Journal of Liaoning Petrochemical University ›› 2024, Vol. 44 ›› Issue (6): 42-50.DOI: 10.12422/j.issn.1672-6952.2024.06.006

• Materials Science and New Energy (Charged Membrane and Membrane Processes for Fuel Cells) • Previous Articles     Next Articles

Preparation of the Reduced Graphene Oxide⁃Based Tin Selenide Nano⁃Petal Composite and Its Electrocatalytic Properties

Yanan WANG1(), Chuchu MENG1, Liran PEI2, Xitong WANG1, Junhua LI1, Jianhua QIAN1   

  1. 1.School of Petrochemical Engineering,Liaoning Petrochemical University,Fushun Liaoning 113001,China
    2.Department of Innovation and Technology,Shenyang Hangsheng Technology Co. ,Ltd. ,Shenyang Liaoning 110035,China
  • Received:2024-05-27 Revised:2024-07-18 Published:2024-12-25 Online:2024-12-24

花瓣状SnSe/rGO复合材料的制备及其电催化氧还原性能

王亚男1(), 孟楚楚1, 裴笠然2, 王栖桐1, 李君华1, 钱建华1   

  1. 1.辽宁石油化工大学 石油化工学院,辽宁 抚顺 113001
    2.沈阳航盛科技有限责任公司 创新技术部,辽宁 沈阳 110035
  • 作者简介:王亚男(1994⁃),女,博士,讲师,从事电催化材料的制备及其在燃料电池和金属⁃空气电池中的应用方面的研究;E⁃mail:wynants@163.com
  • 基金资助:
    国家自然科学基金项目(21878024)

Abstract:

The reduction of graphene oxide(GO), in?situ loading of SnSe and interface assembly were achieved simultaneously by microwave method, and the reduced graphene oxide(rGO)?supported the petal?shaped SnSe (SnSe/rGO) composite was successfully prepared. The SnSe/rGO was characterized by Raman spectroscopy, X?ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM), and the effects of different rGO contents for SnSe/rGO composite on the electrocatalytic oxygen reduction reaction(ORR) were investigated. The results indicated that there was an interaction between SnSe and matrix rGO, and Sn-C and Sn-O-C bonds were used as bridges of charge transfer. The intimate interconnection between the petal?like SnSe and the rGO formed a robust three?dimensional mesh structure, which served to reinforce the overall structural integrity of the catalyst, preventing its collapse. Based on this, the optimized SnSe/10%rGO catalyst (10rGO means that the mass fraction of rGO is 10%) exhibited excellent ORR activity with a limiting current density of 3.79 mA/cm2, an onset voltage (vs.RHE) of 0.85 V, and an electron transfer number of 3.10. Meanwhile, the SnSe/10%rGO catalyst performed the electrocatalysis long?term stability superior that of commercial 20%Pt/C (20%Pt means that the mass fraction of Pt is 20%) with the current density remaining 81.15% of the start value after 20 000 s of reaction. The present work offers insights into the preparation of non?precious metal cathode oxygen reduction catalytic materials for fuel cells.

Key words: Tin selenide, Reduced graphene oxide, Oxygen reduction, Fuel cell, Microwave method

摘要:

采用微波法一步实现氧化石墨烯还原与SnSe的原位负载及界面组装,成功制备了还原氧化石墨烯(rGO)负载花瓣状SnSe复合材料(SnSe/rGO)。通过拉曼光谱、X射线光电子能谱(XPS)、扫描电子显微镜(SEM)等分析手段对SnSe/rGO进行表征,并研究了rGO质量分数对复合材料电催化氧还原反应(ORR)性能的影响。结果表明,SnSe与基体rGO之间产生相互作用,并以Sn—C和Sn—O—C为电荷转移的桥梁;花瓣状SnSe与rGO紧密结合,形成了较为稳固的三维网状结构,支撑催化剂总体结构不坍塌;SnSe/10%rGO催化剂(10%rGO表示rGO的质量分数为10%)具有良好的ORR活性,其极限电流密度为3.79 mA/cm2,起始电压(vs.RHE)为0.85 V,电子转移数为3.10;具有比商业20%Pt/C催化剂(20%Pt表示Pt质量分数为20%)更为优良的电催化长期稳定性:反应20 000 s后的相对电流密度仍能保持81.15%。研究结果为燃料电池用非贵金属阴极ORR催化材料的制备提供了思路。

关键词: 硒化锡, 还原氧化石墨烯, 氧气还原, 燃料电池, 微波法

CLC Number: 

Cite this article

Yanan WANG, Chuchu MENG, Liran PEI, Xitong WANG, Junhua LI, Jianhua QIAN. Preparation of the Reduced Graphene Oxide⁃Based Tin Selenide Nano⁃Petal Composite and Its Electrocatalytic Properties[J]. Journal of Liaoning Petrochemical University, 2024, 44(6): 42-50.

王亚男, 孟楚楚, 裴笠然, 王栖桐, 李君华, 钱建华. 花瓣状SnSe/rGO复合材料的制备及其电催化氧还原性能[J]. 辽宁石油化工大学学报, 2024, 44(6): 42-50.