Affiliation:
1. School of Chemistry and Chemical Engineering Northwestern Polytechnical University Xi'an Shaanxi 710129 China
2. State Key Laboratory of Solidification Processing, School of Materials Science and Engineering Northwestern Polytechnical University Xi'an Shaanxi 710072 China
3. Interdisciplinary Research Center of Biology & Catalysis, School of Life Sciences Northwestern Polytechnical University Xi'an Shaanxi 710072 China
Abstract
Comprehensive SummaryAlkenols are important intermediates for the industrial manufacture of various commodities and fine chemicals. At present, alkenols are produced via thermocatalytic semihydrogenation of corresponding alkynols using precious metal Pd‐based catalysts in pressurized hydrogen atmosphere. In this work, we highlight an efficient electrocatalytic strategy for selectively reducing alkynols to alkenols under ambient conditions. Using 2‐methyl‐3‐butyn‐2‐ol as a model alkynol, Cu3P nanoarrays anchored on Cu foam remarkably deliver an industrial‐level partial current density of 0.79 A·cm–2 and a specific selectivity of 98% for 2‐methyl‐3‐buten‐2‐ol in acidic solution. Over a 40‐runs stability test, Cu3P nanoarrays maintain 90% alkynol conversion and 90% alkenol selectivity. Even in a large two‐electrode flow electrolyser, the single‐pass alkynol conversion and alkenol selectivity of Cu3P nanoarrays exceed 90%. Moreover, this selective electrocatalytic hydrogenation approach is broadly feasible for the production of various water‐soluble alkenols. Electrochemical analyses, theoretical simulation and electrochemical in‐situ infrared investigations together reveal that exothermic alkynol hydrogenation, facile alkenol desorption and formation of active H on Cu3P surfaces account for the excellent electrocatalytic performance.
Funder
Fundamental Research Funds for the Central Universities
National Natural Science Foundation of China
Natural Science Foundation of Shaanxi Province
Cited by
1 articles.
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