Optimum Cu nanoparticle catalysts for CO2 hydrogenation towards methanol
نویسندگان
چکیده
منابع مشابه
Response to Comment on "Active sites for CO2 hydrogenation to methanol on Cu/ZnO catalysts".
In their Comment on the our recent Report, Nakamura et al argue that our x-ray photoelectron spectroscopy (XPS) analysis was affected by the presence of formate species on the catalyst surface. This argument is not valid because the reactant gases were evacuated at temperatures from 525 to 575 kelvin, conditions under which formate is not stable on the catalyst surface. An analysis of the XPS r...
متن کاملComment on "Active sites for CO2 hydrogenation to methanol on Cu/ZnO catalysts".
Kattel et al (Reports, 24 March 2017, p. 1296) report that a zinc on copper (Zn/Cu) surface undergoes oxidation to zinc oxide/copper (ZnO/Cu) during carbon dioxide (CO2) hydrogenation to methanol and conclude that the Cu-ZnO interface is the active site for methanol synthesis. Similar experiments conducted two decades ago by Fujitani and Nakamura et al demonstrated that Zn is attached to format...
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Colloidal solutions of ZnO-Cu nanoparticles can be used as catalysts for the reduction of carbon dioxide with hydrogen. The use of phosphinate ligands for the synthesis of the nanoparticles from organometallic precursors improves the reductive stability and catalytic activity of the system.
متن کاملZwitterionic amidinates as effective ligands for platinum nanoparticle hydrogenation catalysts.
Ligand control of metal nanoparticles (MNPs) is rapidly gaining importance as ligands can stabilize the MNPs and regulate their catalytic properties. Herein we report the first example of Pt NPs ligated by imidazolium-amidinate ligands that bind strongly through the amidinate anion to the platinum surface atoms. The binding was established by 15N NMR spectroscopy, a precedent for nitrogen ligan...
متن کاملTowards a rational design of ruthenium CO2 hydrogenation catalysts by Ab initio metadynamics.
Complete reaction pathways relevant to CO2 hydrogenation by using a homogeneous ruthenium dihydride catalyst ([Ru(dmpe)2H2], dmpe=Me2PCH2CH2PMe2) have been investigated by ab initio metadynamics. This approach has allowed reaction intermediates to be identified and free-energy profiles to be calculated, which provide new insights into the experimentally observed reaction pathway. Our simulation...
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ژورنال
عنوان ژورنال: Nano Energy
سال: 2018
ISSN: 2211-2855
DOI: 10.1016/j.nanoen.2017.11.021