We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Photoelectrocatalytic Oxidation of Methane Into Methanol Over BiVO<sub>4</sub>/AU/FeCo–LDH Catalysts.
- Authors
Liu, Jia; Ji, Jiahui; Zhang, Yinghua; Bai, Zhiming; Huang, Zhian; Gao, Yukun; Wang, Xiaotian
- Abstract
Conversion of methane into high value added chemicals and clean fuels such as methanol under mild conditions is of great importance to the chemical industry. However, traditional thermal catalytic of methane always suffer from harsh reaction conditions and poor product selectivity. Here, we reported photoelectrocatalytic oxidation of methane over BiVO4/Au/FeCo–LDH under simulated sunlight illumination with ambient' conditions. The results demonstrate that BiVO4/Au/FeCo–LDH exhibits excellent photoelectrochemical properties and catalytic activity. The double-layer capacitance ( C d l ) value of BiVO4/Au/FeCo–LDH is estimated to be 3.00 mF ⋅ cm − 2 , indicating its considerable electrochemical active areas. The photocurrent density of BiVO4/Au/FeCo–LDH reaches up to 1.46 mA ⋅ cm − 2 in methane atmosphere. The methanol yield for photoelectrocatalytic oxidation of methane is 8.46 times that of pure BiVO4, and the corresponding Faraday efficiency is 56.09%. Finally, the reaction mechanism of photoelectrocatalytic conversion of methane to methanol based on hydroxyl radical and methyl radical as intermediate products is proposed. Our finding is expected to provide new insight for the design of active and selective catalysts toward photoelectrocatalytic conversion of methane. BiVO4 nanopillars decorated with Au nanoparticles (NPs) and FeCo–LDH nanoplates were obtained and used for photoelectrocatalytic oxidation of methane into methanol under simulated sun light illumination with ambient conditions. The Faradaic efficiency of methanol by methane oxidation over BiVO4/Au/FeCo–LDH is 56.09%, 3.5 times of 16.18% for bare BiVO4. Our finding is expected to provide new insight for the design of active and selective catalysts toward photoelectrocatalytic conversion of methane.
- Subjects
OXIDATION of methanol; METHYL radicals; METHANOL as fuel; GOLD nanoparticles; HYDROXYL group; METHANOL; METHANE
- Publication
NANO, 2022, Vol 17, Issue 4, p1
- ISSN
1793-2920
- Publication type
Article
- DOI
10.1142/S179329202250028X