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Copper‐Halide Polymer Nanowires as Versatile Supports for Single‐Atom Catalysts
Author(s) -
Kim MinSeok,
Park Haedong,
Won Sung Ok,
Sharma Aditya,
Kong Jimin,
Park Hyun S.,
Sung YunMo,
Park Tae Joon,
Moon MyoungWoon,
Hur Kahyun
Publication year - 2019
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201903197
Subject(s) - nanowire , catalysis , halide , overpotential , materials science , atom (system on chip) , nanotechnology , nanometre , copper , polymer , nanoparticle , noble metal , chemical engineering , chemical physics , metal , inorganic chemistry , chemistry , electrode , electrochemistry , organic chemistry , metallurgy , composite material , computer science , embedded system , engineering
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 mg Pt −1 at −0.2 V overpotential shows its potential for single‐atom catalysts support.