Investigating the role of undercoordinated Pt sites at the surface of layered PtTe2 for methanol decomposition
Abstract Transition metal dichalcogenides, by virtue of their two-dimensional structures, could provide the largest active surface for reactions with minimal materials consumed, which has long been pursued in the design of ideal catalysts. Nevertheless, their structurally perfect basal planes are ty...
| Main Authors: | , , , , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2024-01-01
|
| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-024-44840-z |
| _version_ | 1797276399753494528 |
|---|---|
| author | Jing-Wen Hsueh Lai-Hsiang Kuo Po-Han Chen Wan-Hsin Chen Chi-Yao Chuang Chia-Nung Kuo Chin-Shan Lue Yu-Ling Lai Bo-Hong Liu Chia-Hsin Wang Yao-Jane Hsu Chun-Liang Lin Jyh-Pin Chou Meng-Fan Luo |
| author_facet | Jing-Wen Hsueh Lai-Hsiang Kuo Po-Han Chen Wan-Hsin Chen Chi-Yao Chuang Chia-Nung Kuo Chin-Shan Lue Yu-Ling Lai Bo-Hong Liu Chia-Hsin Wang Yao-Jane Hsu Chun-Liang Lin Jyh-Pin Chou Meng-Fan Luo |
| author_sort | Jing-Wen Hsueh |
| collection | DOAJ |
| description | Abstract Transition metal dichalcogenides, by virtue of their two-dimensional structures, could provide the largest active surface for reactions with minimal materials consumed, which has long been pursued in the design of ideal catalysts. Nevertheless, their structurally perfect basal planes are typically inert; their surface defects, such as under-coordinated atoms at the surfaces or edges, can instead serve as catalytically active centers. Here we show a reaction probability > 90 % for adsorbed methanol (CH3OH) on under-coordinated Pt sites at surface Te vacancies, produced with Ar+ bombardment, on layered PtTe2 — approximately 60 % of the methanol decompose to surface intermediates CHxO (x = 2, 3) and 35 % to CHx (x = 1, 2), and an ultimate production of gaseous molecular hydrogen, methane, water and formaldehyde. The characteristic reactivity is attributed to both the triangular positioning and varied degrees of oxidation of the under-coordinated Pt at Te vacancies. |
| first_indexed | 2024-03-07T15:27:46Z |
| format | Article |
| id | doaj.art-689d5f4e22384afba7e9ed409c91251f |
| institution | Directory Open Access Journal |
| issn | 2041-1723 |
| language | English |
| last_indexed | 2024-03-07T15:27:46Z |
| publishDate | 2024-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj.art-689d5f4e22384afba7e9ed409c91251f2024-03-05T16:35:47ZengNature PortfolioNature Communications2041-17232024-01-0115111310.1038/s41467-024-44840-zInvestigating the role of undercoordinated Pt sites at the surface of layered PtTe2 for methanol decompositionJing-Wen Hsueh0Lai-Hsiang Kuo1Po-Han Chen2Wan-Hsin Chen3Chi-Yao Chuang4Chia-Nung Kuo5Chin-Shan Lue6Yu-Ling Lai7Bo-Hong Liu8Chia-Hsin Wang9Yao-Jane Hsu10Chun-Liang Lin11Jyh-Pin Chou12Meng-Fan Luo13Department of Physics, National Central UniversityDepartment of Physics, National Central UniversityDepartment of Materials Science and Engineering, National Tsing Hua UniversityDepartment of Electrophysics, National Yang Ming Chiao Tung UniversityDepartment of Electrophysics, National Yang Ming Chiao Tung UniversityDepartment of Physics, National Cheng Kung UniversityDepartment of Physics, National Cheng Kung UniversityNational Synchrotron Radiation Research CenterNational Synchrotron Radiation Research CenterNational Synchrotron Radiation Research CenterNational Synchrotron Radiation Research CenterDepartment of Electrophysics, National Yang Ming Chiao Tung UniversityDepartment of Physics, National Changhua University of EducationDepartment of Physics, National Central UniversityAbstract Transition metal dichalcogenides, by virtue of