Fabrication of a novel 2D-graphene/2D-NiO nanosheet-based hybrid nanostructure and its use in highly sensitive NO 2 sensors
作者: Le Thuy HoaHuynh Ngoc TienVan Hoang LuanJin Suk ChungSeung Hyun Hur
作者单位: 1School of Chemical Engineering and Bioengineering, University of Ulsan, Daehak-ro 93, Nam-gu, Ulsan 680-749, Republic of Korea
刊名: Sensors & Actuators: B. Chemical, 2013, Vol.185 , pp.701-705
来源数据库: Elsevier Journal
DOI: 10.1016/j.snb.2013.05.050
关键词: NiO nanosheetsReduced graphene oxideNO 2 gas sensorsHybrid structures
原始语种摘要: Abstract(#br)A highly sensitive gas sensor based on novel hybrid structures composed of 2D graphene and 2D NiO nanosheets (NSs) is fabricated using a low-cost, low temperature and large area scalable solution-based process. The highly developed hierarchically porous structures of 2D NiO sheets are grown on reduced graphene oxide (RGO) surfaces. Sensors fabricated with hybrid structures showed a responsivity and sensitivity two orders higher than that of a NiO NS alone toward NO 2 even at 1ppm level. This is attributed to the effective carrier transfer from NiO NS to graphene and to the well-developed 2D NiO structure. The sensing results are similar when reducing gases such as H 2 , NH 3 and H 2 S are tested, but the responsivity toward NO 2 was highest among all the...
全文获取路径: Elsevier  (合作)
影响因子:3.535 (2012)

  • highly 高度地
  • hybrid 杂种
  • responsivity 响应度
  • attributed 属性
  • fabricated 制造
  • sensitive 灵敏的
  • toward 
  • scalable 修]可伸缩[缩放
  • composed 沉着的
  • novel 长篇小说