Allying interfacial engineering of 2D carbon nanosheet‐, graphene‐, and graphdiyne‐based heterostructured electrocatalysts toward hydrogen evolution and overall water splitting

Author:

Mo Wuwei12,Foo Joel Jie12,Ong Wee‐Jun12345ORCID

Affiliation:

1. School of Energy and Chemical Engineering Xiamen University Malaysia Sepang Selangor Darul Ehsan Malaysia

2. Center of Excellence for NaNo Energy & Catalysis Technology (CONNECT) Xiamen University Malaysia Sepang Selangor Darul Ehsan Malaysia

3. State Key Laboratory of Physical Chemistry of Solid Surfaces College of Chemistry and Chemical Engineering Xiamen University Xiamen China

4. Gulei Innovation Institute Xiamen University Zhangzhou China

5. Shenzhen Research Institute of Xiamen University Shenzhen China

Abstract

AbstractElectrochemical hydrogen evolution reaction (HER) and overall water splitting (OWS) for renewable energy generation have recently become a highly promising and sustainable strategy to tackle energy crisis and global warming arising from our overreliance on fossil fuels. Previously, tremendous research breakthroughs have been made in 2D carbon‐based heterostructured electrocatalysts in this field. Such heterostructures are distinguished by their remarkable electrical conductivity, exposed active sites, and mechanical stability. Herein, with fundamental mechanisms of electrocatalytic OWS summarized, our review critically emphasized on state‐of‐the‐art 2D carbon nanosheet‐, graphene‐, and graphdiyne‐based heterostructured electrocatalysts in HER and OWS since 2018. Particularly, the three emerging carbonaceous substrates tend to be incorporated with metal carbides, phosphides, dichalcogenides, nitrides, oxides, nanoparticles, single atom catalysts, or layered double hydroxides. Meanwhile, fascinating structural engineering and facile synthesis strategies were also unraveled to establish the structure–activity relationship, which will enlighten future electrocatalyst developments toward ameliorated HER and OWS activities. Additionally, computational results from density functional theory simulations were highlighted as well to better comprehend the synergistic effects within the heterostructures. Finally, current stages and future recommendations of this brand‐new electrocatalyst type were concluded and discussed for advanced catalyst designs and future practical applications.

Funder

Kementerian Sains, Teknologi dan Inovasi

National Natural Science Foundation of China

Basic and Applied Basic Research Foundation of Guangdong Province

State Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen University

Publisher

Wiley

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