydrogen evolution reaction (her). the present paper is a report on a convenient approach to the synthesis of a very efficient hybrid electrocatalyst, consisting of ni-co layered double hydroxide as the shell and cds as the core, hence cds@nico-ldh. this electrode has a large specific surface area that allows fast transference of electrons and exhibits long-term stability. we fabricated 3d cds, cds@ni1.5co0.5-ldh, cds@ni1.33co0.67-ldh, and cds@ni1.67co0.33-ldh electrodes on a nickel foam using synthetic electrodeposition. after electrochemical tests, cds@ni1.5co0.5-ldh exhibited the best her performance via producing current densities of 20 and 100 ma cm-2 at overpotentials of -135 and -189 mv, respectively. further, it showed the best oer catalytic activity by generating current densities of 20 and 100 ma cm-2 at overpotentials of 144 and 206 mv, in that order.

Design and fabrication of CdS@NiCo-LDH combined electrocatalyst coating by adjusting electronic structure and interface engineering of layered double hydroxide

It is eminent in many processes of renewable energy conversion to efficient explore inexpensive electrocatalysts for both oxygen evolution reaction (OER) and hydrogen evolution reaction (HER). The present paper is a report on a convenient approach to the synthesis of a very efficient hybrid electrocatalyst, consisting of Ni-Co layered double hydroxide as the shell and CdS as the core, hence CdS@NiCo-LDH. This electrode has a large specific surface area that allows fast transference of electrons and exhibits long-term stability. We fabricated 3D CdS, CdS@Ni1.5Co0.5-LDH, CdS@Ni1.33Co0.67-LDH, and CdS@Ni1.67Co0.33-LDH electrodes on a nickel foam using synthetic electrodeposition. After electrochemical tests, CdS@Ni1.5Co0.5-LDH exhibited the best HER performance via producing current densities of 20 and 100 mA cm-2 at overpotentials of -135 and -189 mV, respectively. Further, it showed the best OER catalytic activity by generating current densities of 20 and 100 mA cm-2 at overpotentials of 144 and 206 mV, in that order.