Deep Euteceic Solvents-Assisted Synthesis of Novel Network Nanostructures for Accelerating Formic Acid Electrooxidation

Authors

Jun-Ming Zhang, Key Laboratory of Magnetic Molecules & Magnetic Information Materials Ministry of Education, The School of Chemical and Material Science, Shanxi Normal University, Taiyuan 030031, Shanxi, China; Guangxi Key Laboratory of Low Carbon Energy Materials, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guangxi, Guilin, 541004, China; Kunshan Superior Silk Screen Printing Material Co., LTD, Kunshan, 215300, Jiangsu, ChinaFollow
Xiao-Jie Zhang, Key Laboratory of Magnetic Molecules & Magnetic Information Materials Ministry of Education, The School of Chemical and Material Science, Shanxi Normal University, Taiyuan 030031, Shanxi, China; Guangxi Key Laboratory of Low Carbon Energy Materials, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guangxi, Guilin, 541004, China
Yao Chen, Key Laboratory of Magnetic Molecules & Magnetic Information Materials Ministry of Education, The School of Chemical and Material Science, Shanxi Normal University, Taiyuan 030031, Shanxi, China
Ying-Jian Fan, Key Laboratory of Magnetic Molecules & Magnetic Information Materials Ministry of Education,The School of Chemical and Material Science, Shanxi Normal University, Taiyuan, 03003, Shanxi, China
You-Jun Fan, Guangxi Key Laboratory of Low Carbon Energy Materials, College of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, Guangxi, ChinaFollow
Jian-Feng Jia, Key Laboratory of Magnetic Molecules & Magnetic Information Materials Ministry of Education, The School of Chemical and Material Science, Shanxi Normal University, Taiyuan 030031, Shanxi, ChinaFollow

Corresponding Author

Jun-Ming Zhang(zhangjunming@sxnu.edu.cn);
You-Jun Fan (youjunfan@mailbox.gxnu.edu.cn);
Jian-Feng Jia (jiajf@dns.sxnu.edu.cn)

Abstract

Deep eutectic solvents (DESs) have been reported as a type of solvent for the controllable synthesis of metal nanostructures. Interestingly, flower-like palladium (Pd) nanoparticles composed of staggered nanosheets and nanospheres are spontaneously transformed into three-dimensional (3D) network nanostructures in choline chloride-urea DESs using ascorbic acid as a reducing agent. Systematic studies have been carried out to explore the formation mechanism, in which DESs itself acts as a solvent and soft template for the formation of 3D flower-like network nanostructures (FNNs). The amounts of hexadecyl trimethyl ammonium bromide and sodium hydroxide also play a crucial role in the anisotropic growth and generation of Pd-FNNs. The low electrocatalytic performance of Pd is one of the major challenges hindering the commercial application of fuel cells. Whereas, the 3D Pd-FNNs with lower surface energy and abundant grain boundaries exhibited the enhanced electrocatalytic activity and stability toward formic acid oxidation, by which the mass activity and specific activity were 2.7 and 1.4 times higher than those of commercial Pd black catalyst, respectively. Therefore, the current strategy provides a feasible route for the synthesis of unique Pd-based nanostructures.

Graphical Abstract

Keywords

Deep eutectic solvents; Palladium; Network nanostructure; Formic acid; Electro-oxidation

DOI Link

https://doi.org/10.13208/j.electrochem.2206231

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Publication Date

2023-05-28

Online Available Date

2022-07-21

Revised Date

2022-07-19

Received Date

2022-06-23

Recommended Citation

Jun-Ming Zhang, Xiao-Jie Zhang, Yao Chen, Ying-Jian Fan, You-Jun Fan, Jian-Feng Jia. Deep Euteceic Solvents-Assisted Synthesis of Novel Network Nanostructures for Accelerating Formic Acid Electrooxidation[J]. Journal of Electrochemistry, 2023 , 29(5): 2206231.
DOI: 10.13208/j.electrochem.2206231
Available at: https://jelectrochem.xmu.edu.cn/journal/vol29/iss5/4