Preparation of porous flower-like SnO2 micronano structures and their enhanced gas sensing property》.pdfVIP

Journal of Alloys and Compounds 653 (2015) 611 e618 Contents lists available at ScienceDirect Journal of Alloys and Compounds journal homepage: http://www.elsevier .com/locate/jalcom Preparation of porous flower-like SnO2 micro/nano structures and their enhanced gas sensing property a, 1 b, 1 a c, ** a, * Haibo Ren , Wei Zhao , Liyou Wang , Si Ok Ryu , Cuiping Gu a College of Chemistry and Materials Science, Center for Nano Science and Technology, Anhui Normal University, Wuhu, Anhui 241000, PR China b School of Materials Science and Engineering, Yeungnam University, Gyeongsan, Gyeongbuk 712749, Republic of Korea c School of Chemical Engineering, Yeungnam University, Gyeongsan, Gyeongbuk 712749, Republic of Korea a r t i c l e i n f o a b s t r a c t Article history: Porous flower-like tin oxide (SnO ) structures were obtained using a hydrothermal method combined 2 Received 1 July 2015 with a subsequent calcination and acid-washing process. The morphologies and crystal structures of the Received in revised form products were characterized by field emission scanning electron microscopy, transmission electron 2 September 2015 microscopy, energy dispersive spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and Accepted 8 September 2015 BrunauereEmmetteTelle