铂/二氧化锡/石墨烯复合催化剂的制备及其催化甲醇氧化性能
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摘要
以氯化亚锡和氧化石墨烯为前驱物制备了二氧化锡/石墨烯复合材料,并以其为载体担载了铂纳米颗粒催化剂,从而制备出铂/二氧化锡/石墨烯复合催化剂。所制备的铂纳米颗粒具有面心立方结构,二氧化锡是四方晶型;所制备催化剂的活性和抗中毒能力优于商业催化剂。
In this paper, stannous chloride and graphene oxide are employed as precursors to prepare SnO_2/graphene composite. The as-prepared composite is used as support for Pt nanoparticles to prepare Pt/SnO_2/graphene composite catalyst. The structure of as-prepared Pt nanoparticles is face-centred cubic and that of SnO_2 is tetragonal. Both the CO poisoning resistance and electro-catalytic activity of the as-prepared catalyst are superior to commercial catalyst.
In this paper, stannous chloride and graphene oxide are employed as precursors to prepare SnO_2/graphene composite. The as-prepared composite is used as support for Pt nanoparticles to prepare Pt/SnO_2/graphene composite catalyst. The structure of as-prepared Pt nanoparticles is face-centred cubic and that of SnO_2 is tetragonal. Both the CO poisoning resistance and electro-catalytic activity of the as-prepared catalyst are superior to commercial catalyst.
引文
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[2]Huang H,Liu Y,Gao Q,et al.Rational construction of strongly coupled metal-metal oxide-graphene nanostructure with excellent electrocatalytic activity and durability[J].ACS Appl Mater Interfaces,2014,6:10258-10264.
[3]Justin P,Rao G R.Enhanced activity of methanol electro-oxidation on Pt-V2O5/C catalysts.Catal Today,2009,141(1-2):15:138-143.
[4]Li L,Qian Y,Yang J,et al.A novel structural design of hybrid nanotube with CNTs and Ce O2 supported Pt nanoparticles with improved performance for methanol electro-oxidation[J].Int J.Hydrogen Energ,2016,41(22):9284-9294.
[5]Abdel Hameed R M,Amin R S,El-Khatib K M,et al.Preparation and characterization of Pt-Ce O2/C and Pt-Ti O2/C electrocatalysts with improved electrocatalytic activity for methanol oxidation[J].Appl Surf Sci,2016,367:382-390.
[6]Da Chen,Longhua Tang,Jinghong Li.Graphene-based materials in electrochemistry[J].Chem Soc Rev,2010,39:3157-3180.
[7]Luo B,Xu S,Yan X,et al.Pt Ni alloy nanoparticles supported on polyelectrolyte functionalized graphene as effective electrocatalysts for methanol oxidation[J].J Electrochem Soc,2013,160(3):F262-F268.
[8]Luo B,Yan X,Xu S,et al.Synthesis of worm-like Pt Co nanotubes for methanol oxidation[J].Electrochem Commu,2013,30:71-74.