Efficient H 2 evolution coupled with oxidative refining of alcohols via a hierarchically porous nickel bifunctional electrocatalyst. Nanotechnology makes biomass electrolysis more energy efficient than water electrolysis. Low-voltage electrolytic hydrogen production derived from efficient water and ethanol oxidation on fluorine-modified FeOOH anode. Separating hydrogen and oxygen evolution in alkaline water electrolysis using nickel hydroxide. Electrocatalytic and photocatalytic hydrogen evolution integrated with organic oxidation. Decoupled catalytic hydrogen evolution from a molecular metal oxide redox mediator in water splitting. Accelerating water dissociation in bipolar membranes and for electrocatalysis. Phase segregation reversibility in mixed-metal hydroxide water oxidation catalysts.

High-valence metals improve oxygen evolution reaction performance by modulating 3 d metal oxidation cycle energetics. Activating and optimizing MoS 2 basal planes for hydrogen evolution through the formation of strained sulphur vacancies. An efficient and pH-universal ruthenium-based catalyst for the hydrogen evolution reaction. Heterogeneous bimetallic phosphide Ni 2P-Fe 2P as an efficient bifunctional catalyst for water/seawater splitting. Electrocatalytic hydrogen evolution of ultrathin Co-Mo 5N 6 heterojunction with interfacial electron redistribution. A comparative overview of hydrogen production processes. Nitrogen-doped carbon nanotube arrays with high electrocatalytic activity for oxygen reduction. Engineering bunched Pt-Ni alloy nanocages for efficient oxygen reduction in practical fuel cells. Low-temperature hydrogen production from water and methanol using Pt/α-MoC catalysts. Opportunities and challenges for a sustainable energy future. This study provides a promising avenue for the safe, efficient and scalable production of high-purity hydrogen.Ĭhu, S. The assembled electrolyser requires an electricity input of only ~0.35 kWh per m 3 of H 2, in contrast to the ~5 kWh per m 3 of H 2 required for conventional water electrolysis. Unlike conventional aldehyde electrooxidation, in which the hydrogen atom of the aldehyde group is oxidized into H 2O at high potentials, the low-potential aldehyde oxidation enables the hydrogen atom to recombine into H 2 gas. Here we report a hydrogen production system that combines anodic and cathodic H 2 production from low-potential aldehyde oxidation and the hydrogen evolution reaction, respectively, at a low voltage of ~0.1 V. Hydrogen production through water electrolysis is of considerable interest for converting the intermittent electricity generated by renewable energy sources into storable chemical energy, but the typical water electrolysis process requires a high working voltage (>1.23 V) and produces oxygen at the anode in addition to hydrogen at the cathode.

Cathode reaction