{"title":"Boosting Ethylene Yield via Synergistic 2D/0D Nanostructured VCu Layered Double Hydroxide/TiO2 Catalyst in Electrochemical CO2 Reduction","authors":"Sneha Lavate, Rohit Srivastava","doi":"10.1039/d4ya00417e","DOIUrl":null,"url":null,"abstract":"The electrochemical conversion of CO2 into C1 to C2 hydrocarbon such as Methane and ethylene is a promising pathway towards to achieve net zero however due to high activation barrier for CO2 it remains a big challenge. In this work, an effective strategy has been developed through the synthesis of a low-cost Vanadium and Copper based layered double hydroxide (LDH) decorated with TiO2 nanoparticles (VCu LDH/TiO2) as a highly efficient electrocatalyst for the electrochemical CO2 reduction to ethylene. The structural and morphological study of the developed electrocatalyst was analyzed with the help of various analytical instruments such as X-ray diffractometer (XRD), Fourier Transform-Infrared (FT-IR), Scanning Electron Microscopy (FESEM), X-ray photoelectron microscopy (XPS) and Transmission Electron Microscopy (TEM) which confirmed the successful formation of VCu LDH/TiO2. The electrochemical CO2 reduction reaction (CO2RR) study was performed in 0.1 M KHCO3 using H-type cell and showed the formation of CO, CH4, and C2H4 value added end products. The highest faradaic efficiency of 92% for C2H4 was obtained at -0.4 V vs RHE. The above results suggest that the VCu LDH/TiO2 NPs electrocatalyst may be an excellent candidate for the CO2 reduction and can be also utilized in wide range of energy conversion and storage applications.","PeriodicalId":72913,"journal":{"name":"Energy advances","volume":null,"pages":null},"PeriodicalIF":3.2000,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Energy advances","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1039/d4ya00417e","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
The electrochemical conversion of CO2 into C1 to C2 hydrocarbon such as Methane and ethylene is a promising pathway towards to achieve net zero however due to high activation barrier for CO2 it remains a big challenge. In this work, an effective strategy has been developed through the synthesis of a low-cost Vanadium and Copper based layered double hydroxide (LDH) decorated with TiO2 nanoparticles (VCu LDH/TiO2) as a highly efficient electrocatalyst for the electrochemical CO2 reduction to ethylene. The structural and morphological study of the developed electrocatalyst was analyzed with the help of various analytical instruments such as X-ray diffractometer (XRD), Fourier Transform-Infrared (FT-IR), Scanning Electron Microscopy (FESEM), X-ray photoelectron microscopy (XPS) and Transmission Electron Microscopy (TEM) which confirmed the successful formation of VCu LDH/TiO2. The electrochemical CO2 reduction reaction (CO2RR) study was performed in 0.1 M KHCO3 using H-type cell and showed the formation of CO, CH4, and C2H4 value added end products. The highest faradaic efficiency of 92% for C2H4 was obtained at -0.4 V vs RHE. The above results suggest that the VCu LDH/TiO2 NPs electrocatalyst may be an excellent candidate for the CO2 reduction and can be also utilized in wide range of energy conversion and storage applications.