RuCo@C Hollow Nanoprisms Derived from ZIF‐67 for Enhanced Hydrogen and Oxygen Evolution Reactions DOI Open Access
Abdulwahab Salah,

Hong‐Da Ren,

Nabilah Al‐Ansi

et al.

ChemSusChem, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 21, 2024

Abstract Zeolitic imidazolate frameworks (ZIFs) are commonly used to create complex hollow structures for energy applications. This study presents a simple method produce novel nanoprism Co@C hierarchical composite from ZIF‐67 through high‐temperature treatment at 800 °C. serves as platform Ru nanoparticle deposition, forming RuCo@C (RuCo@C HNP). As an electrocatalyst in 1 M KOH, HNP exhibits excellent hydrogen evolution reaction (HER) performance, with low overpotential of 32 mV reach 10 mA cm −2 , Tafel slope 39.67 dec −1 high turnover frequency (TOF) 3.83 s η 200 and stable performance over 50 h. It also achieves 266 the oxygen (OER) 45.22 . Density functional theory (DFT) calculations reveal that doping Ni/Co maintains water dissociation barrier, reduces barrier OER rate‐determining step, creates active sites H*, enhancing adsorption/desorption abilities. These results attributed synergy between Co prism structure′s increased surface area. synthesizing using ZIF composites shows promise applications sector.

Language: Английский

Recent Advances of Ruthenium‐Based Electrocatalysts for Industrial Water Electrolyzers DOI
Wentao Zhou,

Chen Gu,

Lingbin Xie

et al.

Advanced Sustainable Systems, Journal Year: 2025, Volume and Issue: unknown

Published: April 10, 2025

Abstract Hydrogen production by electrochemical water splitting is considered to be a key strategic energy technology, and proton exchange membrane electrolyzers (PEMWEs) anion (AEMWEs) are ideal technologies for green hydrogen in recent years. However, PEMWEs AEMWEs lack low‐cost high‐performance acidic oxygen evolution reaction (OER) alkaline (HER) electrocatalysts respectively, limiting their large‐scale development. Recently, ruthenium (Ru)‐based have received lot of attention because activity better than that commercial catalysts price more affordable, showing great potential OER HER. there still obstacles Ru‐based practical applications industrial electrolyzers, regulatory strategies need developed further optimize its performance. Herein, comprehensive review presented concerning it. First, fundamental principles focus the basic content application discussed. Then, summarized, providing detailed analysis elucidate mechanisms, properties, electrolyzers. Finally, outlooks prospects challenges future proposed.

Language: Английский

Citations

0
RuCo@C Hollow Nanoprisms Derived from ZIF‐67 for Enhanced Hydrogen and Oxygen Evolution Reactions DOI Open Access
Abdulwahab Salah,

Hong‐Da Ren,

Nabilah Al‐Ansi

et al.

ChemSusChem, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 21, 2024

Abstract Zeolitic imidazolate frameworks (ZIFs) are commonly used to create complex hollow structures for energy applications. This study presents a simple method produce novel nanoprism Co@C hierarchical composite from ZIF‐67 through high‐temperature treatment at 800 °C. serves as platform Ru nanoparticle deposition, forming RuCo@C (RuCo@C HNP). As an electrocatalyst in 1 M KOH, HNP exhibits excellent hydrogen evolution reaction (HER) performance, with low overpotential of 32 mV reach 10 mA cm −2 , Tafel slope 39.67 dec −1 high turnover frequency (TOF) 3.83 s η 200 and stable performance over 50 h. It also achieves 266 the oxygen (OER) 45.22 . Density functional theory (DFT) calculations reveal that doping Ni/Co maintains water dissociation barrier, reduces barrier OER rate‐determining step, creates active sites H*, enhancing adsorption/desorption abilities. These results attributed synergy between Co prism structure′s increased surface area. synthesizing using ZIF composites shows promise applications sector.

Language: Английский

Citations

3