Anodic hydrazine oxidation assisted hydrogen evolution over bimetallic RhIr mesoporous nanospheres

Abstract

Replacing sluggish anodic oxygen evolution reaction with thermodynamically favorable hydrazine oxidation reaction (HzOR) is a powerful energy-saving approach for hydrogen production, and the efficiency of this process mainly relies on...

Bifunctional Ultrathin RhRu0.5‐Alloy Nanowire Electrocatalysts for Hydrazine‐Assisted Water Splitting

“…NiCu alloy 1.0 m KOH +0.5 m N 2 H 4 0.41 V@100 mA cm −2 [34] RhIr mesoporous nanoparticles 1.0 m KOH +0.5 m N 2 H 4 0.13 V@10 mA cm −2 0.604 V@100 mA cm −2 [35] voltage increases after each 10 hour test, the voltage increase can be partially attributed to the consumption of hydrazine during long-term electrolysis. Indeed, the performance can be largely recovered by refreshing the electrolyte with the original hydrazine concentration.…”

Discovery of Anodic Thiourea Oxidation as a Sustainable Counter Reaction to Boost Electro-Reductive Organic Transformations

“…Besides, the pinacol coupling was also coupled with the Zn anode and provided the target product in 90% with anode dissolving (entry 2). Then, to identify the alternatives to the sacrificial metal anode, we carried out the electrolysis with addition of TU, TU derivatives, and some patchily reported anodic feedstocks. − Delightfully, when TU was employed, the model pinacol coupling proceeded, and the corresponding diol 2a was obtained in 86% yield (entry 3). In contrast, the use of hydrazine, urea, glycerol, and triethylamine did not promote the cathodic process (entries 4–7).…”

Environmentally benign general synthesis of nonconsecutive carbon-coated RuP2porous microsheets as efficient bifunctional electrocatalysts under neutral conditions for energy-saving H2production in hybrid water electrolysis

“…S29 †) to reach a current density of 10 mA cm −2 in 1.0 M KOH/0.3 M N 2 H 4 , much closer and even comparable to the recently reported values. 23,50,51 Interestingly, RuP 2 @InC-MS further demonstrated a better catalyic capability towards N 2 H 4 in simulated wastewater containing Mg 2+ and Ca 2+ ions (Fig. S30 †), 52 providing a broad avenue for hydrazine degradation in sewage via an environmentally friendly and economical protocol.…”