Enhanced ethanol oxidation reaction of CoSeO3 by Ni-doping for water electrolysis and an innovative zinc-ethanol-air battery.

TL;DR: A hierarchically porous W/N/C nanoframework is synthesized and demonstrated as a trifunctional electrocatalyst for rechargeable Zn-Air/iodide hybrid batteries, exhibiting high catalytic activity, robust durability, and superior performance compared to commercial Pt/C catalysts.

TL;DR: Researchers develop NiO/MoO2 catalysts hybridized with wheat husk-derived activated carbon, enhancing ethanol oxidation efficiency in alkaline environments, achieving a current density of 16 mA cm^-2 and 93% stability after 5000 cycles.

Abstract: To improve the utilization efficiency of precious metals, metal‐supported materials provide a direction for fabricating highly active and stable heterogeneous catalysts. Herein, carbon cloth (CC)‐supported Earth‐abundant CoS2 nanosheet arrays (CoS2/CC) are presented as ideal substrates for ultrafine Pt deposition (Pt‐CoS2/CC) to achieve remarkable performance toward the hydrogen and oxygen evolution reactions (HER/OER) in alkaline solutions. Notably, the Pt‐CoS2/CC hybrid delivers an overpotential of 24 mV at 10 mA cm−2 and a mass activity of 3.89 A Ptmg−1, which is 4.7 times higher than that of commercial Pt/C, at an overpotential of 130 mV for catalyzing the HER. An alkali‐electrolyzer using Pt‐CoS2/CC as a bifunctional electrode enables a water‐splitting current density of 10 mA cm−2 at a low voltage of 1.55 V and can sustain for more than 20 h, which is superior to that of the state‐of‐the‐art Pt/C+RuO2 catalyst. Further experimental and theoretical simulation studies demonstrate that strong electronic interaction between Pt and CoS2 synergistically optimize hydrogen adsorption/desorption behaviors and facilitate the in situ generation of OER active species, enhancing the overall water‐splitting performance. This work highlights the regulation of interfacial and electronic synergy in pursuit of highly efficient and durable supported catalysts for hydrogen and oxygen electrocatalytic applications.

TL;DR: Unique ultrathin CoSe(2)-DETA (protonated) mesostructured nanobelts with multiple stacked layers which are highly parallel to the axial direction have been first prepared in a binary solution composed of organic amine and water under mild solvothermal conditions.

TL;DR: In this paper , the key synergistic interactions, binary complementary effects, and the bifunctional functions of single atoms with other active species are defined and discussed in detail, with particular emphasis on the homogeneous and heterogeneous combinations, spatial distribution, synthetic strategies, and thus, derived outstanding catalytic performance.

TL;DR: In this paper, crystallographically amorphous films of cobalt selenide have been deposited from aqueous solution onto planar Ti supports and evaluated as electrocatalysts for the hydrogen evolution reaction.