Electroassisted selective and stable CO2 hydrogenation to methanol on CuZnAl catalyst beyond conventional thermal process

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This study demonstrates that an electroassisted catalytic process on CuZnAl catalyst enhances CO2 conversion and methanol selectivity by creating specific Cu-ZnO interfaces and improving redox properties compared to conventional thermal processes.

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The paper studies an electroassisted catalytic approach to CO2 hydrogenation to methanol using a CuZnAl catalyst, contrasting it with a conventional thermal process and analyzing how an applied electric field alters catalyst structure. Using electric-field-driven effects, the authors report formation of Cu steps with stacking faults, disordered ZnO overlayers, and specific Cu–ZnO (Cu2O) interfaces that preferentially expose the Cu2O (110) facet and tune the balance of Cu0/Cu+ species, which together support redox behavior, CO2/CO adsorption–desorption, formation of HCOO* and CH3O* intermediates, and durable stability. They report that only 0.5 W of electric power increases CO2 conversion and methanol selectivity by about 22% and 28% versus the thermal catalytic process. As a preprint not peer reviewed by a journal, the main limitation explicitly stated is the lack of journal peer review. The paper does not explicitly discuss endometriosis or adenomyosis; it was included in the corpus via a keyword match in the upstream search index.

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Abstract

Abstract Effective strategy is strongly required for efficient CO2 hydrogenation to methanol on Cu-based catalyst, considering the great significance of recycling and upgrading this greenhouse gas. Here, we report an electroassisted catalytic process for CO2 hydrogenation to methanol on CuZnAl catalyst beyond conventional thermal process. The electric field drives the formation of Cu steps with stacking faults and disordered ZnO overlayers, generation of specific Cu-ZnO (Cu2O) interfaces through their strong interactions, preferential exposure of Cu2O (110) facet and controllable balance of Cu0/Cu+ species in catalyst. These unique characteristics consequentially trigger the excellent redox properties of Cu species, CO2/CO adsorption-desorption capacities, and thermal tolerance, facilitating the formation of crucial HCOO* and CH3O* intermediates and durable catalytic stability. Only provided 0.5 W electric power can supremely promote the CO2 conversion and methanol selectivity by around 22% and 28% compared with the conventional thermal catalytic process, rendering it a promising technology for CO2 transformation.
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Electroassisted selective and stable CO2 hydrogenation to methanol on CuZnAl catalyst beyond conventional thermal process | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Article Electroassisted selective and stable CO 2 hydrogenation to methanol on CuZnAl catalyst beyond conventional thermal process Suojiang Zhang, Qiang Yang, Hanwen Yan, Jie Li, Guoliang Zhang, and 3 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-3937098/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract Effective strategy is strongly required for efficient CO 2 hydrogenation to methanol on Cu-based catalyst, considering the great significance of recycling and upgrading this greenhouse gas. Here, we report an electroassisted catalytic process for CO 2 hydrogenation to methanol on CuZnAl catalyst beyond conventional thermal process. The electric field drives the formation of Cu steps with stacking faults and disordered ZnO overlayers, generation of specific Cu-ZnO (Cu 2 O) interfaces through their strong interactions, preferential exposure of Cu 2 O (110) facet and controllable balance of Cu 0 /Cu + species in catalyst. These unique characteristics consequentially trigger the excellent redox properties of Cu species, CO 2 /CO adsorption-desorption capacities, and thermal tolerance, facilitating the formation of crucial HCOO* and CH 3 O* intermediates and durable catalytic stability. Only provided 0.5 W electric power can supremely promote the CO 2 conversion and methanol selectivity by around 22% and 28% compared with the conventional thermal catalytic process, rendering it a promising technology for CO 2 transformation. Physical sciences/Chemistry/Chemical engineering Physical sciences/Chemistry/Catalysis/Heterogeneous catalysis CO2 hydrogenation Methanol CuZnAl catalyst Electric field Unique characteristics Full Text Additional Declarations There is NO Competing Interest. Supplementary Files SupplementaryMaterial.pdf Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. 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