Effect of hydrogen sources toward the CO2 photoreduction on boron decorated crystalline carbon nitride - Details

author：

Kong, Y. (Kong, Y..) ^[1] | Pan, J. (Pan, J..) ^[2] | Li, Y. (Li, Y..) ^[3] | Zhang, Y. (Zhang, Y..) ^[4] | Lin, W. (Lin, W..) ^[5]

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Abstract：

Photocatalytic　CO2　conversion　to　industrial　fuels　is　considered　an　effective　measure　to　solve　energy　and　environmental　problems.　Presently,　Catalysts　for　CO2　reduction　reaction　(CO2RR)　are　mostly　confined　to　metal-based　materials,　but　non-metal　materials　are　less　explored.　We　decorate　the　highly　crystalline　carbon　nitride,　i.e.,　poly(triazine)　imides　(PTI),　with　non-metallic　boron　(B)　to　obtain　two　B/PTI　catalysts:　Bi/PTI　with　B　being　deposited　into　the　six-fold　cavity　of　the　PTI,　and　Bs/PTI　with　B　substituting　for　C　in　PTI.　For　CO2RR,　Bi/PTI　follows　a　quasi　Mars-van　Krevelen　process,　but　the　high　exposure　of　Bi　results　in　an　overly　strong　interaction　with　intermediates,　inhibiting　the　reactivity.　In　contrast,　Bs/PTI　enhances　the　binding　with　intermediates　by　introducing　Lewis　acid-base　pairs　(B-N),　which　reduce　the　ring　conjugation　effect　and　induce　the　enrichment　of　electrons　at　the　pyridine　N.　Hence,　CO2　reduction　with　the　adsorbed　H*　(Ha)　hydrogenation　mechanism　in　Bs/PTI　has　a　significant　reactivity.　©　2024　Elsevier　B.V.

Keyword：

“Acceptance-donation” process CO2 reduction DFT Lewis acid-base pairs Quasi-MvK

Community：

[ 1 ] [Kong Y.]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
[ 2 ] [Pan J.]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
[ 3 ] [Li Y.]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
[ 4 ] [Li Y.]Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, Fujian, Xiamen, 361005, China
[ 5 ] [Zhang Y.]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
[ 6 ] [Zhang Y.]Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, Fujian, Xiamen, 361005, China
[ 7 ] [Lin W.]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
[ 8 ] [Lin W.]Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, Fujian, Xiamen, 361005, China

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Source ：

Applied Surface Science

ISSN： 0169-4332

Year： 2024

Volume： 669

6 . 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： 2

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