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Three-Dimensional Graphene-Based Macrostructures for Electrocatalysis.

Huijuan Cui¹, Yibo Guo¹, Zhen Zhou^1,2

¹School of Materials Science and Engineering, Institute of New Energy Material Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin, 300350, P. R. China.

Small (Weinheim an Der Bergstrasse, Germany)

|March 18, 2021

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Three-dimensional graphene macrostructures (3D GMs) offer enhanced electrocatalysis for energy solutions. Their unique structure boosts performance in reactions like oxygen reduction and hydrogen evolution.

Area of Science:

Materials Science
Electrochemistry
Nanotechnology

Background:

Electrochemical energy storage and conversion are crucial for addressing energy and environmental challenges.
Sluggish reaction kinetics hinder the practical application of electrochemical devices.
Developing high-efficiency electrocatalysts is essential for improving performance.

Purpose of the Study:

To review the latest advancements in three-dimensional graphene macrostructures (3D GMs) for electrocatalysis.
To discuss preparation methods and functional modification strategies for 3D GMs.
To analyze the electrocatalytic performance of 3D GMs in various reactions.

Main Methods:

Preparation of 3D graphene macrostructures.
Functional modification of 3D GMs.

Keywords:

carbon dioxide electroreduction electrocatalysis graphene macrostructures hydrogen evolution oxygen electrocatalysis

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Electrocatalytic performance evaluation.

Main Results:

3D GMs exhibit large accessible surface areas and numerous active sites.
Their unique structure facilitates rapid mass and electron transport.
3D GMs show promising performance in oxygen reduction, oxygen evolution, hydrogen evolution, and carbon dioxide reduction reactions.

Conclusions:

3D GMs are highly promising electrocatalysts due to their unique structural advantages.
Further research into functional modification and application is warranted.
3D GMs offer a pathway to enhanced electrochemical energy storage and conversion systems.