Recent advances in non-precious group metal-based catalysts for water electrolysis and beyond

Abstract

This review outlines the strategies and challenges of the state-of-the-art non-precious group metal-based catalysts toward water electrolysis.

Dual-metal atom incorporated N-doped graphenes as oxygen evolution reaction electrocatalysts: high activities achieved by site synergies

“…Water electrolysis to produce hydrogen, a new and clean energy source, can help solve the current energy crisis and remediate our environment. [1][2][3][4] As its two half reactions, the four-electrontransfer oxygen evolution reaction (OER) at the anode is kinetically more sluggish than the two-electron-transfer hydrogen evolution reaction (HER) at the cathode, and thus mainly determines the efficiency of water splitting. [5][6][7][8][9][10] A high overpotential is usually required to drive the OER, resulting in large energy loss.…”

Chemical and electrochemical synthesis of cobalt hydroxides: selective phase transformation and application to distinct electrocatalytic reactions

“…Electrocatalytic hydrogen generation from water splitting is a promising technology for sustainable energy storage, 1–3 which consists of a hydrogen evolution reaction at the cathode, and an oxygen evolution reaction (OER) or a chlorine oxidation reaction (COR) at the anode (eqn (1)–(3)). 4–6 2H 2 O → O 2 + 4H + + 4e − , E ° = 1.23 V2Cl − → Cl 2 + 2e − , E ° = 1.36 VCl − + H 2 O → HOCl + H + + e − , E ° = 1.49 V…”

In situ phase-reconfiguration to synthesize Ru, B co-doped nickel phosphide for energy-efficient hydrogen generation in alkaline electrolytes

“…Hydrogen (H 2 ) is seen as one of the most essential energy sources in the 21st century due to its advantages of high caloric value and zero carbon emissions. [1][2][3] However, the main source of hydrogen is still conventional fossil fuel reforming. In contrast, electrocatalytic hydrogen production by combining renewable energy with water splitting is considered one of the most promising methods for hydrogen production.…”