选择性
乙烯
光热治疗
材料科学
表面等离子共振
催化作用
钨
等离子体子
光化学
氧气
光热效应
纳米线
脱水
化学工程
纳米颗粒
氧化物
纳米技术
金属
无机化学
化学
有机化学
光电子学
冶金
工程类
生物化学
作者
Juan Li,Guanying Chen,Jiahao Yan,Baibiao Huang,Hefeng Cheng,Zaizhu Lou,Baojun Li
标识
DOI:10.1016/j.apcatb.2019.118517
摘要
Non-metallic plasmonic materials, as alternatives to costly noble metals, have drawn numerous attention owning to their unique localized surface plasmon resonance (LSPR) effect. Herein, we report non-metallic plasmonic tungsten oxide (WO3−x) nanowire bundles with abundant oxygen vacancy (OVs) that gives efficient activity for ethylene production from ethanol dehydration under full spectrum light irradiation. A remarkable ethylene generation rate of 16.9 mmol g−1 h−1 was achieved with high selectivity (94.9 %) over the WO3−x-5 nanowires with maximum oxygen vacancies, which was 16 times higher than 1.0 mmol g−1 h−1 (selectivity of 90.5 %) of WO3−x-20 nanoplates with low oxygen vacancies. Such impressive performance is ascribed to the synergistic effect of plasmonic hot electrons and photothermal effect. This work is expected to provide new insights on photo-induced ethanol dehydration for highly selective ethylene production.
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