Optimized Irruoₓ Mixed Oxide Nanocatalyst for Enhanced Oxygen Evolution Electrocatalysis in Acidic Water Splitting: A Comparative Study with Iro₂ and Ruo₂ Nanoparticles DOI
Mohammad Zhiani, Haideh Balali Dehkordi, Junwu Xiao

et al.

Published: Jan. 1, 2024

Download This Paper Open PDF in Browser Add to My Library Share: Permalink Using these links will ensure access this page indefinitely Copy URL DOI

Language: Английский

Strong Transboundary Electron Transfer of High-entropy Quantum-dots Driving Rapid Hydrogen Evolution Kinetics DOI Creative Commons
Hao Zhao, Mengyuan Liu,

Qiansen Wang

et al.

Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(18), P. 6594 - 6605

Published: Jan. 1, 2024

Strong transboundary electron transfer in high-entropy quantum-dots significantly accelerates the Tafel kinetics HER, which effectively reduces cost of cathode catalyst proton exchange membrane water electrolysis (PEMWE).

Language: Английский

Citations

9
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
Carbon confined Mo doped CoP for alkali overall water splitting with enhanced catalytic activity and durability DOI

Jiabing Luo,

Yongxiao Tuo,

Jianchao Zhang

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161519 - 161519

Published: March 1, 2025

Language: Английский

Citations

0
Wearable Sensor for Continuous Monitoring Multiple Biofluids: Improved Performances by Conductive Metal‐Organic Framework with Dual‐Redox Sites on Flexible Graphene Fiber Microelectrode DOI Open Access
Wei Huang, Yun Xu, Yong Yang

et al.

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

Published: March 3, 2025

Abstract Wearable sensors hold significant promise for continuous, real‐time, and non‐invasive analysis in biofluids. However, current wearable sensor technologies suffer from low accuracy detecting trace analytes, inevitable signal distortion due to deformation, inadequate biofluid replenishment. Herein, a electrochemical is developed by integrating designed metal‐organic frameworks (MOFs) modified graphene fiber (GF) microelectrode into flexible microfluidic chip. The proposed atomically precise phthalocyanine‐based MOFs, with high‐density dual‐redox sites intrinsic conductivity, ensure highly sensitive selective detection of the metabolite uric acid (UA) tyrosine (Tyr) freestanding, functionalized GF assembled nanosheets. Therefore, it exhibits excellent mechanical flexibility, large surface area, high temporal/spatial resolution. This contributes robust bio‐interface adaptable various skin areas improves vivo detection. Consequently, high‐performance sensing system based on dual‐redox‐sites integrated chip efficient collection rapid replenishment raw biofluids, results practical real‐time monitoring UA Tyr sweat saliva, which are utilized gout management tracking levels patients healthy controls during purine‐rich dietary challenge.

Language: Английский

Citations

0
A Library of Polymetallic Alloy Nanotubes: From Binary to Septenary DOI
Cheng Yang,

Jiasai Yao,

Senyao Meng

et al.

Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown

Published: March 4, 2025

The polymetallic alloy nanostructure has received widespread attention in electrocatalytic reactions due to the variability composition and excellent performance. However, controllable synthesis of one-dimensional (1D) nanomaterials remains a significant challenge. Herein, we propose new general low-temperature method prepare library binary septenary nanotubes, this can be used synthesize 18 kinds nanotube (NT), including eight high-entropy (HEA) NT. A representative Cu30Ni26Co19Ru14Ir11 HEA NT demonstrates efficient stable catalytic performance for both oxygen evolution reaction (OER) hydrogen (HER). exhibits an overpotential only 121 mV HER 272 OER, respectively, when measured at current density 100 mA cm-2. In addition, two-electrode system comprising impressive efficiency cm-2 during overall water splitting, requiring potential 1.67 V. high activity is attributed downward shift d-band center. HER, center reduce binding energy with *H, which beneficial desorption process hydrogen. also barrier associated rate-determining step from *O *OOH. This work seeks offer synthesizing nanotubes structures compositions under mild conditions.

Language: Английский

Citations

0
Dual Active Site Engineering in Porous NiW Bimetallic Alloys for Enhanced Alkaline Hydrogen Evolution Reaction DOI
Weijie Li, Zhenrui Ni, Ouardia Akdim

et al.

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

Published: May 9, 2025

Abstract Utilizing dual active sites in electrocatalysts creates a synergistic effect, enabling the independent optimization of H 2 O dissociation and intermediate adsorption/desorption, which turn enhances efficiency hydrogen evolution reaction (HER). Herein, porous NiW bimetallic alloy electrocatalyst using dynamic bubble template (DHBT) strategy is fabricated. This capitalizes on effect sites, achieving industrial‐level current densities 500 1000 mA cm −2 for HER 1.0 M KOH, with low overpotentials 198 264 mV, respectively. It also demonstrates excellent stability over 200 h test. Theoretical studies reveal that alloying Ni W shifts d‐band center ( ε d ) 5d orbital downward, *OH desorption promotes adsorption at site, leading to increased site availability. Meanwhile, this shift provides more accessible H* intermediates, further enhancing production 1 hollow site. When implemented solar‐driven water splitting system, it achieves high solar‐to‐hydrogen (STH) conversion 16.59%. work underscores effectiveness sustainable production.

Language: Английский

Citations

0
Non-metallic surface-modified X-Cu (X = F, Cl, Br) metal catalysts for all-pH hydrogen evolution reaction with high performance DOI

Yao Tang,

Chunyan Fan,

Zehao Zang

et al.

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 683, P. 312 - 321

Published: Dec. 12, 2024

Language: Английский

Citations

2
d-Band Center Modulated Water Molecule Adsorption and Activation towards Highly Photocatalytic Toluene Mineralization DOI
Hao Ma,

Xianli Hu,

Xuemei Wang

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: unknown, P. 124638 - 124638

Published: Sept. 1, 2024

Language: Английский

Citations

1
Optimized Irruoₓ Mixed Oxide Nanocatalyst for Enhanced Oxygen Evolution Electrocatalysis in Acidic Water Splitting: A Comparative Study with Iro₂ and Ruo₂ Nanoparticles DOI
Mohammad Zhiani, Haideh Balali Dehkordi, Junwu Xiao

et al.

Published: Jan. 1, 2024

Download This Paper Open PDF in Browser Add to My Library Share: Permalink Using these links will ensure access this page indefinitely Copy URL DOI

Language: Английский

Citations

0