Porous dendritic PtRuPd nanospheres with enhanced catalytic activity and durability for ethylene glycol oxidation and oxygen reduction reactions

Jiao-Jiao Duan; Xiao-Xuan Zheng; Hua-Jie Niu; Jiu-Ju Feng; Qian-Li Zhang; Hong Huang; Ai-Jun Wang

doi:10.1016/j.jcis.2019.10.082

Porous dendritic PtRuPd nanospheres with enhanced catalytic activity and durability for ethylene glycol oxidation and oxygen reduction reactions

J Colloid Interface Sci. 2020 Feb 15:560:467-474. doi: 10.1016/j.jcis.2019.10.082. Epub 2019 Oct 22.

Authors

Jiao-Jiao Duan¹, Xiao-Xuan Zheng¹, Hua-Jie Niu¹, Jiu-Ju Feng¹, Qian-Li Zhang², Hong Huang³, Ai-Jun Wang⁴

Affiliations

¹ 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.
² School of Chemistry and Biological Engineering, Suzhou University of Science and Technology, Suzhou 215009, China.
³ College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, China. Electronic address: huangho17@163.com.
⁴ 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. Electronic address: ajwang@zjnu.cn.

PMID: 31676129
DOI: 10.1016/j.jcis.2019.10.082

Abstract

Developing highly active and durable catalyst is of pivotal importance in fuel cells, owing to excessive consumption of fossil fuels. Herein, porous dendritic PtRuPd nanospheres (PtRuPd NSs) were synthesized by a facile hexadecylpyridinium chloride (HDPC)-mediated one-pot aqueous method with ascorbic acid (AA) as the reducing agent. The as-obtained PtRuPd NSs displayed high-efficient catalytic activity and durability for ethylene glycol oxidation reaction (EGOR) and oxygen reduction reaction (ORR). It exhibited enlarged mass activity (MA, 1.368 A mg^-1) compared to commercial Pt/C (1.100 A mg^-1) for EGOR. Besides, the onset potential (E_onset, 0.930 V) and half-wave potential (E_1/2, 0.852 V) of PtRuPd NSs were more positive relative to homemade PtPd NSs (0.905 and 0.840 V), PdRu NSs (0.895 and 0.839 V), and commercial Pt/C (0.910 and 0.822 V) toward ORR. This work provides some valuable guidelines for producing novel trimetallic nanocatalysts in fuel cells.

Keywords: Dendritic nanospheres; Electrocatalysis; Ethylene glycol oxidation reaction; Hexadecylpyridinium chloride; Oxygen reduction reaction.