二氧化碳还原
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安师大在原子尺度精准实现“碳转化”
Xin Lang Cai Jing· 2026-01-14 20:45
Core Insights - The research team led by Professor Mao Junjie from Anhui Normal University has made significant advancements in the field of photocatalytic carbon dioxide reduction, successfully converting CO2 into high-value propane through the design of multi-site cooperative catalysts at the atomic scale [1][2] - The findings have been published in the prestigious journal "Angewandte Chemie," highlighting the innovative approach to catalyst design and its implications for sustainable energy solutions [1] Group 1: Research Achievements - The team developed an atomic-level catalyst based on metal-organic framework materials, utilizing specific nanosheets as carriers to create a cooperative active center composed of nickel single atoms and adjacent manganese dual atoms [1] - Experimental results indicate that this catalyst exhibits excellent catalytic performance in pure water environments, showcasing its potential for practical applications [1] Group 2: Implications for Industry - This research provides a new strategy for designing efficient and selective CO2 reduction catalysts, contributing to the fundamental research progress in photocatalytic carbon conversion [2] - The results open new pathways for the resource utilization of greenhouse gases and the synthesis of green chemical raw materials, aligning with the goals of achieving carbon neutrality [2]
中国科学院发表最新Science论文
生物世界· 2025-09-05 10:30
Core Viewpoint - The article discusses a groundbreaking research study from the Dalian Institute of Chemical Physics, which presents a two-step method for producing ethylene from carbon dioxide (CO2) using photochemical hydrogen dissociation, achieving nearly quantitative reduction of CO2 to ethylene [2][3]. Group 1 - The research team discovered that under 365 nm wavelength irradiation, an Au-TiO2 composite structure can achieve hydrogen dissociation at room temperature [3]. - The mechanism involves the formation of interfacial electric dipoles from photo-generated electron-hole pairs between gold nanoparticles and the titanium-oxide framework, enhancing hydrogen dissociation capabilities [3]. - The process results in a conversion rate of over 99% from CO2 to ethane, and after 1500 hours of continuous irradiation, the system maintains over 99% selectivity for ethylene [3]. Group 2 - This study provides a new strategy for precise control of C-C coupling and directed conversion of CO2, which is a significant advancement in the field of chemical engineering and sustainability [3].