Self-assembled monolayers enhance the efficiency of Pt single atom co-catalysts in photocatalytic H2 generation

Single atom (SA) catalysis, over the last 10 years, has become a forefront in heterogeneous catalysis, electrocatalysis, and most recently also in photocatalysis. Pt SAs on titania have been reported to be a highly effective co-catalyst in photocatalytic H2 generation. Most recently, for the synthes...

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Autores principales: Yue Wang, Imgon Hwang, Zhenni Wu, Patrik Schmuki
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Lenguaje:EN
Publicado: Elsevier 2021
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spelling oai:doaj.org-article:527b3560647740c2a1cd9f6c75e4d4f72021-12-04T04:33:23ZSelf-assembled monolayers enhance the efficiency of Pt single atom co-catalysts in photocatalytic H2 generation1388-248110.1016/j.elecom.2021.107166https://doaj.org/article/527b3560647740c2a1cd9f6c75e4d4f72021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1388248121002502https://doaj.org/toc/1388-2481Single atom (SA) catalysis, over the last 10 years, has become a forefront in heterogeneous catalysis, electrocatalysis, and most recently also in photocatalysis. Pt SAs on titania have been reported to be a highly effective co-catalyst in photocatalytic H2 generation. Most recently, for the synthesis of SA loading on titania surfaces, some simple immersion techniques have been described. Here we introduce a so far unexplored but evidently very effective approach to enhance the effectivity of Pt SA co-catalysts on anodic TiO2 layers. For this, we first decorate TiO2 surfaces with a partial coverage of headgroups of silane self-assembled monolayers (SAMs) and then deposit Pt SAs on this SAM modified surface. We observe a significantly enhanced photocatalytic activity for H2 generation using this sensitization of the surface with a modified SAM.Yue WangImgon HwangZhenni WuPatrik SchmukiElsevierarticleAnodic TiO2 layerSelf-assembled monolayers (SAMs)Pt single-atomsPhotocatalystH2 generationIndustrial electrochemistryTP250-261ChemistryQD1-999ENElectrochemistry Communications, Vol 133, Iss , Pp 107166- (2021)
institution DOAJ
collection DOAJ
language EN
topic Anodic TiO2 layer
Self-assembled monolayers (SAMs)
Pt single-atoms
Photocatalyst
H2 generation
Industrial electrochemistry
TP250-261
Chemistry
QD1-999
spellingShingle Anodic TiO2 layer
Self-assembled monolayers (SAMs)
Pt single-atoms
Photocatalyst
H2 generation
Industrial electrochemistry
TP250-261
Chemistry
QD1-999
Yue Wang
Imgon Hwang
Zhenni Wu
Patrik Schmuki
Self-assembled monolayers enhance the efficiency of Pt single atom co-catalysts in photocatalytic H2 generation
description Single atom (SA) catalysis, over the last 10 years, has become a forefront in heterogeneous catalysis, electrocatalysis, and most recently also in photocatalysis. Pt SAs on titania have been reported to be a highly effective co-catalyst in photocatalytic H2 generation. Most recently, for the synthesis of SA loading on titania surfaces, some simple immersion techniques have been described. Here we introduce a so far unexplored but evidently very effective approach to enhance the effectivity of Pt SA co-catalysts on anodic TiO2 layers. For this, we first decorate TiO2 surfaces with a partial coverage of headgroups of silane self-assembled monolayers (SAMs) and then deposit Pt SAs on this SAM modified surface. We observe a significantly enhanced photocatalytic activity for H2 generation using this sensitization of the surface with a modified SAM.
format article
author Yue Wang
Imgon Hwang
Zhenni Wu
Patrik Schmuki
author_facet Yue Wang
Imgon Hwang
Zhenni Wu
Patrik Schmuki
author_sort Yue Wang
title Self-assembled monolayers enhance the efficiency of Pt single atom co-catalysts in photocatalytic H2 generation
title_short Self-assembled monolayers enhance the efficiency of Pt single atom co-catalysts in photocatalytic H2 generation
title_full Self-assembled monolayers enhance the efficiency of Pt single atom co-catalysts in photocatalytic H2 generation
title_fullStr Self-assembled monolayers enhance the efficiency of Pt single atom co-catalysts in photocatalytic H2 generation
title_full_unstemmed Self-assembled monolayers enhance the efficiency of Pt single atom co-catalysts in photocatalytic H2 generation
title_sort self-assembled monolayers enhance the efficiency of pt single atom co-catalysts in photocatalytic h2 generation
publisher Elsevier
publishDate 2021
url https://doaj.org/article/527b3560647740c2a1cd9f6c75e4d4f7
work_keys_str_mv AT yuewang selfassembledmonolayersenhancetheefficiencyofptsingleatomcocatalystsinphotocatalytich2generation
AT imgonhwang selfassembledmonolayersenhancetheefficiencyofptsingleatomcocatalystsinphotocatalytich2generation
AT zhenniwu selfassembledmonolayersenhancetheefficiencyofptsingleatomcocatalystsinphotocatalytich2generation
AT patrikschmuki selfassembledmonolayersenhancetheefficiencyofptsingleatomcocatalystsinphotocatalytich2generation
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