Pt-Ni nanourchins as electrocatalysts for oxygen reduction reaction Qiaowan CHANG, Yuan XU, Shangqian ZHU, Fei XIAO, Minhua SHAO 1 . Department of Chemical and Biomolecular Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China 2 . Department of Chemical and Biomolecular Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China; Energy Institute, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China Frontiers in Energy,2017,11(3),254-259.DOI:10.1007/s11708-017-0493-3