| Title | Photocatalytic syngas production from bio-derived glycerol and water on AuIn-decorated GaN nanowires supported by Si wafer |
| Authors | Wang, Zhouzhou Sheng, Bowen Chen, Yiqing Sadaf, Sharif Md. Li, Jinglin Yang, Jiajia Song, Jun Yao, Lin Yu, Ying Zhu, Lei Wang, Xinqiang Huang, Zhen Zhou, Baowen |
| Affiliation | Shanghai Jiao Tong Univ, Sch Mech Engn, Key Lab Power Machinery & Engn, Minist Educ, 800 Dongchuan Rd, Shanghai 200240, Peoples R China Cent China Normal Univ, Inst Nanosci & Nanotechnol, Coll Phys Sci & Technol, Wuhan 430079, Peoples R China Peking Univ, Nanooptoelectron Frontier Ctr, Sch Phys, State Key Lab Artificial Microstruct & Mesoscop Ph, Beijing, Peoples R China McGill Univ, Dept Min & Mat Engn, 3610 Univ St, Montreal, PQ H3A 0C9, Canada Univ Quebec, Inst Natl Rech Sci INRS, Ctr Energie Mat & Telecommun, 1650 Blvd Lionel Boulet, Varennes, PQ J3X 1S2, Canada Shanghai Jiao Tong Univ, China UK Low Carbon Coll, 3 Yinlian Rd, Shanghai 201306, Peoples R China Peking Univ, Yangtze Delta Inst Optoelect, Nantong 226010, Jiangsu, Peoples R China Peking Univ, Collaborat Innovat Ctr Quantum Matter, Sch Phys, Beijing 100871, Peoples R China |
| Keywords | ELECTRON-HOLE RECOMBINATION ARTIFICIAL PHOTOSYNTHESIS SELECTIVE CONVERSION HYDROGEN-PRODUCTION CO2 REDUCTION CATALYSTS METHANE SILICON FUELS |
| Issue Date | 3-Jan-2023 |
| Publisher | GREEN CHEMISTRY |
| Abstract | Green syngas production from Earth-abundant and renewable resources is a viable means to achieve carbon neutrality. However, this critical path to realize net-zero carbon dioxide emissions has remained extremely challenging. In this work, by coupling GaN nanowires (NWs) with dual gold-indium nanoparticles (NPs) onto wafer-scale silicon, a novel and well-developed photocatalytic architecture of AuIn NPs/GaN NWs/Si has been assembled for the first time to produce syngas with bio-derived glycerol, water, and concentrated light as the only inputs. By correlative experimental and theoretical investigations, the AuIn/GaN interface is found to be synergistically favorable for dehydrogenating the edge functional group of -CH2OH of the glycerol skeleton, followed by the cleavage of the inert C(sp(3))-C(sp(3)) bond toward an ethylene glycol-based intermediate with a greatly reduced reaction energy barrier in glycerol solution. Owing to the exceptional optoelectronic and catalytic properties, syngas yields a benchmarking activity of 149.3 mmol g(-1) h(-1) under mild conditions without an extra energy input other than light. The H-2/CO ratio can be broadly tailored from 19.3 to 0.9, thus favoring various downstream products. Water plays a vital role in the highly efficient formation of syngas by providing active species e.g., hydroxyl radicals through photocatalysis. Owing to the widespread distribution of biomass, water, and sunlight, and the industrially available semiconductor platform, this work promises to efficiently and selectively produce next-generation distributed syngas. |
| URI | http://hdl.handle.net/20.500.11897/668105 |
| ISSN | 1463-9262 |
| DOI | 10.1039/d2gc04107c |
| Indexed | SCI(E) |
| Appears in Collections: | 物理学院 人工微结构和介观物理国家重点实验室 |
