Energy-efficient hydrogen production coupled with simultaneous electrosynthesis of acetate over a mesoporous OsRh film

Abstract

The energy-efficient hydrogen production coupled with electrosynthesis of multicarbon compounds is efficient and sustainable alternative route for electrochemical valorization. Herein, mesoporous OsRh film on Ni Foam (mOsRh/NF) is synthesized by...

Heterointerface engineering of Rh/Pd metallene for hydrazine oxidation-assisted energy-saving hydrogen production

“…alcohols, sulde, and hydrazine) can effectively save energy to produce hydrogen. [12][13][14] Among them, the hydrazine oxidation reaction (HzOR, N 2 H 4 + 4OH − / N 2 + 4H 2 O + 4e − , −0.33 V) is a promising candidate due to the ultralow oxidation potential and safe production of N 2 . [15][16][17] Therefore, the integration of HzOR with HER is a viable strategy for hydrogen production with low energy consumption and safety.…”

Polyethylenimine-Ethylenediamine-Induced Pd Metallene toward Alkaline Oxygen Reduction

“…The electrocatalytic activity of the catalyst is significantly correlated with its morphology. − Metallene, a class of thin-layered two-dimensional (2D) materials with a thickness of several atomic layers, has garnered significant interest in electrocatalysis fields on account of its large-surface area and sufficient catalytic active sites. − The synthesis of PdMo bimetallene with highly curved and ultrathin structures has been reported, which exhibited excellent ORR performance in alkaline electrolytes . In addition to morphology control, another approach to enhance catalytic activity is interface engineering by polymer functionalization. − For example, Pt nanospines functionalized with polyallylamine (PAA) were synthesized, which effectively improved the ORR activity, selectivity, and durability because the loose PAA layer on the surface can effectively change the electronic structure of Pt atoms .…”

Bifunctional Cobalt–Nickel Sulfide Nanoflowers as Electrocatalysts for Concurrent Energy-Efficient Hydrogen Production and Sulfur Recycling

“…Water electrolysis is considered a green approach for production of high-pure hydrogen, but it still suffers from economic bottlenecks, usually requiring a high voltage of 1.8 V for hydrogen production due to the slow kinetics of the oxygen evolution reaction (OER). − Constructing a hybrid water electrolysis system with a thermodynamically favorable anode reaction instead of OER can effectively improve energy conversion efficiency. Recently, oxidation reactions of small molecule (e.g., glucose, alcohol, − urea, , hydrazine, − and 5-hydroxymethylfurfural − )-assisted water splitting has been reported for energy-efficient hydrogen production. Specifically, the sulfion oxidation reaction (SOR, S 2– → S + 2e – , E θ = −0.48 V vs SHE) with low oxidation potential and fast kinetics is an attractive alternative to OER.…”