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Efficient Electrosynthesis of Syngas with Tunable CO/H 2 Ratios over Zn x Cd 1− x S‐Amine Inorganic–Organic Hybrids
Author(s) -
Meng Nannan,
Liu Cuibo,
Liu Yang,
Yu Yifu,
Zhang Bin
Publication year - 2019
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201913003
Subject(s) - syngas , electrosynthesis , amine gas treating , electrochemistry , electrolysis , chemistry , inorganic chemistry , catalysis , electrode , organic chemistry , electrolyte
Efficient electrochemical reduction of CO 2 and H 2 O into industrial syngas with tunable CO/H 2 ratios, especially integrated with anodic organic synthesis to replace the low‐value oxygen evolution reaction (OER), is highly desirable. Here, integration of controllable partial substitution of zinc (Zn) with amine incorporation into CdS‐amine inorganic‐organic hybrids is used to generate highly efficient electrocatalysts for synthesizing syngas with tunable CO/H 2 ratios (0–19.7), which are important feedstocks for the Fischer–Tropsch process. Diethylenetriamine could enhance the adsorption and accelerate the activation of CO 2 to form the key intermediate COOH* for CO formation. Zn substitution promoted the hydrogen evolution reaction (HER), leading to tunable CO/H 2 ratios. Importantly, syngas and dihydroisoquinoline can be simultaneously synthesized by pairing with anodic semi‐oxidation of tetrahydroisoquinoline in a Zn x Cd 1− x S‐Amine ∥ Ni 2 P two‐electrode electrolyzer.