Dynamic Self‐Reconstruction Heterostructures: Boosting the High‐Stability for Hydrogen Evolution of NiMo Alloys in Acidic Environments DOI

Jieyao Li,

Wenhui Hu, Lingna Sun

et al.

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

Published: Oct. 30, 2024

Abstract Electrocatalytic water splitting is considered one of the most promising approaches for large‐scale hydrogen production. However, designing transition metal catalysts with high durability under acidic conditions remains a significant challenge. The catalyst closely related to changes during its operation, and constructing effective surface reconstruction strategies can help address issues metals in evolution reactions (HER). Herein, spontaneous formation surface‐reconstructed heterostructures NiMo alloys reported HER media. characterized by presence Ni/Mo nanoparticles Ni x Mo y O z nanosheets, which coexist as proceeds. Notably, E‐Ni 90 10 /CC After 96 h demonstrates significantly reduced overpotential 56.84 mV at mA cm⁻ 2 0.5 m sulfuric acid, better than other counterparts. Both experimental data theoretical calculations suggest that these spontaneously formed are helpful optimizing adsorption. Furthermore, downward shift d‐band center within heterostructure (Ni /Ni ) found facilitate desorption intermediate products, thereby enhancing overall activity. This work provides new perspective highly durable HER.

Language: Английский

In situ sacrificial CoMoO4 template to derive molybdenum-doped CoOOH nanosheets for alkaline hydrogen evolution reaction DOI
Hao Wang, Xiaodong Shao, Yafei Wei

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2025, Volume and Issue: unknown, P. 125110 - 125110

Published: Jan. 1, 2025

Language: Английский

Citations

3
Coupling Ir single atom with NiFe LDH/NiMo heterointerface toward efficient and durable water splitting at large current density DOI

Yuewen Wu,

Mingpeng Chen,

Huachuan Sun

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 360, P. 124548 - 124548

Published: Aug. 28, 2024

Language: Английский

Citations

13
CdS/NiCoAl-LDH heterojunction for superior photocatalytic hydrogen production and stability in water splitting DOI
Ruimin Yang,

Wenning Mu,

Longyan He

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 503, P. 158495 - 158495

Published: Dec. 12, 2024

Language: Английский

Citations

6
Strategies for the enhancements in catalytic performance and stability of anodic electrocatalyst in PEM water splitting DOI Creative Commons

Yuhua Xie,

Fang Luo, Zehui Yang

et al.

Energy Reviews, Journal Year: 2024, Volume and Issue: 3(4), P. 100103 - 100103

Published: July 16, 2024

This article presents a strategy for enhancing the catalytic performance and stability of anodic electrocatalysts in proton exchange membrane (PEM) water splitting. PEM splitting is sustainable method producing hydrogen oxygen from utilizing electrocatalysts. However, employed this process are crucial its commercialization due to harsh condition causing low stability. The main focus review strategies improving as well electrocatalysts, such doping with heteroatoms, alloying other metals. results demonstrate that these modifications can significantly enhance These open new possibilities development efficient stable splitting, paving way widespread use clean energy applications.

Language: Английский

Citations

5
NiCoMn phosphides-based 3D nanoflowers as universal electrocatalyst towards hydrogen evolution reaction at all pH values DOI
Ying Zhou,

Hao-Jie Shen,

Keke Zhang

et al.

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 88, P. 378 - 384

Published: Sept. 20, 2024

Language: Английский

Citations

5
Advances in Electrocatalytic Nitrate Reduction: Insights into Mechanisms and Reaction Optimization DOI
Haotian Tan,

Yunrui Tian,

Wei Peng

et al.

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

Published: Jan. 20, 2025

Abstract Electrocatalytic nitrate reduction (NO 3 RR) offers a promising approach to address pollution by converting harmful nitrates into environment‐benign or valuable products like nitrogen gas (N 2 ) ammonia (NH ). This review explores the mechanisms, challenges, and catalysts involved in NO RR, highlighting role of catalyst selectivity, stability, external reaction conditions. The discussion also covers environmental economic benefits RR for water treatment, alongside potential future directions scaling‐up, system integration, expanding research tackling related nitrogen‐based pollutants as well real world applications.

Language: Английский

Citations

0
Emerging Supported Metal Atomic Clusters for Electrocatalytic Renewable Conversions DOI
Hanqi Xu, Wenqi Zhao, Di Li

et al.

