Palladium decorated graphene-nanoribbon network for enhanced gas sensing

KURU C., Choi D., Choi C., Kim Y. J., Jin S.

Journal of Nanoscience and Nanotechnology, cilt.15, sa.3, ss.2464-2467, 2015 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 15 Sayı: 3
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1166/jnn.2015.9606
  • Dergi Adı: Journal of Nanoscience and Nanotechnology
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.2464-2467
  • Anahtar Kelimeler: Ammonia sensing, Graphene nanoribbon network
  • Bilecik Şeyh Edebali Üniversitesi Adresli: Evet

Özet

The fabrication of large-scale graphene nanoribbon (GNR) network and its application for gas sensing are reported. A large area, nanoscale GNR network was produced by a facile approach of silver nanowires (Ag NWs) templated graphene masking and subsequent O2 plasma etching. GNR network shows significantly enhanced sensitivity to ammonia gas compared to pristine graphene layer. The gas detection sensitivity of the nanoscale GNR network is even further improved by decorating GNR network with palladium (Pd) or platinum (Pt) nanoparticles, which show a relative resistance response of 65% and 45%, respectively to 50 ppm (parts per million) of ammonia (NH3) in nitrogen (N2) at room temperature as well as good reversibility in air.