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Wrinkled reduced graphene oxide nanosheets for highly sensitive and easy recoverable NH₃ gas detector
- Zhang, Su, Zhang, Di, Sysoev, Vitaly I., Sedelnikova, Olga V., Asanov, Igor P., Katkov, Mikhail V., Song, Huaihe, Okotrub, Alexander V., Bulusheva, Lyubov G., Chen, Xiaohong
- RSC advances 2014 v.4 no.87 pp. 46930-46933
- ammonia, energy, graphene, graphene oxide, nanosheets
- Highly wrinkled reduced graphene oxide nanosheets were prepared by chemical exfoliation from ball-milled graphite powder. This wrinkled graphene nanosheets showed higher sensitivity and simpler recovery ability than the flat reduced graphene oxide nanosheets when used as the NH₃ gas detector. According to both experimental analysis and theoretical calculation, the favourable sensing properties were attributed to a specific curved structure which allowed a stronger energy change in the response process and a free diffusion space for sensor recovery.