[New J. Chem.] Air/Water Interfacial Growth of Pt Nanothorns in-situ Anchored on Macroscopic Freestanding CNT Thin Film for Efficient Methanol Oxidation
作者：Wei Zhang, Lei Zhang, Gui Zhang, Peng Xiao, Youju Huang, Min Qiang,* Tao Chen*
關鍵字：CNT thin film, self-assembly
論文來源：期刊
具體來源：New Journal of Chemistry, 2019, 43, 6063--6068
發(fā)表時間：2019年
As one widely used anode electrocatalyst for alcohol oxidation, Pt nanoparticle has been paid much attention to improve its catalysis properties by tuning the sizes, morphologies, and components. One-dimensional (1D) Pt nanostructures possess of sufficient active crystal lattices and interfacial electron transfer pathway, usually showing excellent catalytic properties. At present, there are still large challenges on the controllable synthesis of 1D Pt nanostructures and effectively loading on appropriate supporters, which limit the practical catalytic performances of Pt nanoparticles. Herein, one-dimensional Pt anothorns (NTs) with about 5.9 nm diameter are synthesized via a unique air/water interfacial process and in-situ anchored densely on the surface of the supported carbon nanotubes (CNTs). The resultant macroscopic freestanding CNTs/PtNTs hybrid film with sufficient active sites and large electrochemical active surface area of 190.5 cm2/mg exhibits efficient electrocatalytic ability for methanol oxidation. This interfacial fabrication strategy provides a simple and effective means to prepare PtNTs composite with high catalytic activity and stability, showing good potential for the application of flexible alcohol fuel cells.