Nobel metal based high entropy alloy for conversion of carbon dioxide (CO2) to hydrocarbon

Show simple item record Nellaiappan, Subramanian Kumar, Nirmal Kumar, Ritesh Parui, Arko Malviya, Kirtiman Deo Pradeep, K. G. Singh, Abhishek K. Sharma, Sudhanshu Tiwary, Chandra Sekhar Biswas, Krishanu 2019-09-18T10:12:53Z 2019-09-18T10:12:53Z 2019-09
dc.identifier.citation Nellaiappan, Subramanian; Kumar, Nirmal; Kumar, Ritesh; Parui, Arko; Malviya, Kirtiman Deo; Pradeep, K. G.; Singh, Abhishek K.; Sharma, Sudhanshu; Tiwary, Chandra Sekhar and Biswas, Krishanu, "Nobel metal based high entropy alloy for conversion of carbon dioxide (CO2) to hydrocarbon",, DOI: 10.26434/chemrxiv.9777218.v1, Sep. 2019. en_US
dc.description.abstract Conversion of carbon-di-oxide into selective hydrocarbon using stable catalyst remains a holy-grail in catalysis community. The high overpotential, stability, and selectivity in use of a single metal-based catalyst still remain a challenge. In current work, instead of using pure noble metals (Ag, Au, and Pt) as the catalyst, a novel nanocrystalline high entropy alloy (HEA: AuAgPtPdCu) has been used for conversion of CO2 into gaseous hydrocarbons. Utilizing an approach of multi-metallic HEA, a Faradaic efficiency of about 100% towards gaseous products is obtained. The reason behind the superior catalytic activity of high entropy alloy (HEA) was established through first-principles based density functional theory (DFT) by comparing it with pristine Cu (111) surface. This is attributed to the reversal in adsorption trends for two out of the total eight intermediates - *OCH3 and *O on Cu(111) and HEA surfaces.
dc.description.statementofresponsibility by Subramanian Nellaiappan, Nirmal Kumar, Ritesh Kumar, Arko Parui, Kirtiman Deo Malviya, K. G. Pradeep, Abhishek K. Singh, Sudhanshu Sharma, Chandra Sekhar Tiwary and Krishanu Biswas
dc.language.iso en_US en_US
dc.subject high entropy alloy en_US
dc.subject catalysis chemistry en_US
dc.subject DFT analyses en_US
dc.subject electron microscopy observations en_US
dc.title Nobel metal based high entropy alloy for conversion of carbon dioxide (CO2) to hydrocarbon en_US
dc.type Preprint en_US

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