ACS Catalysis, Journal Year: 2025, Volume and Issue: unknown, P. 2434 - 2458

Published: Jan. 27, 2025

Subnanometric supported metal atomic clusters (SMACs) composed of several to tens surface atoms have attracted increased research interest in electrocatalysis. SMACs been known show distinct properties compared their nanoparticles and single atom counterparts long developed for functional improvements. Tremendous advancements made the past few years, with a notable trend more precise design down an atomic/molecular level investigation transferring into practical devices, which motivates this timely review. To begin, review presents classifies classic latest synthetic strategies state-of-the-art characterization techniques SMACs. It then outlines discusses basic structure principles SMACs, highlighting importance organic ligands, size effect clusters, support-cluster interactions determining catalytic activity device stability. Thereafter, recent advances typical electrocatalysis processes from laboratory scale industrial are discussed obtain general understanding structure–activity correlations Current challenges future perspectives emerging field also discussed, aiming at practicing SMAC catalysts energy conversion devices.

Language: Английский

Citations

0
Coordination Tailoring of Pt Single‐Atom Catalysts at Room Temperature and Their Exceptional Performance in Hydrogen Evolution Reaction DOI Creative Commons

Joo‐Won Lee,

H. U. Din,

Taehun Im

et al.

Carbon Energy, Journal Year: 2025, Volume and Issue: unknown

Published: March 19, 2025

ABSTRACT Single‐atom catalysts (SACs) have garnered interest in designing their ligand environments, facilitating the modification of single catalytic sites toward high activity and selectivity. Despite various synthetic approaches, it remains challenging to achieve a catalytically favorable coordination structure simultaneously with feasible formation SACs at low temperatures. Here, new type for Pt is introduced offer highly efficient hydrogen evolution reaction (HER) catalyst, where are readily fabricated by atomically confining PtCl 2 on chemically driven NO two‐dimensional nitrogen‐doped carbon nanosheets room temperature. The resultant form –Pt–Cl an atomic dispersion, as revealed X‐ray spectroscopy transmission electron microscopy investigations. Moreover, our first‐principles density functional theory (DFT) calculations show strong interactions computing binding energy charge difference between . SACs, established ‐functionalized support, demonstrate onset potential 25 mV, Tafel slope 40 mV dec −1 , specific 1.35 A mg Importantly, also exhibit long‐term stability up 110 h, which significant advance field single‐atom catalysts. newly developed features active center, providing ability comparable that Pt(111), enhanced durability due metal‐support interactions, advantage room‐temperature fabrication.

Language: Английский

Citations

0
Prussian blue derived sulfides and phosphates with hollow nanoflower-like morphology realizing significant improvement of electrocatalytic water splitting performance DOI

Qingqing Guo,

Qiao Jiang,

Tianyu Chen

et al.

Materials Today Chemistry, Journal Year: 2025, Volume and Issue: 45, P. 102666 - 102666

Published: March 28, 2025

Language: Английский

Citations

0
Direct Synthesis of Dual Mo-Based Functional Materials Derived from Molybdenite by Molten Salt Paired Electrolysis DOI
Rui Jiang, Bowen Deng, Huijun Liu

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: March 28, 2025

A facile synthesis process that facilitates the industrial-scale production of catalysts is prerequisite hydrogen evolution reaction (HER) industry. Molybdenum-based are ideal alternatives for precious-metal-based HER materials; however, they remain challenging in scale-up preparation due to costly and complex Mo sources. Herein, we propose a molten salt paired electrolysis approach synthesize transition-metal-doped Mo2C directly from molybdenite (mainly consisting micrometer-scale MoS2 bulks), an earth-abundant natural ore. Unlike Fe-doped which those transition metal dopants inclined diffuse into inner planes Mo2C, this unique leverages differences diffusion energy barriers, ultimately leading development Ni-doped catalytic materials with specific Ni-enriched interfaces. Owing design structures catalyst, interfacially exhibited promising performance long-term stability. Very interestingly, nanoflakes, as side products, can be collected at anode while was concurrently obtained cathode during electrolytic process. This work not only deepens our knowledge on constructing active-site-enriched interfaces beneficial but also gives clues upcycling raw materials.

Language: Английский

Citations

0