Reversing the Interfacial Electric Field in Metal Phosphide Heterojunction by Fe‐Doping for Large‐Current Oxygen Evolution Reaction DOI Creative Commons
Zhong Li,

Chengshuang Xu,

Zheye Zhang

et al.

Advanced Science, Journal Year: 2024, Volume and Issue: 11(21)

Published: April 8, 2024

Abstract Developing non‐precious‐metal electrocatalysts that can operate with a low overpotential at high current density for industrial application is challenging. Heterogeneous bimetallic phosphides have attracted much interest. Despite hydrogen evolution reaction (HER) performance, the ordinary oxygen (OER) performance hinders their practical use. Herein, it shown Fe‐doping reverses and enlarges interfacial electrical field heterojunction, turning H intermediate favorable binding sites HER into O OER. Specifically, self‐supported heterojunction catalysts on nickel foam (CoP@Ni 2 P/NF Fe‐CoP@Fe‐Ni P/NF) are readily synthesized. They only require overpotentials of 266 274 mV to drive large 1000 mA cm −2 ( j ) OER, respectively. Furthermore, water splitting cell equipped these electrodes requires voltage 1.724 V excellent durability, demonstrating potential application. This work offers new insights engineering catalysts.

Language: Английский

High valence metals engineering strategies of Fe/Co/Ni-based catalysts for boosted OER electrocatalysis DOI
Lu Li,

Xianjun Cao,

Juanjuan Huo

et al.

Journal of Energy Chemistry, Journal Year: 2022, Volume and Issue: 76, P. 195 - 213

Published: Sept. 16, 2022

Language: Английский

Citations

252
Bifunctional Electrocatalysts for Overall and Hybrid Water Splitting DOI
Quan Li, Hui Jiang,

Guoliang Mei

et al.

Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(7), P. 3694 - 3812

Published: March 22, 2024

Electrocatalytic water splitting driven by renewable electricity has been recognized as a promising approach for green hydrogen production. Different from conventional strategies in developing electrocatalysts the two half-reactions of (e.g., and oxygen evolution reactions, HER OER) separately, there growing interest designing bifunctional electrocatalysts, which are able to catalyze both OER. In addition, considering high overpotentials required OER while limited value produced oxygen, is another rapidly exploring alternative oxidation reactions replace hybrid toward energy-efficient generation. This Review begins with an introduction on fundamental aspects splitting, followed thorough discussion various physicochemical characterization techniques that frequently employed probing active sites, emphasis reconstruction during redox electrolysis. The design, synthesis, performance diverse based noble metals, nonprecious metal-free nanocarbons, overall acidic alkaline electrolytes, thoroughly summarized compared. Next, their application also presented, wherein anodic include sacrificing agents oxidation, pollutants oxidative degradation, organics upgrading. Finally, concise statement current challenges future opportunities presented hope guiding endeavors quest sustainable

Language: Английский

Citations

229
Fundamental Understanding of Structural Reconstruction Behaviors in Oxygen Evolution Reaction Electrocatalysts DOI Creative Commons
Haoyin Zhong, Qi Zhang, Junchen Yu

et al.

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(31)

Published: June 29, 2023

Abstract Transition metal‐based oxyhydroxides (MOOH) derived from the irreversible structural reconstruction of precatalysts are often acknowledged as real catalytic species for oxygen evolution reaction (OER). Typically, reconstruction‐derived MOOH would exhibit superior OER activity compared to their directly synthesized counterparts, despite being fundamentally similar in chemistry. As such, has emerged a promising strategy boost electrocatalysts. However, in‐depth understanding origin reconstructed materials still remains ambiguous, which significantly hinders further developments highly efficient electrocatalysts based on In this review, comprehensive overview behaviors reported is provided and intrinsic chemical origins high efficiency toward unveiled. The fundamentals mechanisms, along with recommended characterization techniques dynamic process analyzing structure also interpreted. Finally, view chemistry, potential perspectives facilitate design synthesis durable electrocatalyst presented.

Language: Английский

Citations

151
Facet Engineering of Advanced Electrocatalysts Toward Hydrogen/Oxygen Evolution Reactions DOI Creative Commons
Changshui Wang, Qian Zhang, Bing Yan

et al.

