title: Ultralong In2S3 Nanotubes on Graphene Substrate with Enhanced Electrocatalytic Activity.
abstract: Ultralong one-dimensional (1D) nanostructures including nanowires or nanotubes have been extensively studied because of their widespread applications in many fields. Although a lot of methods have been reported to prepare In2S3 nanotubes, approaching these nanotubes through one-pot solution synthesis is still extremely difficult, probably because of the intrinsic isotropic crystal growth characteristic of In2S3. In this article, we demonstrated a self-assembly approach for hydrothermal synthesis of In2S3 nanotubes/graphene composites, which contain ultralong (up to 10 μm) In2S3 nanotubes on graphene substrate. The influence of several important synthetic parameters on the final products has been systematically investigated. Importantly, the as-prepared In2S3 nanotubes/graphene composites can be easily cast on FTO to form a film, which can be used as a counter electrode. Our research indicates that the as-fabricated counter electrode exhibits excellent electrocatalytic activity toward the iodide species (I-/I3-) reduction reaction and very high energy conversion efficiency (8.01%) in dye-sensitized solar cells.
authors: Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University , Tianjin 300071, China.
authors: Sheng-qi
authors: SQ
authors: Guo
authors: Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University , Tianjin 300071, China.
authors: Xue
authors: X
authors: Chen
authors: State Key Laboratory and Institute of Elemento-Organic Chemistry, Nankai University , Tianjin 300071, China.
authors: Fang-zhong
authors: FZ
authors: Hu
authors: School of Materials Science and Engineering, Nanyang Technological University , Singapore 639798, Singapore.|Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University , Singapore 637371, Singapore.
authors: Qi-chun
authors: QC
authors: Zhang
authors: Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University , Tianjin 300071, China.
authors: Lu
authors: L
authors: Liu
keywords: In2S3; dye-sensitized solar cells; electrocatalytic activity; graphene; nanotube