their two-dimensional structures, could provide the largest active surface for reactions with minimal materials consumed, which has long been pursued in the design of ideal catalysts. Nevertheless, their structurally perfect basal planes are typically inert; their surface defects, such as under-coordinated atoms at the surfaces or edges, can instead serve as catalytically active centers. Here we show a reaction probability > 90 % for adsorbed methanol (CH3OH) on under-coordinated Pt sites at surface Te vacancies, produced with Ar+ bombardment, on layered PtTe2 — approximately 60 % of the methanol decompose to surface intermediates CHxO (x = 2, 3) and 35 % to CHx (x = 1, 2), and an ultimate production of gaseous molecular hydrogen, methane, water and formaldehyde. The characteristic reactivity is attributed to both the triangular positioning and varied degrees of oxidation of the under-coordinated Pt at Te vacancies.https://doi.org/10.1038/s41467-024-44840-z |
| spellingShingle | Jing-Wen Hsueh Lai-Hsiang Kuo Po-Han Chen Wan-Hsin Chen Chi-Yao Chuang Chia-Nung Kuo Chin-Shan Lue Yu-Ling Lai Bo-Hong Liu Chia-Hsin Wang Yao-Jane Hsu Chun-Liang Lin Jyh-Pin Chou Meng-Fan Luo Investigating the role of undercoordinated Pt sites at the surface of layered PtTe2 for methanol decomposition Nature Communications |
| title | Investigating the role of undercoordinated Pt sites at the surface of layered PtTe2 for methanol decomposition |
| title_full | Investigating the role of undercoordinated Pt sites at the surface of layered PtTe2 for methanol decomposition |
| title_fullStr | Investigating the role of undercoordinated Pt sites at the surface of layered PtTe2 for methanol decomposition |
| title_full_unstemmed | Investigating the role of undercoordinated Pt sites at the surface of layered PtTe2 for methanol decomposition |
| title_short | Investigating the role of undercoordinated Pt sites at the surface of layered PtTe2 for methanol decomposition |
| title_sort | investigating the role of undercoordinated pt sites at the surface of layered ptte2 for methanol decomposition |
| url | https://doi.org/10.1038/s41467-024-44840-z |
| work_keys_str_mv | AT jingwenhsueh investigatingtheroleofundercoordinatedptsitesatthesurfaceoflayeredptte2formethanoldecomposition AT laihsiangkuo investigatingtheroleofundercoordinatedptsitesatthesurfaceoflayeredptte2formethanoldecomposition AT pohanchen investigatingtheroleofundercoordinatedptsitesatthesurfaceoflayeredptte2formethanoldecomposition AT wanhsinchen investigatingtheroleofundercoordinatedptsitesatthesurfaceoflayeredptte2formethanoldecomposition AT chiyaochuang investigatingtheroleofundercoordinatedptsitesatthesurfaceoflayeredptte2formethanoldecomposition AT chianungkuo investigatingtheroleofundercoordinatedptsitesatthesurfaceoflayeredptte2formethanoldecomposition AT chinshanlue investigatingtheroleofundercoordinatedptsitesatthesurfaceoflayeredptte2formethanoldecomposition AT yulinglai investigatingtheroleofundercoordinatedptsitesatthesurfaceoflayeredptte2formethanoldecomposition AT bohongliu investigatingtheroleofundercoordinatedptsitesatthesurfaceoflayeredptte2formethanoldecomposition AT chiahsinwang investigatingtheroleofundercoordinatedptsitesatthesurfaceoflayeredptte2formethanoldecomposition AT yaojanehsu investigatingtheroleofundercoordinatedptsitesatthesurfaceoflayeredptte2formethanoldecomposition AT chunlianglin investigatingtheroleofundercoordinatedptsitesatthesurfaceoflayeredptte2formethanoldecomposition AT jyhpinchou investigatingtheroleofundercoordinatedptsitesatthesurfaceoflayeredptte2formethanoldecomposition AT mengfanluo investigatingtheroleofundercoordinatedptsitesatthesurfaceoflayeredptte2formethanoldecomposition |