Release Time:2019-10-19  Hits:

Indexed by: Journal Papers

Date of Publication: 2019-04-26

Journal: Angewandte Chemie (International ed. in English)

Included Journals: PubMed

ISSN: 1521-3773

Key Words: electrochemistry,green chemical synthesis,hydrogenation,oxygenation,water

Abstract: The use of water as an oxygen and hydrogen source for the paired oxygenation and hydrogenation of organic substrates to produce valuable chemicals is of utmost importance as a means of establishing green chemical syntheses. Inspired by the active Ni3+ intermediates involved in electrocatalytic water oxidation by nickel-based materials, we prepared NiBx as a catalyst and used water as the oxygen source for the oxygenation of various organic compounds. NiBx was further employed as both an anode and a cathode in a paired electrosynthesis cell for the respective oxygenation and hydrogenation of organic compounds, with water as both the oxygen and hydrogen source. Conversion efficiency and selectivity of ≥99 % were observed during the oxygenation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid and the simultaneous hydrogenation of p-nitrophenol to p-aminophenol. This paired electrosynthesis cell has also been coupled to a solar cell as a stand-alone reactor in response to sunlight.© 2019 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA.