Tuning the Hydrogen Bond Network Inside the Helmholtz Plane for Industrial Hydrogen Evolution DOI Creative Commons
Xinyu Chen, Bianjing Sun, Qunliang Song

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 3, 2025

Abstract The role of the hydrogen bond network (HBN) within Helmholtz plane (HP) in regulating evolution kinetics for catalyst development remains ambiguous owing to lack fundamental understanding. Herein, leveraging ab initio molecular dynamics simulations, it is discovered that introducing weak metal bonds Ru/RuO 2 remarkably reshapes HBN. Subsequently, nanosheets loaded with single Ga atoms (Ga SA ‐Ru/RuO ) are successfully synthesized using a one‐step annealing strategy. In situ characterizations and theoretical calculations demonstrate atomic electric field generated by Ru─Ga can further improve proportion 4‐coordinated hydrogen‐bonded water free water, thus ensuring sufficient supply reactants under high current density. Especially, ‐based anion exchange membrane electrolyzers (AEMWEs) require only 1.69 1.84 V reach an industrial density 1,000 mA cm⁻ alkaline seawater conditions, respectively, operate stably 200 h. This study offers atomic‐level perspective designing highly efficient catalysts production.

Language: Английский

Green Hydrogen Production by Low‐Temperature Membrane‐Engineered Water Electrolyzers, and Regenerative Fuel Cells DOI Creative Commons

Alexandre Bodard,

Zhangsen Chen,

Oumayma ELJarray

et al.

Small Methods, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 17, 2024

Abstract Green hydrogen (H 2 ) is an essential component of global plans to reduce carbon emissions from hard‐to‐abate industries and heavy transport. However, challenges remain in the highly efficient H production water electrolysis powered by renewable energies. The sluggish oxygen evolution restrains splitting. Rational electrocatalyst designs for are pivotal electrolysis. With development high‐performance electrolyzers, scale‐up industrial‐level related activity can be achieved. This review summarizes recent advances such as proton exchange membrane electrolyzer (PEMWE) anion (AEMWE). critical PEMWE AEMWE high cost noble‐metal catalysts their durability, respectively. highlights anode cathode improving catalytic performance electrocatalysts, electrolyte engineering electrode assembly (MEA) optimizations, stack systems most promising electrolyzers Besides, advantages integrating fuel cells (FC), regenerative (RFC) into ecosystem introduced. Finally, perspective with superior presented.

Language: Английский

Citations

4
Electrolyte engineering towards efficient oxygen evolution electrodes with enhanced catalytic activity DOI
Zhilin Zhang, Chenyang Cai,

Yutao Hua

et al.

Fuel, Journal Year: 2025, Volume and Issue: 388, P. 134438 - 134438

Published: Jan. 23, 2025

Language: Английский

Citations

0
Enhanced lifespan of flexible rechargeable zinc-air batteries via cobalt phthalocyanine-carbon support interaction DOI
Xuhui Li,

Mengyang Yin,

Jing Zhang

et al.

Journal of Power Sources, Journal Year: 2025, Volume and Issue: 631, P. 236236 - 236236

Published: Jan. 24, 2025

Language: Английский

Citations

0
Seeding Janus Zn–Fe Diatomic Pairs on a Hollow Nanobox for Potent Catalytic Therapy DOI
Jin Ye,

Yunlong Li,

Jiating Xu

et al.

Nano Letters, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 27, 2025

Dual atomic nanozymes (DAzymes) are promising for applications in the field of tumor catalytic therapy. Here, integrating with ultrasmall Fe5C2 nanoclusters, asymmetric coordination featuring Janus Zn-Fe dual-atom sites an O2N2-Fe-Zn-N4 moiety embedded a carbon vacancy-engineered hollow nanobox (Janus ZnFe DAs-Fe5C2) was elaborately developed. Theoretical calculation revealed that synergistic effects Zn centers acting as both adsorption and active sites, oxygen-heteroatom doping, vacancy, nanoclusters jointly downshifted d-band center Fe 3d orbitals, optimizing desorption behaviors intermediates *OH, thereby significantly promoting activity. Upon 1064 nm laser irradiation, DAs-Fe5C2 superior photothermal conversion efficiency (η = 62.5%) showed thermal-augmented Fascinatingly, multienzymatic properties can suppress expression glutathione peroxidase 4 accelerate accumulation lipid peroxides, through which ferroptosis is triggered. Overall, tannin-involved will inspire more inventions biodegradable DAzymes therapy application.

