Rapid low-temperature synthesis of perovskite/carbon nanocomposites as superior electrocatalysts for oxygen reduction in Zn-air batteries
作者: Zhenhua YanHongming SunXiang ChenXiaorui FuChengcheng ChenFangyi ChengJun Chen
作者单位: 1Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University
2Collaborative Innovation Center of Chemical Science and Engineering, Nankai University
刊名: Nano Research, 2018, Vol.11 (6), pp.3282-3293
来源数据库: Springer Nature Journal
DOI: 10.1007/s12274-017-1869-8
关键词: Perovskite oxideNanocompositeElectrocatalysisOxygen reductionZn-air batteries
英文摘要: Abstract(#br)The conventional ceramic synthesis of perovskite oxides involves extended high-temperature annealing in air and is unfavorable to the in situ hybridization of the conductive agent, thus resulting in large particle sizes, low surface area and limited electrochemical activities. Here we report a rapid gel auto-combustion approach for the synthesis of a perovskite/carbon hybrid at a low temperature of 180 °C. The energy-saving synthetic strategy allows the formation of small and homogeneously dispersed La x MnO 3±δ /C nanocomposites. Remarkably, the synthesized La 0.99 MnO 3.03 /C nanocomposite exhibits comparable oxygen reduction reaction (ORR) activity (with onset and peak potentials of 0.97 and 0.88 V, respectively) to the benchmark Pt/C due to the facilitated charge...
全文获取路径: Springer Nature  (合作)
影响因子:7.392 (2012)