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Poly(ionic liquid)‐Mediated Morphogenesis of Bismuth Sulfide with a Tunable Band Gap and Enhanced Electrocatalytic Properties
Author(s) -
Gao MinRui,
Yu ShuHong,
Yuan Jiayin,
Zhang Weiyi,
Antonietti Markus
Publication year - 2016
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201607221
Subject(s) - bismuth , ionic liquid , inert , solubility , sulfide , polymer , ionic bonding , inorganic chemistry , chemical engineering , lead sulfide , chemistry , materials science , band gap , nanotechnology , organic chemistry , quantum dot , ion , catalysis , engineering , optoelectronics
Conventional polymer additives have a substantial impact on synthetic inorganic chemistry, but critical shortcomings remain; for example, low solubility in organic solvents and potential thermodynamic aggregates. Poly(ionic liquid)s have now been used as efficient additives that enable a high level control of bismuth sulfide crystals with significant size and morphological diversities. The bismuth sulfides exhibit tunable band structure as a result of the quantum size effects. Moreover, poly(ionic liquid)s are able to couple with as‐synthesized bismuth sulfides chemically and endow a modified surface electronic structure, which allows resultant products to possess outstanding electrocatalytic performance for water oxidation, although its commercial counterpart is catalytically inert.