PtCu nanoalloy loaded on sulfur-doped porous g-C3N4 for electrocatalytic hydrogen evolution DOI

Can Chang,

Jicheng Wu, Dandan Wu

et al.

New Journal of Chemistry, Journal Year: 2024, Volume and Issue: 48(10), P. 4296 - 4303

Published: Jan. 1, 2024

One-step thermal decomposition yielded sulfur-doped porous g-C 3 N 4 nanosheets, subsequently loaded with a PtCu alloy for the HER.

Language: Английский

Microwave‐Assisted PtRu Alloying on Defective Tungsten Oxide: A Pathway to Improved Hydroxyl Dynamics for Highly‐Efficient Hydrogen Evolution Reaction DOI Open Access
Bowen Zhou, Juping Wang, Lingfei Guo

et al.

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 3, 2024

Abstract Platinum (Pt)‐based compounds are the benchmarked catalysts for hydrogen evolution reaction (HER) but exhibit slow kinetics in alkaline environments. The * OH accumulation on Pt surface can block active sites, affecting proton reduction and water re‐adsorption. Alloying Ruthenium (Ru) with sites significantly modulate adsorption desorption of dissociation intermediates. Choosing suitable supports utilizing metal‐support interaction (MSI) is crucial site optimization. PtRu alloy anchored tungsten oxide (WO 3 ) rich oxygen vacancies (O V prepared through an ultrafast microwave‐assisted approach. Benefiting from coupling effects between alloying MSI, PtRu/WO ‐O exhibits exceptionally high HER activity. In 1 m KOH, KOH + seawater, 0.5 H 2 SO 4 , it requires ultralow overpotentials 9, 26, 6 mV to achieve 10 mA cm −2 respectively. designed catalyst surpasses commercial Pt/C mass activity demonstrates considerable potential intermittent energy integration. Density functional theory reveals that Ru reduces barrier dissociating OH, modulating blockage then promoting overall process. This study offers insights into rapid synthesis non‐carbon supported modulation generation.

Language: Английский

Citations

22
High-Entropy layered double hydroxides Tailor Pt electron state for Promoting acidic hydrogen evolution reaction DOI
Hui Xu, Yang Liu, Kun Wang

et al.

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 684, P. 566 - 574

Published: Jan. 11, 2025

Language: Английский

Citations

9
High entropy catalysts in electrolytic water splitting: A review from properties to applications DOI
Zhijie Zhang, Yu Ning, Yilin Dong

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 498, P. 155736 - 155736

Published: Sept. 12, 2024

Language: Английский

Citations

9
Amorphous MoS2 Decorated Ni3S2 with a Core–shell Structure of Urchin‐Like on Nickel‐Foam Efficient Hydrogen Evolution in Acidic and Alkaline Media DOI
Mengliang Hu, Yuanpeng Qian,

Shuhui Yu

et al.

Small, Journal Year: 2023, Volume and Issue: 20(5)

Published: Sept. 27, 2023

Abstract The large‐scale commercialization of the hydrogen evolution reaction (HER) necessitates development cost‐effective and highly efficient electrocatalysts. Although transition metal sulfides, such as MoS 2 Ni 3 S , hold great potential in field HER, their catalytic performance has been unsatisfactory due to incomplete exposure active sites poor electrical conductivity. In this work, via a simple hydrothermal strategy, amorphous nanoshells form urchin‐like ‐Ni core‐shell heterogeneous structure is realized situ loaded on nickel foam (A‐MoS ‐NF). particular, XPS analysis results show that coupling makes electrode surface exhibit electron‐abundant property, which will have positive impact HER activity. addition, fully exposed site another crucial factor contributing its high A‐MoS ‐NF electrode. at current density 10 mA cm⁻ overpotential 95 mV (1.0 m KOH) 145 (0.5 H SO 4 ). This work highlights importance sea‐urchin optimizing performance, provides an important reference for research.

Language: Английский

Citations

17
POM@TM-MOFs prism-structures as a superior bifunctional electrocatalyst for overall water splitting DOI
Hongtao Cui, Lige Gong, Jihua Wang

et al.

Journal of Solid State Chemistry, Journal Year: 2024, Volume and Issue: 331, P. 124550 - 124550

Published: Jan. 6, 2024

Language: Английский

Citations

7
Strong Metal‐Support Interaction Modulation between Pt Nanoclusters and Mn3O4 Nanosheets through Oxygen Vacancy Control to Achieve High Activities for Acidic Hydrogen Evolution DOI

Dongxiong Hu,

Yongjie Wang,

Weiheng Chen

et al.

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

Published: June 4, 2024

Abstract The optimization of metal‐support interactions is used to fabricate noble metal‐based nanoclusters with high activity for hydrogen evolution reaction (HER) in acid media. Specifically, the oxygen‐defective Mn 3 O 4 nanosheets supported Pt ≈1.71 nm diameter (Pt/V·‐Mn NSs) are synthesized through controlled solvothermal reaction. Pt/V·‐Mn NSs show a superior and excellent stability HER acidic They only require an overpotential 19 mV drive −10 mA cm −2 negligible loss at −250 >200 >60 h, respectively. Their mass 12.4 times higher than that Pt/C even those many single‐atom based catalysts. DFT calculations their arises mainly from strong interaction between . It can facilitate charge transfer Pt, optimizing H adsorption on catalyst surface promoting 2 Volmer–Tafel mechanism. oxygen vacancies V·‐Mn found be inconducive NSs, highlighting great importance reduce vacancy levels NSs.

Language: Английский

Citations

7
Tungsten Oxide-Based Electrocatalysts for Energy Conversion DOI
Hui Xu,

Zhili Xu,

Kun Wang

et al.

Chemical Communications, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

This review reports a summary of the recent progress in WO x -based catalyst for electrocatalytic reactions, emphasizing their crucial roles as active species, electron-transfer and hydrogen spillover carriers, microenvironment regulators.

Language: Английский

Citations

6
Electron-regulated WO3/Mn3O4 bi-enzyme activity for colorimetric detection epinephrine with smartphones DOI Open Access

Shu Huang,

Mingxia He,

Jiang Shao-juan

et al.

Sensors and Actuators B Chemical, Journal Year: 2023, Volume and Issue: 390, P. 134009 - 134009

Published: May 23, 2023

Language: Английский

Citations

14
Inducing hollow and porous hematite nanorod photoanodes by rare earth and transition metal doping for enhanced solar water splitting DOI
Chenyang Xu, Hongxin Wang, Ke Liang

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(20), P. 11831 - 11840

Published: Jan. 1, 2024

A hollow and porous Eu,Nb : Fe 2 O 3 nanorod photoanode was fabricated by hybrid microwave annealing (HMA) induced conversion of shell Eu- core Nb-doped FeOOH nanorods, simultaneously enhancing photocurrent density reducing turn-on voltage.

Language: Английский

Citations

5
Ring-shaped cavity anchor Pt to derive Pt/WO3-x heterointerfaces for efficient hydrogen evolution in acidic water and seawater DOI

Na Liu,

Yukun Lu,

Haoyuan Hao

et al.

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 676, P. 918 - 926

Published: July 23, 2024

Language: Английский

Citations

5