化工进展 ›› 2023, Vol. 42 ›› Issue (S1): 299-309.DOI: 10.16085/j.issn.1000-6613.2023-1169

• 工业催化 • 上一篇    下一篇

用于SO2去极化电解制氢的铂基催化剂

谢璐垚(), 陈崧哲, 王来军, 张平()   

  1. 清华大学核能与新能源技术研究院,北京 100084
  • 收稿日期:2023-07-10 修回日期:2023-09-12 出版日期:2023-10-25 发布日期:2023-11-30
  • 通讯作者: 张平
  • 作者简介:谢璐垚(2000—),女,硕士研究生,研究方向为新型电解制氢技术。E-mail:xiely22@mails.tsinghua.edu.cn
  • 基金资助:
    国家科技重大专项(ZX06901)

Platinum-based catalysts for SO2 depolarized electrolysis

XIE Luyao(), CHEN Songzhe, WANG Laijun, ZHANG Ping()   

  1. Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
  • Received:2023-07-10 Revised:2023-09-12 Online:2023-10-25 Published:2023-11-30
  • Contact: ZHANG Ping

摘要:

综述了铂基SO2去极化电解(SDE)阳极催化剂的研究进展。SDE阳极反应条件苛刻,铂基催化剂因具备良好的导电性、抗腐蚀性,并能够有效抵抗H2S等硫物质的毒化,成为SDE阳极催化剂的首选。通过引入Al、Cr、Ni等非贵金属元素,可有效提高铂基催化剂性能并减少Pt的用量。在载体方面,综述和讨论了活性炭、石墨、炭黑、石墨烯以及SiC/TiC等对铂基催化剂性能的影响,此外分析了催化剂制备工艺对催化剂结构参数和性能的影响。尽管已经取得了很多研究成果,但当前对铂基SDE阳极催化剂的长期稳定性、多金属催化剂各金属元素间的相互作用等方面的研究尚较少,进一步优化催化剂设计、加强载体筛选及其改性,开发新的制备工艺,提高Pt利用率及催化剂的活性和稳定性,是未来相关研究的关键所在。

关键词: 制氢, 混合硫循环, 二氧化硫去极化电解, 铂基催化剂

Abstract:

The research progress of platinum-based SO2 depolarized electrolysis (SDE) anode catalysts is reviewed in this paper. Because of the outstanding electrical conductivity, corrosion resistance, and effective resistance to H2S and other sulfur-containing poisonings, platinum-based catalysts are considered as the best choice for SDE anode. By introducing non-precious metal such as Al, Cr and Ni, the performance of platinum-based catalysts can be effectively improved and the amount of Pt can be reduced. In terms of the support, the effects of activated carbon, graphite, carbon black, graphene and SiC/TiC on the properties were reviewed and discussed. In addition, the effects of catalyst preparation technology on the structural parameters and performance of catalysts were also discussed. Although many research results have been achieved, there are still insufficient studies on the long-term stability of platinum-based SDE anode catalysts and the interactions among metal elements in polymetallic catalysts. Further optimization of catalyst design and carrier screening/modification, development of new preparation processes, improvement of Pt utilization and catalyst activity and stability, are the keys of future research.

Key words: hydrogen production, hybrid sulfur cycle, SO2 depolarized electrolysis, platinum based catalyst

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