Open AccessFabrication Method‐Engineered Cu–ZnO/SiO 2 Catalysts with Highly Dispersed Metal Nanoparticles toward Efficient Utilization of Methanol as a Hydrogen Carrier
Author(s) -
Ye Run-Ping,
Chen Yanping,
Reina Tomas Ramirez,
Cao Zezhong,
Xu Tao,
Chen Xuelian,
Jin Yonggang,
Zhang Xiao Li,
Liu Jian
Publication year - 2021
Publication title -
advanced energy and sustainability research
Language(s) - English
Resource type - Journals
ISSN - 2699-9412
DOI - 10.1002/aesr.202100082
Subject(s) - catalysis , methanol , steam reforming , hydrogen , metal , materials science , nanoparticle , chemical engineering , hydrogen production , selectivity , inorganic chemistry , yield (engineering) , evaporation , space velocity , chemistry , nanotechnology , metallurgy , organic chemistry , physics , engineering , thermodynamics
CO 2 hydrogenation to methanol and methanol steam reforming (MSR) are regarded as two critical reactions for transportation and on‐site production of hydrogen, but it still lacks of efficient catalysts for both reactions. Herein, the CuZnSi‐ammonia evaporation method (AEM) catalyst prepared by AEM with extremely low metal loading and highly dispersed Cu/Zn species, in particular, high concentration of Cu + species, exhibits an optimum space‐time yield of methanol (1888.3 g kg Cu −1 h −1 ) and an exceptional specific activity of 282.6 molCO 2 kg Cu −1 h −1 , which is higher than a majority of the reported catalysts. Furthermore, the CuZnSi‐AEM catalyst is also active for MSR reaction with low CO selectivity. The results reveal that the morphology, exposed Cu + species, and synergistic Cu–ZnO x interaction are the key guiding factors for the successful utilization of methanol as a hydrogen carrier.