Pt nanoparticles embedded metal-organic framework nanosheets: A synergistic strategy towards bifunctional oxygen electrocatalysis
Zhangxun Xia, Jian Fang, Xiaoming Zhang, Linpeng Fan, Anders J Barlow, Tong Lin, Suli Wang, Gordon G Wallace, Gongquan Sun, Xungai Wang
APPLIED CATALYSIS B-ENVIRONMENTAL | ELSEVIER SCIENCE BV | Published : 2019
To meet the increasing demands for highly active electrocatalysts towards oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), here in this work, a new strategy of synergistic nano-architecture design based on Platinum nanoparticles (Pt NPs) and ultrathin two-dimensional (2D) metal-organic frameworks (MOFs) is developed for bifunctional electrochemical catalysts. Compared with commercial Pt/C and RuO2 catalysts, remarkable enhancements in activity and durability of both oxygen reduction and oxygen evolution reactions are achieved on our PtNPs@MOFs composite materials, with one of the lowest over-potential gaps (Egap) of 665 mV that has ever been reported. The tests on the ass..View full abstract
Awarded by NSFC
Awarded by China Scholarship Council, CSC
This work was supported by Australian Research Council (ARC) through ARC Centre of Excellence for Electromaterials Science (ACES), Natural Science Foundation of China, NSFC (No. 21503228) and China Scholarship Council, CSC (No. 201604910130). Deakin University's Advanced Characterization Facility is acknowledged for use of the EM instrument and assistance from Dr. Pavel Cizek. This work was performed in part at the Australian National Fabrication Facility (ANFF), a company established under the National Collaborative Research Infrastructure Strategy, through the La Trobe University Centre for Materials and Surface Science.