Embedding Tandem Built‐in Electric Fields within Hollow Architectures for Enhanced Photothermal Effect in Alcohol Oxidation Coupled with H2 Production DOI

Yi‐Wen Han,

Yuxin Zhang, Lei Ye

et al.

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

Published: April 1, 2025

Abstract Rationally designing nanostructures based on a comprehensive understanding of structure‐property relationships is instrumental in enhancing the photothermal effect. Here, general two‐stage morphology‐structure‐control strategy presented to construct tandem built‐in electric fields (BIEFs) embedded hollow bifunctional photocatalysts (Sv‐chalcogenide nanocage/NiCo 2 S 4 heterojunctions, Sv represents sulfur vacancies, chalcogenides include ZnIn , CdS, CdIn ). This involves fabricating polyhedral cages via constraint epitaxy and embedding BIEFs (consisting intra‐component inter‐component BIEF) within nanocages through defect‐mediated heterocomponent anchorage. The resulting nanoreactors synergize multilight scattering/reflection with directional charge‐transfer boost photocarrier dynamics by stimulating plentiful carrier generation driving continuous localization delocalized‐electron transportation. Subsequently, localized surface plasmon resonance (LSPR)‐induced photogenerated electron excitation continuously collaborates intrinsic for hot generation, thus improving Heterojunctions efficient regulation optimize pivotal intermediate adsorption/activation selective alcohol oxidation coupled H evolution, delivering unprecedented reactivity broad substrate compatibility. study provides programmable framework structurally architectures, elucidating substantial impact morphology‐structure control molecular catalytic behavior.

Language: Английский

Boosting Hydrogen Adsorption via Manipulating the d-Band Center of Ferroferric Oxide for Anion Exchange Membrane-Based Seawater Electrolysis DOI

Long Song,

Lili Guo,

Jiayu Mao

et al.

ACS Catalysis, Journal Year: 2024, Volume and Issue: 14(9), P. 6981 - 6991

Published: April 19, 2024

Ferroferric oxide-based electrocatalysts are widely applied as hydrogen evolution reaction (HER) catalysts due to their low cost and good electrical conductivity, but they tend exhibit slow adsorption kinetics for HER poison by corrosive Cl– alkaline seawater splitting. In this regard, we report a nanosheet-like catalyst constructed decorating Fe3O4 with Ru P dual doping (Ru/P–Fe3O4@IF). situ characterization density functional theory (DFT) calculations demonstrate that the resulting Ru/P–Fe3O4@IF shows enhanced strength coverage thermal neutral free energy of adsorbed H (ΔGH*) modulating d-band center Fe3O4. Moreover, Ru/P moving up center, weak makes on active sites be avoided in Benefiting from above, exhibits superior performance commercial Pt/C overpotentials only −46 −144 mV reach 100 1000 mA cm–2, respectively. addition, AEM electrolyzer assembled Ru/P–Fe3O4 requires 1.93 V (cell voltage) drive current 2 A cm–2 can maintain stable operation more than h at 500

Language: Английский

Citations

44
Enhancing Compatibility of Two‐Step Tandem Catalytic Nitrate Reduction to Ammonia Over P‐Cu/Co(OH)2 DOI

Qiuyu Yan,

Rundong Zhao, Lihong Yu

et al.

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

Published: Sept. 11, 2024

Abstract Electrochemical nitrate reduction reaction (NO 3 RR) is a promising approach to realize ammonia generation and wastewater treatment. However, the transformation from NO − NH involves multiple proton‐coupled electron transfer processes by‐products 2 , H etc.), making high selectivity challenge. Herein, two‐phase nanoflower P‐Cu/Co(OH) electrocatalyst consisting of P‐Cu clusters P‐Co(OH) nanosheets designed match two‐step tandem process ) more compatible, avoiding excessive accumulation optimizing whole reaction. Focusing on initial 2e process, inhibited * desorption Cu sites in gives rise appropriate released electrolyte. Subsequently, exhibits superior capacity for trapping transforming desorbed during latter 6e due thermodynamic advantage contributions active hydrogen. In 1 m KOH + 0.1 leads yield rate 42.63 mg h cm Faradaic efficiency 97.04% at −0.4 V versus reversible hydrogen electrode. Such well‐matched achieves remarkable synthesis performance perspective catalytic reaction, offering novel guideline design RR electrocatalysts.

Language: Английский

Citations

23
Atomic Gap-State Engineering of MoS2 for Alkaline Water and Seawater Splitting DOI
Tao Sun, Tong Yang, Wenjie Zang

et al.

