Copper-Halide Polymer Nanowires as Versatile Supports for Single-Atom Catalysts

Min Seok Kim, Haedong Park, Sung Ok Won, Aditya Sharma, Jimin Kong, Hyun S. Park, Yun Mo Sung, Tae Joon Park, Myoung Woon Moon, Kahyun Hur

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

Single-atom catalysts are heterogeneous catalysts with atomistically dispersed atoms acting as a catalytically active center, and have recently attracted much attention owing to the minimal use of noble metals. However, a scalable and inexpensive support that can stably anchor isolated atoms remains a challenge due to high surface energy. Here, copper-halide polymer nanowires with sub-nanometer pores are proposed as a versatile support for single-atom catalysts. The synthesis of the nanowires is straightforward and completed in a few minutes. Well-defined sub-nanometer pores and a large free volume of the nanowires are advantageous over any other support material. The nanowires can anchor various atomistically dispersed metal atoms into the sub-nanometer pores up to ≈3 at% via a simple solution process, and this value is at least twice as big as previously reported data. The hydrogen evolution reaction activity of −18.0 A mgPt −1 at −0.2 V overpotential shows its potential for single-atom catalysts support.

Original languageEnglish
Article number1903197
JournalSmall
Volume15
Issue number40
DOIs
Publication statusPublished - 2019 Oct 1

Keywords

  • copper-halide polymer nanowires
  • hydrogen evolution reaction
  • inorganic polymers
  • single-atom catalyst supports

ASJC Scopus subject areas

  • Biotechnology
  • Biomaterials
  • Chemistry(all)
  • Materials Science(all)

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