Selective coordination activation regulating the selectivity for photocatalytic hydrogenation of α, β-unsaturated aldehyde over Pd/MIL-100(FeaCub) - Details

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Here,　the　mixed　metal　nodes　MOFs,　Pd/MIL-100(FeaCub),　were　constructed　as　photocatalysts　for　hydrogenation　of　α,　β-unsaturated　aldehyde　(UAL)　under　visible　light.　1　wt%　Pd/MIL-100(Fe0.81Cu0.19)　can　convert　a　range　of　UAL　to　saturated　aldehydes　(SAL)　with　a　high　efficiency　(≈　100　%)　and　selectivity　(≈　98　%).　The　results　of　XPS　and　in　situ　DRIFTS　reveal　that　UAL　can　be　selectively　activated　via　a　coordination　of　-C[dbnd]C-　on　Cu2+　sites,　determining　the　high　selectivity　of　the　photocatalytic　reaction.　The　mixed　metal　nodes　and　Pd　clusters　can　improve　the　transformation　and　separation　of　photogenerated　electrons-holes.　EPR　result　suggests　that　photogenerated　carriers　can　facilitate　the　generation　of　H·on　Pd/MIL-100(Fe0.81Cu0.19),　enhancing　the　catalytic　activity.　A　possible　mechanism　is　proposed　for　elucidating　the　catalytic　processes　at　the　molecular　level.　This　work　provides　a　valuable　strategy　for　tailoring　the　selectivity　of　photocatalytic　hydrogenation　via　selective　coordination　activation.　©　2023　Elsevier　B.V.

Keyword：

Aldehydes Catalyst activity Chemical activation Coordination reactions Copper alloys Hydrogenation Iron alloys

Community：

[ 1 ] [Wang, Zhiwen]State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fujian, Fuzhou; 350116, China
[ 2 ] [Kang, Yueyue]State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fujian, Fuzhou; 350116, China
[ 3 ] [Shi, Yingzhang]State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fujian, Fuzhou; 350116, China
[ 4 ] [Liu, Cheng]State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fujian, Fuzhou; 350116, China
[ 5 ] [Liu, Yunni]Department of Chemistry, Renmin University of China, Beijing; 100872, China
[ 6 ] [Lin, Jun]Department of Chemistry, Renmin University of China, Beijing; 100872, China
[ 7 ] [Lin, Jun]State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fujian, Fuzhou; 350116, China
[ 8 ] [Bi, Jinhong]State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fujian, Fuzhou; 350116, China
[ 9 ] [Bi, Jinhong]Department of Environmental Science and Engineering, Fuzhou University, Fujian, Minhou; 350108, China
[ 10 ] [Wu, Ling]State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fujian, Fuzhou; 350116, China

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Source ：

Applied Catalysis B: Environmental

ISSN： 0926-3373

Year： 2024

Volume： 340

2 0 . 3 0 0

JCR@2023

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ESI Highly Cited Papers on the List： 0 Unfold All

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30 Days PV： 4

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