Effects of Precursor Concentration on Dimensional Size, Defect State, and Gas Sensing Performance of MoS2 Sheets Synthesized by Hydrothermal Method
The objective of this study is to investigate effects of precursor concentration on dimensional size, defect state, and gas sensing performance of MoS2 sheets synthesized by hydrothermal method with various precursor concentrations (0.14–1.4 m) in fixed HCl solution (7 m). The MoS2 sheets show a def...
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| Veröffentlicht in: | Physica status solidi. A, Applications and materials science Applications and materials science, 2018-10, Vol.215 (20), p.n/a |
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| container_title | Physica status solidi. A, Applications and materials science |
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| creator | Lee, Chang Min Park, Geun Chul Ahn, Cheol Hyoun Choi, Jong Won Park, Chae Hee Cho, Hyung Koun Lim, Jun Hyung Joo, Jinho |
| description | The objective of this study is to investigate effects of precursor concentration on dimensional size, defect state, and gas sensing performance of MoS2 sheets synthesized by hydrothermal method with various precursor concentrations (0.14–1.4 m) in fixed HCl solution (7 m). The MoS2 sheets show a defect‐rich and strained structure. When precursor concentration is increased, dimensional size of the sheet is increased while the specific surface area of the sheet is decreased. The MoS2 sensor made with 0.14 m precursor solution exhibits superior sensing performance with high sensitivity (372%) and rapid recovery time ( |
| doi_str_mv | 10.1002/pssa.201800079 |
| format | Article |
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The authors investigate effects of precursor concentration on dimensional size, defect state, and gas sensing performance of MoS2 sheets synthesized by hydrothermal method with various precursor concentrations in fixed HCl solution. The results demonstrate that the morphology and defect state of MoS2 played a key role in the sensing behavior for NO2.</description><identifier>ISSN: 1862-6300</identifier><identifier>EISSN: 1862-6319</identifier><identifier>DOI: 10.1002/pssa.201800079</identifier><language>eng</language><publisher>Weinheim: Wiley Subscription Services, Inc</publisher><subject>Defects ; Detection ; gas sensor ; Gas sensors ; hydrothermal synthesis ; Molybdenum disulfide ; morphology ; MoS2 ; Nitrogen dioxide ; precursor concentration ; Precursors ; Recovery time ; Sheets ; Specific surface ; Surface area ; Synthesis</subject><ispartof>Physica status solidi. A, Applications and materials science, 2018-10, Vol.215 (20), p.n/a</ispartof><rights>2018 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim</rights><rights>2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fpssa.201800079$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fpssa.201800079$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,27901,27902,45550,45551</link.rule.ids></links><search><creatorcontrib>Lee, Chang Min</creatorcontrib><creatorcontrib>Park, Geun Chul</creatorcontrib><creatorcontrib>Ahn, Cheol Hyoun</creatorcontrib><creatorcontrib>Choi, Jong Won</creatorcontrib><creatorcontrib>Park, Chae Hee</creatorcontrib><creatorcontrib>Cho, Hyung Koun</creatorcontrib><creatorcontrib>Lim, Jun Hyung</creatorcontrib><creatorcontrib>Joo, Jinho</creatorcontrib><title>Effects of Precursor Concentration on Dimensional Size, Defect State, and Gas Sensing Performance of MoS2 Sheets Synthesized by Hydrothermal Method</title><title>Physica status solidi. A, Applications and materials science</title><description>The objective of this study is to investigate effects of precursor concentration on dimensional size, defect state, and gas sensing performance of MoS2 sheets synthesized by hydrothermal method with various precursor concentrations (0.14–1.4 m) in fixed HCl solution (7 m). The MoS2 sheets show a defect‐rich and strained structure. When precursor concentration is increased, dimensional size of the sheet is increased while the specific surface area of the sheet is decreased. The MoS2 sensor made with 0.14 m precursor solution exhibits superior sensing performance with high sensitivity (372%) and rapid recovery time (<16 min) at room temperature in a 500 ppm NO2 gas atmosphere due to enhanced active site resulting from the highest specific surface area. In addition, all MoS2 samples show a complete recovery after response to NO2 gas probably related to the defective and strained surface resulting from the use of HCl surfactant.
The authors investigate effects of precursor concentration on dimensional size, defect state, and gas sensing performance of MoS2 sheets synthesized by hydrothermal method with various precursor concentrations in fixed HCl solution. The results demonstrate that the morphology and defect state of MoS2 played a key role in the sensing behavior for NO2.</description><subject>Defects</subject><subject>Detection</subject><subject>gas sensor</subject><subject>Gas sensors</subject><subject>hydrothermal synthesis</subject><subject>Molybdenum disulfide</subject><subject>morphology</subject><subject>MoS2</subject><subject>Nitrogen dioxide</subject><subject>precursor concentration</subject><subject>Precursors</subject><subject>Recovery time</subject><subject>Sheets</subject><subject>Specific surface</subject><subject>Surface area</subject><subject>Synthesis</subject><issn>1862-6300</issn><issn>1862-6319</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNo9kFFrwjAUhcPYYM7tdc-Bva4uN01T-yjqdKBMiO8ltrda0cYlkdH9jf3hpTiEwM3J_e4J9xDyDGwAjPG3k3N6wBkMGWNpdkN6MJQ8kjFkt9c7Y_fkwbk9YyIRKfTI77SqsPCOmoquLBZn64ylY9MU2HirfW0aGs6kPmLjgtAHquoffKUT7Oao8toHpZuSzrSjqqOaLV2hrYw96mDTOS-N4lTtEMNHqm38Dl0wKemmpfO2tCY8BPhAl-h3pnwkd5U-OHz6r32yfp-ux_No8Tn7GI8W0TaOZRZJziQIyKCEkiWJLjLO0kRomWxKGFaahy5iJYo0hVLoTICQVdgbWJEmKcZ98nKxPVnzdUbn870527ChyzlwEcBUykBlF-q7PmCbn2x91LbNgeVd6HkXen4NPV8pNbqq-A_XyXi8</recordid><startdate>20181024</startdate><enddate>20181024</enddate><creator>Lee, Chang Min</creator><creator>Park, Geun Chul</creator><creator>Ahn, Cheol Hyoun</creator><creator>Choi, Jong Won</creator><creator>Park, Chae Hee</creator><creator>Cho, Hyung Koun</creator><creator>Lim, Jun Hyung</creator><creator>Joo, Jinho</creator><general>Wiley Subscription Services, Inc</general><scope>7SP</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20181024</creationdate><title>Effects of Precursor Concentration on Dimensional Size, Defect State, and Gas Sensing Performance of MoS2 Sheets Synthesized by Hydrothermal Method</title><author>Lee, Chang Min ; Park, Geun Chul ; Ahn, Cheol Hyoun ; Choi, Jong Won ; Park, Chae Hee ; Cho, Hyung Koun ; Lim, Jun Hyung ; Joo, Jinho</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-g3369-620614191d1d055ac920754a65bd18fa2614eef4c771d4a94146f04510c757e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Defects</topic><topic>Detection</topic><topic>gas sensor</topic><topic>Gas sensors</topic><topic>hydrothermal synthesis</topic><topic>Molybdenum disulfide</topic><topic>morphology</topic><topic>MoS2</topic><topic>Nitrogen dioxide</topic><topic>precursor concentration</topic><topic>Precursors</topic><topic>Recovery time</topic><topic>Sheets</topic><topic>Specific surface</topic><topic>Surface area</topic><topic>Synthesis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lee, Chang Min</creatorcontrib><creatorcontrib>Park, Geun Chul</creatorcontrib><creatorcontrib>Ahn, Cheol Hyoun</creatorcontrib><creatorcontrib>Choi, Jong Won</creatorcontrib><creatorcontrib>Park, Chae Hee</creatorcontrib><creatorcontrib>Cho, Hyung Koun</creatorcontrib><creatorcontrib>Lim, Jun Hyung</creatorcontrib><creatorcontrib>Joo, Jinho</creatorcontrib><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Physica status solidi. A, Applications and materials science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lee, Chang Min</au><au>Park, Geun Chul</au><au>Ahn, Cheol Hyoun</au><au>Choi, Jong Won</au><au>Park, Chae Hee</au><au>Cho, Hyung Koun</au><au>Lim, Jun Hyung</au><au>Joo, Jinho</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effects of Precursor Concentration on Dimensional Size, Defect State, and Gas Sensing Performance of MoS2 Sheets Synthesized by Hydrothermal Method</atitle><jtitle>Physica status solidi. A, Applications and materials science</jtitle><date>2018-10-24</date><risdate>2018</risdate><volume>215</volume><issue>20</issue><epage>n/a</epage><issn>1862-6300</issn><eissn>1862-6319</eissn><abstract>The objective of this study is to investigate effects of precursor concentration on dimensional size, defect state, and gas sensing performance of MoS2 sheets synthesized by hydrothermal method with various precursor concentrations (0.14–1.4 m) in fixed HCl solution (7 m). The MoS2 sheets show a defect‐rich and strained structure. When precursor concentration is increased, dimensional size of the sheet is increased while the specific surface area of the sheet is decreased. The MoS2 sensor made with 0.14 m precursor solution exhibits superior sensing performance with high sensitivity (372%) and rapid recovery time (<16 min) at room temperature in a 500 ppm NO2 gas atmosphere due to enhanced active site resulting from the highest specific surface area. In addition, all MoS2 samples show a complete recovery after response to NO2 gas probably related to the defective and strained surface resulting from the use of HCl surfactant.
The authors investigate effects of precursor concentration on dimensional size, defect state, and gas sensing performance of MoS2 sheets synthesized by hydrothermal method with various precursor concentrations in fixed HCl solution. The results demonstrate that the morphology and defect state of MoS2 played a key role in the sensing behavior for NO2.</abstract><cop>Weinheim</cop><pub>Wiley Subscription Services, Inc</pub><doi>10.1002/pssa.201800079</doi><tpages>5</tpages></addata></record> |
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| source | Wiley Online Library Journals Frontfile Complete |
| subjects | Defects Detection gas sensor Gas sensors hydrothermal synthesis Molybdenum disulfide morphology MoS2 Nitrogen dioxide precursor concentration Precursors Recovery time Sheets Specific surface Surface area Synthesis |
| title | Effects of Precursor Concentration on Dimensional Size, Defect State, and Gas Sensing Performance of MoS2 Sheets Synthesized by Hydrothermal Method |
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