负载纳米Pt的生物质氮掺杂碳材料用于甲醇催化性能研究
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摘要
天然蚕茧经氨水溶液处理后,煅烧得到氮掺杂生物质碳材料,SEM电镜下观察其具有丰富而复杂的类石墨烯多孔结构.之后通过乙二醇还原氯铂酸钾得到负载Pt纳米粒子的生物质氮掺杂碳材料催化剂.对合成材料进行XRD、XPS、SEM等结构表征及电化学性能测试,结果显示该复合材料在酸性甲醇溶液中具有较好的甲醇催化性能和稳定性.
Natural cocoon was changed into biomass nitrogen-doped carbon material after being treated with ammonia water solution followed by calcination,which exhibit rich and complex graphene-like porous structure by SEM observation.Ptbased biomass nitrogen-doped carbon catalyst was obtained by the ethylene glycol reduction of K2 PtCl6.The structure and performance of the catalyst were characterized by XRD,SEM,XPS and electrochemical testing.Results showed that the catalyst showed better catalytic methanol stability in acidic methanol solution.
Natural cocoon was changed into biomass nitrogen-doped carbon material after being treated with ammonia water solution followed by calcination,which exhibit rich and complex graphene-like porous structure by SEM observation.Ptbased biomass nitrogen-doped carbon catalyst was obtained by the ethylene glycol reduction of K2 PtCl6.The structure and performance of the catalyst were characterized by XRD,SEM,XPS and electrochemical testing.Results showed that the catalyst showed better catalytic methanol stability in acidic methanol solution.
引文
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[6]Wang S,Cocell T,Manthiram A.Boron-doped carbon nanotube-supported Pt nanoparticles with improved CO tolerance for methanol electro-oxidation[J].Phys Chem Chem Phys,2012,14(40):13910-3.
[7]Zadick A,Dubau L,Sergent N,et al.Huge Instability of Pt/C Catalysts in Alkaline Medium[J].ACS Catalysis,2015,5(8):4819-4824.
[8]Liu W J,Jiang H,Yu H Q.Development of Biochar-Based Functional Materials:Toward a Sustainable Platform Carbon Material[J].Chem Rev,2015,115(22):12251-85.
[9]Sun Y R,Du C Y,An M C,et al.Boron-doped graphene as promising support for platinum catalyst with superior activity towards the methanol electrooxidation reaction[J].Journal of Power Sources,2015,300:245-253.
[10]Li D,Chen Y L,Zheng M,et al.Hierarchically Structured Porous Nitrogen-Doped Carbon for Highly Selective CO2 Capture[J].ACS Sustainable Chemistry&Engineering,2015,4(1):298-304.
[11]Sui S,Wang X Y,Zhou X T,et al.A comprehensive review of Pt electrocatalysts for the oxygen reduction reaction:Nanostructure,activity,mechanism and carbon support in PEM fuel cells[J].Journal of Materials Chemistry A,2017,5:1808-1825.
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[13]Qian Y,Liu Z,Zhang H,et al.Active Site Structures in Nitrogen-Doped Carbon-Supported Cobalt Catalysts for the Oxygen Reduction Reaction[J].ACS Appl Mater Interfaces,2016,8(48):32875-32886.
[14]Frita E,Barros V,Brenda R,et al.Pt/C containing different platinum loadings for use as electrocatalysts in alkaline PBI-based direct glycerol fuel cells[J].International Journal of Hydrogen Energy,2017,42(36):23095-23106.
[15]郝燕,王元宝,贾志超,等.多级孔TiO2担载金钯纳米催化剂在CO氧化反应的应用[J].河南师范大学学报(自然科学版),2018,46(4):55-59.
[16]Ye D X,Wang L,Zhang R,et al.Facile preparation of N-doped mesocellular graphene foam from sludge flocs for highly efficient oxygen reduction reaction[J].Journal of Materials Chemistry A,2015,3(29):15171-15176.