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

Published: Jan. 11, 2025

Transition-metal dichalcogenides (TMDs), such as molybdenum disulfide (MoS2), have emerged a generation of nonprecious catalysts for the hydrogen evolution reaction (HER), largely due to their theoretical adsorption energy close that platinum. However, efforts activate basal planes TMDs primarily centered around strategies introducing numerous atomic vacancies, creating vacancy–heteroatom complexes, or applying significant strain, especially acidic media. These approaches, while potentially effective, present substantial challenges in practical large-scale deployment. Here, we report gap-state engineering strategy controlled activation S atom MoS2 through metal single-atom doping, effectively tackling both efficiency and stability alkaline water seawater splitting. A versatile synthetic methodology allows fabrication series single-metal atom-doped materials (M1/MoS2), featuring widely tunable densities with each dopant replacing Mo site. Among these (Mn1, Fe1, Co1, Ni1), Co1/MoS2 demonstrates outstanding HER performance media, overpotentials at mere 159 164 mV 100 mA cm–2, Tafel slopes 41 45 dec–1, respectively, which surpasses all reported TMD-based benchmark Pt/C during splitting, can be attributed an optimal modulation associated sulfur atoms. Experimental data correlating doping density identity performance, conjunction calculations, also reveal descriptor linked near-Fermi gap state modulation, corroborated by observed increase unoccupied 3p states.

Language: Английский

Citations

3
Synergistic flower-like N-doped Co/Mo2C catalyst for hydrogen evolution reaction in universal pH and high-performance alkaline water-splitting DOI

Hennayaka Mudiyanselage Charitha Madusanka Jayawardana,

Suci Meng,

Bashir Adegbemiga Yusuf

et al.

Materials Today Chemistry, Journal Year: 2025, Volume and Issue: 43, P. 102476 - 102476

Published: Jan. 1, 2025

Language: Английский

Citations

2
Exploring the properties, types, and performance of atomic site catalysts in electrochemical hydrogen evolution reactions DOI Creative Commons
M. Nur Hossain, Lei Zhang, Roberto Neagu

et al.

Chemical Society Reviews, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

This review investigates atomic site catalysts (ASCs) for electrochemical hydrogen evolution reaction (HER), discussing their properties, types, performance, significance, activity, selectivity, stability, challenges, and future research directions.

Language: Английский

Citations

2
Strong electronic coupling of NiCo2O4 and CeO2 regulates the nucleation and decomposition of Li2CO3 for high-rate performance Li–CO2 batteries DOI

Renshu Huang,

Zhixiang Zhai,

Xingfa Chen

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 489, P. 151191 - 151191

Published: April 10, 2024

Language: Английский

Citations

11
Synergistic dual built-in electric fields in 1T-MoS2/Ni3S2/LDH for efficient electrocatalytic overall water splitting reactions DOI
Weilong Liu,

Jipeng Dong,

Bohan An

et al.

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 673, P. 228 - 238

Published: June 11, 2024

Language: Английский

Citations

11
Rationally Designed Mo/Ru‐Based Multi‐Site Heterogeneous Electrocatalyst for Accelerated Alkaline Hydrogen Evolution Reaction DOI

Liqiang Hou,

Chuang Li, Haeseong Jang

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(48)

Published: Oct. 6, 2024

The rational design of multi-site electrocatalysts with three different functions for facile H

Language: Английский

Citations

10
Frank Partial Dislocation Pinning Effect Engineered IrNi Alloy Nanoparticles for Water Splitting DOI
Yunjie Liu, Yongbin Xu, Yu Tian

et al.

ACS Catalysis, Journal Year: 2025, Volume and Issue: unknown, P. 3378 - 3390

Published: Feb. 10, 2025

Language: Английский

Citations

1
Heterostructured Electrocatalysts: from Fundamental Microkinetic Model to Electron Configuration and Interfacial Reactive Microenvironment DOI Creative Commons
Yun Li, Md. Samim Hassan, Xin Zhao

et al.

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

Published: March 4, 2025

Electrocatalysts can efficiently convert earth-abundant simple molecules into high-value-added products. In this context, heterostructures, which are largely determined by the interface, have emerged as a pivotal architecture for enhancing activity of electrocatalysts. review, atomistic understanding heterostructured electrocatalysts is considered, focusing on reaction kinetic rate and electron configuration, gained from both empirical studies theoretical models. We start fundamentals microkinetic model, adsorption energy theory, electric double layer model. The importance heterostructures to accelerate electrochemical processes via modulating configuration interfacial reactive microenvironment highlighted, considering rectification, space charge region, built-in field, synergistic interactions, lattice strain, geometric effect. conclude review summarizing challenges perspectives in field electrocatalysts, such determination transition state energy, their dynamic evolution, refinement approaches, use machine learning.

Language: Английский

Citations

1