Three-dimensional graphene and its composite for gas sensors

• 作者: Meng Hao Wen Zeng Yan-Qiong Li Zhong-Chang Wang
• 来源期刊: 稀有金属（英文版）
• 年，卷（期）: 2021,（6）
• 所属期刊栏目: ADVANCED NANOMATERIALS FOR GAS AND HUMIDITY SENSORS
• 页码范围: 1494-1514
• 页数: 21页
• 语种: 英文

摘要

As a two-dimensional (2D) material,graphene shows excellent advantages in the field of gas sensors due to its inherent large specific surface area and unique elec-trical properties.However,in the practical application of gas detection,graphene sheet is easy to form irreversible agglomeration and has some limitations such as low sen-sitivity,long response time and slow recovery speed,which greatly reduce its gas sensing performance.As a gas sensing material,three-dimensional (3D) porous graphene has been extensively studied in recent years owing to its larger specific surface area and stable structure.In order to synthesize graphene with different three-dimensional structures,many methods have been developed.Herein,the synthesis and assembly of three-dimensional graphene and its composites were reviewed,with emphasis on the application of three-dimensional graphene and its com-posites in the field of gas sensors.The challenges and development prospects of three-dimensional graphene materials in the application of gas sensors were briefly described.