Language: Английский

Citations

0
Controllable Detachment of Organic Ligands on Ultrathin Amorphous Nanosheets Tailors the Electron‐Aggregation for Accelerated pH‐Universal Hydrogen Reaction DOI Open Access
Wenwen Wang,

Xinzheng Liu,

Hui Feng

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 2, 2025

Tailoring the local environment of catalyst surface has emerged as an effective strategy to enhance reaction kinetics involving multiple intermediates. For hydrogen evolution reactions (HER), driving factors for aggregation and migration which are poorly understood in depth affects especially over a wide pH range. Inspired by selectivity microenvironment intermediates, interfacial electrocatalyst composed Ru ultrafine nanocatalysts anchored onto monolayer amorphous (a-WCoNiO) nanosheets with electron-rich induced organic oleylamine ligand is designed realize high-performance pH-universal HER. This Ru/a-WCoNiO possesses impressively low overpotentials -13, -14, -14 mV at 10 mA cm-2 0.5 m H2SO4, 1 KOH PBS, respectively, ranking among best HER catalysts reported date. Benefiting from microenvironment, exhibits record-high turnover frequency (TOF) mass activity (MA), more than 47.9 times higher that commercial 20% Pt/C. Importantly, other precious metals loaded on a-WCoNiO enhancing their current density It believed this developed approach modifiers tailored practical significance advantages designing catalysts.

Language: Английский

Citations

0
Electrochemical Synthesis of High-Efficiency Water Electrolysis Catalysts DOI Creative Commons

Yang Wu,

Boxin Xiao,

Kunlong Liu

et al.

Electrochemical Energy Reviews, Journal Year: 2025, Volume and Issue: 8(1)

Published: Feb. 6, 2025

Language: Английский

Citations

0
Hierarchical Heterojunction Construction and Interaction Mechanism of Ru1-LaOx-NiMnOx Nanocomposite for Alkaline Hydrogen Evolution DOI

Qianzuo Liu,

Yunping Ma,

Nan Ma

et al.

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 179115 - 179115

Published: Feb. 1, 2025

Language: Английский

Citations

0
Crystal facet-induced reconstruction of MoN-supported Co pre-catalysts for optimized active sites and enhanced alkaline hydrogen evolution DOI
Chaoran Pi,

Difei Leng,

Xuming Zhang

et al.

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 687, P. 461 - 470

Published: Feb. 15, 2025

Language: Английский

Citations

0
Hammett Substituent Constant Guided Design of Ligand‐Modified Ru Electrocatalyst for Hydrogen Evolution Reaction DOI

Zelin Zhao,

De Wang, Jia Wang

et al.

ChemistrySelect, Journal Year: 2025, Volume and Issue: 10(7)

Published: Feb. 1, 2025

Abstract The design of efficient alkaline hydrogen evolution reaction (HER) electrocatalysts is crucial for the development green production. In this work, we report modulation HER activity Ru nanoparticles by functionalization using para‐substituted phenylacetylenes (R = Cl, H, C 2 H 5 , and OCH 3 ), which have different electron donating/withdrawing capabilities. A close correlation between Hammett substituent constant functionalized revealed, underlying mechanism investigated. Guided such correlation, 4‐ethylphenylacetylene‐modified (Ru─EPA) with a low overpotential 17.7 mV at current density 10 mA cm −2 in solution developed. mechanistic understanding gained work will provide important guidelines future high‐performance nanostructured electrocatalyst.

Language: Английский

Citations

0
Metal Nitride Catalysts for Photoelectrochemical and Electrochemical Catalysis DOI Creative Commons

Hee Ryeong Kwon,

Jin Wook Yang,

Ho Won Jang

et al.

Exploration, Journal Year: 2025, Volume and Issue: unknown

Published: March 2, 2025

ABSTRACT Metal nitrides have emerged as promising materials for photoelectrochemical and electrochemical catalysis due to their unique electronic properties structural versatility, offering high electrical conductivity abundant active sites catalytic reactions. Herein, we comprehensively explore the characteristics, synthesis, application of diverse metal nitride catalysts. Fundamental features advantages are presented in terms structure surface chemistry. We deal with synthetic principles parameters catalysts nitrogen source, introducing synthesis strategies various morphologies phases. Recent progress (photo)electrochemical reactions, such hydrogen evolution, oxygen reduction, carbon dioxide biomass valorization is discussed tailored roles. By providing future direction remaining challenges, this review aims guide design from a point view, contributing expanding into energy environmental technologies.

Language: Английский

Citations

0