Visualization of the Key Proton Activities in Hydrogen Evolution Reaction by Electrochromic Catalyst DOI
Yaping Jiang, Jun Hu,

Hang Cai

et al.

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

Published: April 21, 2025

Abstract The electrocatalytic hydrogen evolution reaction (HER) is a promising route to produce sustainable energy carrier for global carbon neutrality. HER performance largely determined by the overall proton activities, but identification of such key activities in microscopic process rather difficult. Herein, study demonstrates visualized concept integrating fundamental with electrochromic technology on well‐designed Pt@WO 3 platform acidic electrolyte, where can be rapidly discriminated color changes electrode. In contrast bare WO counterpart, electrode displays more positive potential initial‐coloration state and faster decoloration rate associated significantly improved kinetics intercalation deintercalation within component. Correspondingly, as‐prepared catalyst exhibits remarkable activity lower onset‐potential (45 mV, adsorption accumulation) smaller Tafel slope (50 mV dec −1 , desorption), nearly 11.1‐ 3.5‐fold enhancement than those counterpart. It believed that work interesting visualization functionality into may improve readability advance exploration intelligent electrocatalysts.

Language: Английский

Construction of CoP/MnP/Cu3P heterojunction for efficient methanol oxidation-assisted seawater splitting DOI
Weijia Liu, Min Zhou, Jingwen Zhang

et al.

Materials Chemistry Frontiers, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

A phosphide heterojunction has been developed as an efficient catalyst toward methanol-assisted seawater splitting with good activity and high durability.

Language: Английский

Citations

2
Pulsed Laser-patterned high-entropy single-atomic sites and alloy coordinated graphene oxide for pH-universal water electrolysis DOI

Yeryeong Lee,

Jayaraman Theerthagiri, Wanwisa Limphirat

et al.

Journal of Materials Chemistry A, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

We introduce high-entropy single-atom catalysts (HESACs) from FeRuPtNiCoPd HEA on GO via pulsed laser irradiation in liquids. Synergistic interactions and rapid Fe 2+ photoreduction enhance active sites, achieving superior overall water splitting.

Language: Английский

Citations

2
Wide-area tip-like effect boosting electrocatalytic sulfion oxidation for energy-efficient hydrogen production in seawater electrolysis DOI

Kecheng Tong,

Wenhui Qiu,

Shucong Zhang

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161611 - 161611

Published: March 1, 2025

Language: Английский

Citations

0
Refined Protocol for Improving Accuracy and Reliability in Urea Quantification During Electrochemical C─N Coupling Reactions DOI Open Access
Weidong Dai, Shiyong Mou,

Siyuan Liu

et al.

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

Published: March 24, 2025

Promoted by the growing demand for sustainable carbon and nitrogen cycling, electrochemical C─N coupling in urea synthesis has attracted intensive interest. Urea quantification provides basis an in-depth understanding of structure-performance correlations iterative optimization performance. However, current methods have non-negligible drawbacks, largely bringing about false positive or negatives risks. Herein, most accessible commonly used techniques, namely diacetylmonoxime-thiosemicarbazide Urease-based methods, are comprehensively re-assessed. The adverse impacts caused nitrite, metallic impurities, standard curve protocol thoroughly identified. Most importantly, direct problem-solving strategies proposed to rule out those confounding factors chemical pre-reduction, galvanic replacement, refinement protocol, respectively. This refined method can solidify reproduction electrosynthesis studies thus promote sound development this emerging field.

Language: Английский

Citations

0
Bandgap Engineering on UiO–66 Metal‐Organic Framework Derivatives for Solar‐Driven Seawater Desalination DOI Creative Commons

Qian Shao,

Yutong Ding, Wenxian Liu

et al.

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

Published: April 11, 2025

Abstract The growing scarcity of freshwater, driven by climate change and pollution, necessitates the development efficient sustainable desalination technologies. Solar‐powered interfacial water evaporation has emerged as a promising solution; however, its practical implementation is hindered limited availability stable photothermal materials. Herein, bandgap engineering strategy via linker modification to enhance conversion capability metal‐organic frameworks (MOFs) reported toward solar‐driven desalination. By systematically introducing functional groups with varying electron‐donating electron‐withdrawing abilities, energy UiO–66–X (X = ─F, ─H, ─OH, ─NH 2 , ─(NH ) finely tuned. Density theory (DFT) calculations femtosecond transient absorption (fs–TA) spectroscopy reveal that stronger narrow MOFs, thereby improving their efficiency. optimized UiO–66–(NH material reaches peak surface temperature 58.7 °C when exposed simulated sunlight at ≈1 kW·m −2 efficiency 86.50% an rate 2.34 kg·m ·h −1 97.40%. This study presents novel approach for fine‐tuning in materials, offering pathway advanced solar technologies address global crisis.

Language: Английский

Citations

0
Visualization of the Key Proton Activities in Hydrogen Evolution Reaction by Electrochromic Catalyst DOI
Yaping Jiang, Jun Hu,

Hang Cai

et al.

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

Published: April 21, 2025

Abstract The electrocatalytic hydrogen evolution reaction (HER) is a promising route to produce sustainable energy carrier for global carbon neutrality. HER performance largely determined by the overall proton activities, but identification of such key activities in microscopic process rather difficult. Herein, study demonstrates visualized concept integrating fundamental with electrochromic technology on well‐designed Pt@WO 3 platform acidic electrolyte, where can be rapidly discriminated color changes electrode. In contrast bare WO counterpart, electrode displays more positive potential initial‐coloration state and faster decoloration rate associated significantly improved kinetics intercalation deintercalation within component. Correspondingly, as‐prepared catalyst exhibits remarkable activity lower onset‐potential (45 mV, adsorption accumulation) smaller Tafel slope (50 mV dec −1 , desorption), nearly 11.1‐ 3.5‐fold enhancement than those counterpart. It believed that work interesting visualization functionality into may improve readability advance exploration intelligent electrocatalysts.

Language: Английский

Citations

0