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molaid.com

molaid合物检索及智能一体化数字合成平台,全球首个以网页端为主,移动端为辅的多终端一体化学合成“口袋工具”，收录全球数以亿计的化学品数据,提供精准数据信息,包括物化性质、毒理性、反应、文献、晶体、谱图、安全、商品等信息数据,实现合成实验全场景覆盖.分子通达世界，碳氢助力合成

sciepublish.com

Photocatalytic-induced cleaving of the ether C–O bond in model lignin compounds was studied with a closely-coupled compo-site material consisting of Ni(OH)2 and gold nanoparticles (NPs) on a zirconia support (Au/ZrO2–Ni(OH)2). The three important ether bond types consisting of α-O-4, β-O-4, and 4-O-5 linkages can all be cleaved using this catalyst at reaction temperatures 40, 85 and 95 °C when under low-flux visible light irradiation. The Au NPs action as a light-harvesting antenna provided light-generated hot electrons that reduced Ni2+ to Ni0. The Ni0 was the active catalytic site where reductive cleavage of ether C–O bonds occurred while it was oxidized to Ni2+ to complete the catalysis cycle. The plasmonic antenna system with supported Ni(OH)2 exhibited better ability for the catalytic reductive ether cleavages under visible light irradiation compared to photocata-lysts of Au NPs and Ni2+ ions immobilized on alumina fibers.

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