石墨烯基电催化剂的合成与燃料电池性能研究
|
摘要
如今,生物乙醇及清洁能源,如醇类燃料电池(DAFCs)作为绿色能源引起广泛社会关注。最为明显是在设计和开发有效的阳极催化材料方面。本文使用一步溶剂热法合成还原态氧化石墨烯(reduced graphene oxide,RGO)/二氧化钛二元复合催化剂(RGO/TiO_2),以氧化石墨和钛酸四丁酯作为前驱体。并通过紫外光还原法,以H_2PtCl_6·6H_2O为前驱体,将Pt纳米颗粒直接沉积在石墨烯和TiO_2的界面间,制备出RGO/TiO_2/Pt三元复合材料,并对产物的形貌和结构进行了深入的研究。RGO/TiO_2/Pt三元纳米复合材料有望比传统的铂催化剂和RGO/Pt具有更高的催化活性和稳定性。
Nowadays, bio ethanol and clean energy as a green energy, such as direct alcohol fuel cell(DAFCs), have attracted widespread social attention. The most obvious aspect is the design and development of effective anode catalytic materials. The reduced graphene oxide(reduced graphene oxide, RGO)/titanium dioxide two element composite catalyst(RGO/TiO_2) was synthesized by solvothermal method in this paper. And graphite oxide and four butyl titanate were used as precursors. By UV reduction, H_2PtCl_6·6H_2O was used as precursor to deposit Pt nanoparticles directly on the interface between graphene and TiO_2, and RGO/TiO_2/Pt three element composite was prepared. The morphology and structure of the products were studied. RGO/TiO_2/Pt three element nanoscale composite is expected to have higher catalytic activity and stability than traditional platinum catalysts and RGO/Pt.
Nowadays, bio ethanol and clean energy as a green energy, such as direct alcohol fuel cell(DAFCs), have attracted widespread social attention. The most obvious aspect is the design and development of effective anode catalytic materials. The reduced graphene oxide(reduced graphene oxide, RGO)/titanium dioxide two element composite catalyst(RGO/TiO_2) was synthesized by solvothermal method in this paper. And graphite oxide and four butyl titanate were used as precursors. By UV reduction, H_2PtCl_6·6H_2O was used as precursor to deposit Pt nanoparticles directly on the interface between graphene and TiO_2, and RGO/TiO_2/Pt three element composite was prepared. The morphology and structure of the products were studied. RGO/TiO_2/Pt three element nanoscale composite is expected to have higher catalytic activity and stability than traditional platinum catalysts and RGO/Pt.
引文
[1]周卫,张开富,潘凯,曲阳,王蕾,田国辉,蒋保江,任志宇,李明霞,付宏刚.高热稳定性多孔二氧化钛/石墨烯复合体的制备与光催化性能研究[J].中国科技论文,2014(12).
[2]潘登科,谢亚楠,刘志坤,耿莉,宋盼.石墨烯在微波至可见光波段的电磁特性[J].中国科技论文,2015(18).
[3]刘雪楠,邓超,高颖,邬冰.石墨烯的制备及石墨烯载Pd催化剂对甲酸的电催化氧化[J].燃料化学学报,2014(04).
[4]蔡志雄,王翊如,陈曦.石墨烯-贵金属纳米复合材料在小分子电分析及电催化中的应用[J].厦门大学学报(自然科学版),2014(05).
[5]安玲玲,常颖萃,杜江燕.三维有序石墨烯掺杂纳米二氧化钛酶生物传感器[J].应用化学,2013(02).
[6]杨俊松,张晖,王腾,张胜义.水热体系下二氧化钛与氧化石墨烯复合纳米晶的合成[J].中山大学学报(自然科学版),2013(01).
[7]李立清,石瑞,顾庆伟,梁鑫,姚小龙,马卫武.改性活性炭吸附二氯乙烷性能[J].中南大学学报(自然科学版),2013(04).
[8]关鲁雄,李家元,王婷,李娟,钟文毅.掺杂铜和钒的纳米二氧化钛的光催化性能[J].中南大学学报(自然科学版),2006(04).
[9]陈先学,卢建树,王丽娜,周颖.醇类燃料电池电催化剂的研究进展[J].电池工业,2004(01).
[2]潘登科,谢亚楠,刘志坤,耿莉,宋盼.石墨烯在微波至可见光波段的电磁特性[J].中国科技论文,2015(18).
[3]刘雪楠,邓超,高颖,邬冰.石墨烯的制备及石墨烯载Pd催化剂对甲酸的电催化氧化[J].燃料化学学报,2014(04).
[4]蔡志雄,王翊如,陈曦.石墨烯-贵金属纳米复合材料在小分子电分析及电催化中的应用[J].厦门大学学报(自然科学版),2014(05).
[5]安玲玲,常颖萃,杜江燕.三维有序石墨烯掺杂纳米二氧化钛酶生物传感器[J].应用化学,2013(02).
[6]杨俊松,张晖,王腾,张胜义.水热体系下二氧化钛与氧化石墨烯复合纳米晶的合成[J].中山大学学报(自然科学版),2013(01).
[7]李立清,石瑞,顾庆伟,梁鑫,姚小龙,马卫武.改性活性炭吸附二氯乙烷性能[J].中南大学学报(自然科学版),2013(04).
[8]关鲁雄,李家元,王婷,李娟,钟文毅.掺杂铜和钒的纳米二氧化钛的光催化性能[J].中南大学学报(自然科学版),2006(04).
[9]陈先学,卢建树,王丽娜,周颖.醇类燃料电池电催化剂的研究进展[J].电池工业,2004(01).