Copper-Halide Polymer Nanowires as Versatile Supports for Single Atom Catalysts
- Copper-Halide Polymer Nanowires as Versatile Supports for Single Atom Catalysts
- 원성옥; 문명운; 허가현; 박현서; 김민석; 공지민; 박해동; Aditya Sharma; 성윤모; 박태준
- Issue Date
- VOL 15, NO 40-1903197-6
- 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.
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