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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2021
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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) |
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DOAJ |
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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 |
_version_ |
1718372966376407040 |