Surface Water Dependent Properties of Sulfur-Rich Molybdenum Sulfides: Electrolyteless Gas Phase Water Splitting
© 2017 American Chemical Society. Sulfur-rich molybdenum sulfides are an emerging class of inorganic coordination polymers that are predominantly utilized for their superior catalytic properties. Here we investigate surface water dependent properties of sulfur-rich MoSx (x = 32/3) and its interactio...
| Main Authors: | , , , , , , , , , , , , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
American Chemical Society (ACS)
2021
|
| Online Access: | https://hdl.handle.net/1721.1/133922 |
| _version_ | 1811093326572552192 |
|---|---|
| author | Daeneke, Torben Dahr, Nripen Atkin, Paul Clark, Rhiannon M Harrison, Christopher J Brkljača, Robert Pillai, Naresh Zhang, Bao Yue Zavabeti, Ali Ippolito, Samuel J Berean, Kyle J Ou, Jian Zhen Strano, Michael S Kalantar-zadeh, Kourosh |
| author2 | Massachusetts Institute of Technology. Department of Chemical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Chemical Engineering Daeneke, Torben Dahr, Nripen Atkin, Paul Clark, Rhiannon M Harrison, Christopher J Brkljača, Robert Pillai, Naresh Zhang, Bao Yue Zavabeti, Ali Ippolito, Samuel J Berean, Kyle J Ou, Jian Zhen Strano, Michael S Kalantar-zadeh, Kourosh |
| author_sort | Daeneke, Torben |
| collection | MIT |
| description | © 2017 American Chemical Society. Sulfur-rich molybdenum sulfides are an emerging class of inorganic coordination polymers that are predominantly utilized for their superior catalytic properties. Here we investigate surface water dependent properties of sulfur-rich MoSx (x = 32/3) and its interaction with water vapor. We report that MoSx is a highly hygroscopic semiconductor, which can reversibly bind up to 0.9 H2O molecule per Mo. The presence of surface water is found to have a profound influence on the semiconductor's properties, modulating the material's photoluminescence by over 1 order of magnitude, in transition from dry to moist ambient. Furthermore, the conductivity of a MoSx-based moisture sensor is modulated in excess of 2 orders of magnitude for 30% increase in humidity. As the core application, we utilize the discovered properties of MoSx to develop an electrolyteless water splitting photocatalyst that relies entirely on the hygroscopic nature of MoSx as the water source. The catalyst is formulated as an ink that can be coated onto insulating substrates, such as glass, leading to efficient hydrogen and oxygen evolution from water vapor. The concept has the potential to be widely adopted for future solar fuel production. |
| first_indexed | 2024-09-23T15:43:28Z |
| format | Article |
| id | mit-1721.1/133922 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T15:43:28Z |
| publishDate | 2021 |
| publisher | American Chemical Society (ACS) |
| record_format | dspace |
| spelling | mit-1721.1/1339222023-10-06T19:48:37Z Surface Water Dependent Properties of Sulfur-Rich Molybdenum Sulfides: Electrolyteless Gas Phase Water Splitting Daeneke, Torben Dahr, Nripen Atkin, Paul Clark, Rhiannon M Harrison, Christopher J Brkljača, Robert Pillai, Naresh Zhang, Bao Yue Zavabeti, Ali Ippolito, Samuel J Berean, Kyle J Ou, Jian Zhen Strano, Michael S Kalantar-zadeh, Kourosh Massachusetts Institute of Technology. Department of Chemical Engineering © 2017 American Chemical Society. Sulfur-rich molybdenum sulfides are an emerging class of inorganic coordination polymers that are predominantly utilized for their superior catalytic properties. Here we investigate surface water dependent properties of sulfur-rich MoSx (x = 32/3) and its interaction with water vapor. We report that MoSx is a highly hygroscopic semiconductor, which can reversibly bind up to 0.9 H2O molecule per Mo. The presence of surface water is found to have a profound influence on the semiconductor's properties, modulating the material's photoluminescence by over 1 order of magnitude, in transition from dry to moist ambient. Furthermore, the conductivity of a MoSx-based moisture sensor is modulated in excess of 2 orders of magnitude for 30% increase in humidity. As the core application, we utilize the discovered properties of MoSx to develop an electrolyteless water splitting photocatalyst that relies entirely on the hygroscopic nature of MoSx as the water source. The catalyst is formulated as an ink that can be coated onto insulating substrates, such as glass, leading to efficient hydrogen and oxygen evolution from water vapor. The concept has the potential to be widely adopted for future solar fuel production. 2021-10-27T19:57:13Z 2021-10-27T19:57:13Z 2017 2019-09-13T12:43:21Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/133922 en 10.1021/ACSNANO.7B01632 ACS Nano Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Chemical Society (ACS) ACS |
| spellingShingle | Daeneke, Torben Dahr, Nripen Atkin, Paul Clark, Rhiannon M Harrison, Christopher J Brkljača, Robert Pillai, Naresh Zhang, Bao Yue Zavabeti, Ali Ippolito, Samuel J Berean, Kyle J Ou, Jian Zhen Strano, Michael S Kalantar-zadeh, Kourosh Surface Water Dependent Properties of Sulfur-Rich Molybdenum Sulfides: Electrolyteless Gas Phase Water Splitting |
| title | Surface Water Dependent Properties of Sulfur-Rich Molybdenum Sulfides: Electrolyteless Gas Phase Water Splitting |
| title_full | Surface Water Dependent Properties of Sulfur-Rich Molybdenum Sulfides: Electrolyteless Gas Phase Water Splitting |
| title_fullStr | Surface Water Dependent Properties of Sulfur-Rich Molybdenum Sulfides: Electrolyteless Gas Phase Water Splitting |
| title_full_unstemmed | Surface Water Dependent Properties of Sulfur-Rich Molybdenum Sulfides: Electrolyteless Gas Phase Water Splitting |
| title_short | Surface Water Dependent Properties of Sulfur-Rich Molybdenum Sulfides: Electrolyteless Gas Phase Water Splitting |
| title_sort | surface water dependent properties of sulfur rich molybdenum sulfides electrolyteless gas phase water splitting |
| url | https://hdl.handle.net/1721.1/133922 |
| work_keys_str_mv | AT daeneketorben surfacewaterdependentpropertiesofsulfurrichmolybdenumsulfideselectrolytelessgasphasewatersplitting AT dahrnripen surfacewaterdependentpropertiesofsulfurrichmolybdenumsulfideselectrolytelessgasphasewatersplitting AT atkinpaul surfacewaterdependentpropertiesofsulfurrichmolybdenumsulfideselectrolytelessgasphasewatersplitting AT clarkrhiannonm surfacewaterdependentpropertiesofsulfurrichmolybdenumsulfideselectrolytelessgasphasewatersplitting AT harrisonchristopherj surfacewaterdependentpropertiesofsulfurrichmolybdenumsulfideselectrolytelessgasphasewatersplitting AT brkljacarobert surfacewaterdependentpropertiesofsulfurrichmolybdenumsulfideselectrolytelessgasphasewatersplitting AT pillainaresh surfacewaterdependentpropertiesofsulfurrichmolybdenumsulfideselectrolytelessgasphasewatersplitting AT zhangbaoyue surfacewaterdependentpropertiesofsulfurrichmolybdenumsulfideselectrolytelessgasphasewatersplitting AT zavabetiali surfacewaterdependentpropertiesofsulfurrichmolybdenumsulfideselectrolytelessgasphasewatersplitting AT ippolitosamuelj surfacewaterdependentpropertiesofsulfurrichmolybdenumsulfideselectrolytelessgasphasewatersplitting AT bereankylej surfacewaterdependentpropertiesofsulfurrichmolybdenumsulfideselectrolytelessgasphasewatersplitting AT oujianzhen surfacewaterdependentpropertiesofsulfurrichmolybdenumsulfideselectrolytelessgasphasewatersplitting AT stranomichaels surfacewaterdependentpropertiesofsulfurrichmolybdenumsulfideselectrolytelessgasphasewatersplitting AT kalantarzadehkourosh surfacewaterdependentpropertiesofsulfurrichmolybdenumsulfideselectrolytelessgasphasewatersplitting |