A Review on Graphene-Based Gas/Vapor Sensors with Unique Properties and Potential Applications

Graphene-based gas/vapor sensors have attracted much attention in recent years due to their variety of structures, unique sensing performances, room-temperature working conditions, and tremendous application prospects, etc. Herein, we summarize recent advantages in graphene preparation, sensor construction, and sensing properties of various graphene-based gas/vapor sensors, such as NH 3 , NO 2 , H 2 , CO, SO 2 , H 2 S, as well as vapor of volatile organic compounds. The detection mechanisms pertaining to various gases are also discussed. In conclusion part, some existing problems which may hinder the sensor applications are presented. Several possible methods to solve these problems are proposed, for example,…

• NN
  National Natural Science Foundation of China

  Awards: 61574091, 21171117, NCET-12-0356, 2013CB932500
• SJ
  Shanghai Jiao Tong University

  Awards: 61574091, 21171117, Agri-X2015007
• PF
  Program for New Century Excellent Talents in University

  Award: NCET-12-0356
• NK
  National Key Research and Development Program of China

  Award: 2013CB932500
• PO
  Program of Shanghai Academic Research Leader

  Award: 15XD1525200
• PF
  Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning