Feng Yi-Ge, Niu Hua-Jie, Mei Li-Ping, Feng Jiu-Ju, Fang Ke-Ming, Wang Ai-Jun
Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China.
Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China.
J Colloid Interface Sci. 2020 Sep 1;575:425-432. doi: 10.1016/j.jcis.2020.04.120. Epub 2020 Apr 30.
Developing efficient and stable electrocatalysts with three-dimensional (3D) hierarchical nanostructures is extremely important in practical applications of direct alcohol fuel cells. Herein, 3D hierarchical thorn-like multi-metallic PtPdNiCu alloyed nanotripods (PtPdNiCu TNTPs) were efficiently fabricated by a one-pot aqueous method, in which Pluronic F127 performed as the structure-director and dispersing agent. The as-prepared PtPdNiCu TNTPs exhibited distinct electrocatalytic activity for methanol oxidation reaction (MOR) with a mass activity (MA) of 1.465 A mg, which is superior to commercial Pt/C (0.925 A mg) in 1.0 M KOH solution, along with the greater MA (1.019 A mg) for ethanol oxidation reaction (EOR) than Pt/C (0.712 A mg). This work would provide an impetus for rationally constructing multimetal nanomaterials to commercial implementation of advanced alcohol fuel cells.
开发具有三维（3D）分级纳米结构的高效稳定电催化剂在直接醇类燃料电池的实际应用中极为重要。在此，通过一锅水相法高效制备了3D分级刺状多金属PtPdNiCu合金纳米三脚架（PtPdNiCu TNTPs），其中Pluronic F127作为结构导向剂和分散剂。所制备的PtPdNiCu TNTPs对甲醇氧化反应（MOR）表现出显著的电催化活性，在1.0 M KOH溶液中的质量活性（MA）为1.465 A mg，优于商业Pt/C（0.925 A mg），并且对乙醇氧化反应（EOR）的MA（1.019 A mg）也高于Pt/C（0.712 A mg）。这项工作将为合理构建多金属纳米材料以推动先进醇类燃料电池的商业应用提供动力。