Nano-Micro Letters, Journal Year: 2023, Volume and Issue: 15(1)

Published: Feb. 16, 2023

The electrocatalytic water splitting technology can generate high-purity hydrogen without emitting carbon dioxide, which is in favor of relieving environmental pollution and energy crisis achieving neutrality. Electrocatalysts effectively reduce the reaction barrier increase efficiency. Facet engineering considered as a promising strategy controlling ratio desired crystal planes on surface. Owing to anisotropy, with different orientations usually feature facet-dependent physical chemical properties, leading differences adsorption energies oxygen or intermediates, thus exhibit varied activity toward evolution (HER) (OER). In this review, brief introduction basic concepts, fundamental understanding mechanisms well key evaluating parameters for both HER OER are provided. formation facets comprehensively overviewed aiming give scientific theory guides realize dominant planes. Subsequently, three strategies selective capping agent, etching coordination modulation tune summarized. Then, we present an overview significant contributions facet-engineered catalysts HER, OER, overall splitting. particular, highlight that density functional calculations play indispensable role unveiling structure–activity correlation between plane catalytic activity. Finally, remaining challenges provided future prospects designing advanced electrocatalysts discussed.

Language: Английский

Citations

150
Recent Progress of Amorphous Nanomaterials DOI
Jianxin Kang, Xiuyi Yang, Qi Hu

et al.

Chemical Reviews, Journal Year: 2023, Volume and Issue: 123(13), P. 8859 - 8941

Published: June 26, 2023

Amorphous materials are metastable solids with only short-range order at the atomic scale, which results from local intermolecular chemical bonding. The lack of long-range typical crystals endows amorphous nanomaterials unconventional and intriguing structural features, such as isotropic environments, abundant surface dangling bonds, highly unsaturated coordination, etc. Because these features ensuing modulation in electronic properties, display potential for practical applications different areas. Motivated by elements, here we provide an overview unique general synthetic methods, covered contemporary research nanomaterials. Furthermore, discussed possible theoretical mechanism nanomaterials, examining how properties configurations contribute to their exceptional performance. In particular, benefits well enhanced electrocatalytic, optical, mechanical thereby clarifying structure–function relationships, highlighted. Finally, a perspective on preparation utilization establish mature systems superior hierarchy various is introduced, outlook future challenges opportunities frontiers this rapidly advancing field proposed.

Language: Английский

Citations

123
Multicomponent transition metal oxides and (oxy)hydroxides for oxygen evolution DOI

Jingyi Han,

Jingqi Guan

Nano Research, Journal Year: 2022, Volume and Issue: 16(2), P. 1913 - 1966

Published: Oct. 2, 2022

Language: Английский

Citations

118
Surface reconstruction-derived heterostructures for electrochemical water splitting DOI

Xu Luo,

Xin Tan, Pengxia Ji

et al.

EnergyChem, Journal Year: 2022, Volume and Issue: 5(2), P. 100091 - 100091

Published: Sept. 6, 2022

Language: Английский

Citations

102
Adjustable heterointerface-vacancy enhancement effect in RuO2@Co3O4 electrocatalysts for efficient overall water splitting DOI
Yong Jiang, Hao Liu, Yimin Jiang

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2022, Volume and Issue: 324, P. 122294 - 122294

Published: Dec. 12, 2022

Language: Английский

Citations

85
A Kinetic Control Strategy for One‐Pot Synthesis of Efficient Bimetallic Metal‐Organic Framework/Layered Double Hydroxide Heterojunction Oxygen Evolution Electrocatalysts DOI

Guomei Mu,

Guangzhao Wang,

Qiuping Huang

et al.

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(13)

Published: Jan. 29, 2023

Abstract Heterojunction materials are promising candidates for oxygen evolution reaction (OER) electrocatalysts to break the linear scaling relationship and lower barrier. However, application of heterojunction is always hindered by complicated multistep synthetic procedures which bring cost, complexity, reproducibility issues. Herein, a strategy kinetic controlled synthesis developed achieve one‐pot formation bimetallic metal‐organic framework (MOF)/layered double hydroxide (LDH) electrodes as highly efficient OER electrocatalysts. The present hierarchical structures with porous NiFe‐LDH nanosheet networks vertically grown on surface NiFe‐MOF‐74 microprisms, promoting fast mass transport high exposure active sites. strong interactions at MOF/LDH interfaces contribute outstanding activity surpassing state‐of‐art RuO 2 catalysts. electrode exhibits an ultralow overpotential only 159.7 mV reach current density 10 mA cm −2 , yields large densities small (100 230.2 1000 284.3 mV) long‐term durability. This study presents innovative approach construct simple one‐step synthesis, offering pathway high‐efficiency electrocatalyst development.

Language: Английский

Citations

75
Designing electrocatalysts for seawater splitting: surface/interface engineering toward enhanced electrocatalytic performance DOI
Bo Xu, Jie Liang, Xuping Sun

et al.

Green Chemistry, Journal Year: 2023, Volume and Issue: 25(10), P. 3767 - 3790

Published: Jan. 1, 2023

Schematic illustration of interface/surface engineering strategies with various effective approaches for high-performance HER/OER electrocatalysts in seawater.

Language: Английский

Citations

65