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Kolbe Electrolysis of Biomass‐Derived Fatty Acids Over Pt Nanocrystals in an Electrochemical Cell
Author(s) -
Yuan Gang,
Wu Chan,
Zeng Guorong,
Niu Xiaopo,
Shen Guoqiang,
Wang Li,
Zhang Xiangwen,
Luque Rafael,
Wang Qingfa
Publication year - 2020
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201901443
Subject(s) - electrochemistry , electrolysis , biomass (ecology) , chemistry , aqueous solution , bulk electrolysis , biofuel , adsorption , hydrogen , inorganic chemistry , chemical engineering , electrode , organic chemistry , waste management , cyclic voltammetry , ecology , engineering , electrolyte , biology
Abstract Electrochemical valorization of non‐food biomass‐derived carboxylates into fuels is promising for the conversion, storage, and distribution of renewable electricity. Herein, we demonstrate that biofuels, hydrogen, and bicarbonate can be simultaneously produced in an electrochemical cell by one‐step electrolysis of free fatty acids under ambient conditions on 3D self‐supported ultralow Pt loading (2 wt %) electrode. The three valuable products can naturally separate from each other during the electrolysis in the alkaline aqueous solution. The experimental suggests that Pt(100) and Pt(110) are favorable for the production of non‐Kolbe and Kolbe hydrocarbons, respectively. DFT calculation further clarifies the adsorption and stabilization of the reaction intermediates on Pt(100) and Pt(110).