Non-noble Metal Electrocatalysts for the Hydrogen Evolution Reaction in Water Electrolysis

Wu, Huimin; Feng, Chuanqi; Zhang, Lei; Zhang, Jiujun; Wilkinson, David P.

doi:10.1007/s41918-020-00086-z

Cited by 259 publications

(142 citation statements)

References 137 publications

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“…Along with the depletion of conventional fossil fuels and global warming issue because of the increasing carbon dioxide emissions, major concerns about the energy future have triggered the research community to search a clean and sustainable fuel‐combustion technology from fossil‐free pathways. [ 1 , 2 , 3 , 4 , 5 ] Particularly, hydrogen has been identified as an ideal alternative energy fuel as its combustion product is only water. Water electrolysis is considered as one of the promising and zero‐carbon‐emitting strategies for hydrogen production compared to the traditional steam reforming or coal gasification based on the reactions between fossil fuel and steam.…”

Section: Introductionmentioning

confidence: 99%

Design and Synthesis of Hollow Nanostructures for Electrochemical Water Splitting

et al. 2022

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Electrocatalytic water splitting using renewable energy is widely considered as a clean and sustainable way to produce hydrogen as an ideal energy fuel for the future. Electrocatalysts are indispensable elements for large‐scale water electrolysis, which can efficiently accelerate electrochemical reactions occurring at both ends. Benefitting from high specific surface area, well‐defined void space, and tunable chemical compositions, hollow nanostructures can be applied as promising candidates of direct electrocatalysts or supports for loading internal or external electrocatalysts. Herein, some recent progress in the structural design of micro‐/nanostructured hollow materials as advanced electrocatalysts for water splitting is summarized. First, the design principles and corresponding strategies toward highly effective hollow electrocatalysts for oxygen/hydrogen evolution reactions are highlighted. Afterward, an overview of current reports about hollow electrocatalysts with diverse architectural designs and functionalities is given, including direct hollow electrocatalysts with single‐shelled, multi‐shelled, or open features and heterostructured electrocatalysts based on hollow hosts. Finally, some future research directions of hollow electrocatalysts for water splitting are discussed based on personal perspectives.

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Section: Introductionmentioning

confidence: 99%

Design and Synthesis of Hollow Nanostructures for Electrochemical Water Splitting

et al. 2022

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“…[16][17][18][19][20][21] However, the scarcity and high-cost of noble metals are the major obstacles for their practical application in largescale processes. [22][23][24] Therefore, exploiting more cost-effective electrocatalysts with both high catalytic activity and stability is a necessary topic in order to produce hydrogen in a large scale.…”

Section: Introductionmentioning

confidence: 99%

Layered FeCoNi double hydroxides with tailored surface electronic configurations induced by oxygen and unsaturated metal vacancies for boosting the overall water splitting process

Zhai

Zhang

2022

Nanoscale

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“…In recent years, transition metal-based catalysts have attracted much interest because of their excellent catalytic activity. Examples of such transition metal-based catalysts include the following: oxides [18], hydroxides [19], sulfides [20], selenides [21], phosphides [22], nitrides [23], and carbides [24]. Among them, NiFe-based materials, especially NiFe-LDH, have been regarded as the most promising alternative electrocatalysts to IrO 2 and RuO 2 toward the OER due to its high activity and abundance on earth [25].…”

Section: Introductionmentioning

confidence: 99%

Amorphous heterogeneous NiFe-LDH@Co(OH)2 supported on nickel foam as efficient OER electrocatalysts

Yang

Zhou

Jiao

et al. 2021

Ionics

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Oxygen evolution reaction (OER) is considered as the bottleneck of electrochemical water splitting because of its sluggish kinetics. Therefore, the design and synthesis of highly active, low-cost, and stable electrocatalysts for the OER is the greatest challenge in electrochemical water splitting. Here, an amorphous heterogeneous NiFe-LDH@Co(OH) 2 @NF with abundant active sites is fabricated by a step-wise electrodeposition technique. Firstly, Co(OH) 2 is directly deposited onto nickel foam (NF) substrate by a electrodeposition technique. Secondly, NiFe-layered double hydroxide (NiFe-LDH) is further covered on the surface of Co(OH) 2 to obtain the heterogeneous NiFe-LDH@Co(OH) 2 @NF electrocatalyst. The thickness of NiFe-LDH can be controlled by changing the time of electrochemical deposition. Benefiting from the amorphous structure and the positive synergies between NiFe-LDH and Co(OH) 2 , the optimized NiFe-LDH@Co(OH) 2 @NF-300 shows high electrocatalysis activity. In the 1 M KOH solution, the overpotential for OER is only 130 mV (at 10 mA cm −2 ). Remarkably, serving as a bifunctional electrode in alkaline electrolyzer, it only needs 1.6 V to reach the current density of 10 mA cm −2 . The work provides a simple and viable technical solution for fabricating non-noble electrocatalysts with excellent performance for electrochemical water splitting.

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Non-noble Metal Electrocatalysts for the Hydrogen Evolution Reaction in Water Electrolysis

Cited by 259 publications

References 137 publications

Design and Synthesis of Hollow Nanostructures for Electrochemical Water Splitting

Design and Synthesis of Hollow Nanostructures for Electrochemical Water Splitting

Layered FeCoNi double hydroxides with tailored surface electronic configurations induced by oxygen and unsaturated metal vacancies for boosting the overall water splitting process

Amorphous heterogeneous NiFe-LDH@Co(OH)2 supported on nickel foam as efficient OER electrocatalysts

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