Release Time:2019-11-07  Hits:

Indexed by: Journal Papers

Date of Publication: 2019-07-01

Journal: ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

Included Journals: PubMed、EI、SCIE

Volume: 58

Issue: 27

Page Number: 9155-9159

ISSN: 1433-7851

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 electro-catalytic 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-hydroxy-methylfurfural 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.