High capacitance of surface-modified 2D titanium carbide in acidic electrolyte
The electrochemical behavior of Ti3C2, a two-dimensional titanium carbide from the MXene family, in H2SO4 electrolyte is reported. To demonstrate the effect of surface chemistry on capacitive performance, Ti3C2 was modified by delamination or intercalation treatments. Electrochemical testing reveale...
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| Veröffentlicht in: | Electrochemistry communications 2014-11, Vol.48, p.118-122 |
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| container_title | Electrochemistry communications |
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| creator | Dall'Agnese, Yohan Lukatskaya, Maria R. Cook, Kevin M. Taberna, Pierre-Louis Gogotsi, Yury Simon, Patrice |
| description | The electrochemical behavior of Ti3C2, a two-dimensional titanium carbide from the MXene family, in H2SO4 electrolyte is reported. To demonstrate the effect of surface chemistry on capacitive performance, Ti3C2 was modified by delamination or intercalation treatments. Electrochemical testing revealed an increase in capacitance, which was attributed to oxygen-containing functional groups. An extraordinary high intercalation capacitance of 415F·cm−3 at 5A·g−1 was obtained from electrodes with a specific surface area of just 98m2·g−1. Values up to 520F·cm−3 were recorded for delaminated MXene films at 2mV·s−1. This study highlights that the behavior of materials from the large family of two-dimensional MXene can be tuned by suitable modification of their surface chemistry.
•Surface chemistry of two-dimensional Ti3C2 has been modified.•XPS analysis confirms replacement of terminal F-groups by oxygenated groups.•We demonstrate the contribution of pseudocapacitance mechanism.•We report excellent volumetric capacitance of 520F·cm−3. |
| doi_str_mv | 10.1016/j.elecom.2014.09.002 |
| format | Article |
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•Surface chemistry of two-dimensional Ti3C2 has been modified.•XPS analysis confirms replacement of terminal F-groups by oxygenated groups.•We demonstrate the contribution of pseudocapacitance mechanism.•We report excellent volumetric capacitance of 520F·cm−3.</description><subject>Applied sciences</subject><subject>Capacitors. Resistors. Filters</subject><subject>Electrical engineering. Electrical power engineering</subject><subject>Electrochemical capacitors</subject><subject>Engineering Sciences</subject><subject>Exact sciences and technology</subject><subject>Materials</subject><subject>Surface chemistry</subject><subject>Two-dimensional materials</subject><subject>Various equipment and components</subject><subject>XPS</subject><issn>1388-2481</issn><issn>1873-1902</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNp9kM9PwyAUx4nRxDn9Dzxw8eCh9QFdCxeTZf6YyaIXPRNGH46lXRfoluy_l6bGoxcgj8_3PfgQcssgZ8DKh22ODdquzTmwIgeVA_AzMmGyEhlTwM_TWUiZ8UKyS3IV4xaAcaXEhLwv_feGWrM31vdmZ5F2jsZDcMZi1na1dx5ryp9oP1z7Q5vYsPY1Ur-jKVN7S4fhfeiaU4_X5MKZJuLN7z4lXy_Pn4tltvp4fVvMV5mdMdVnJRdcClXb9GCZFnSCz0pIJVwLpyRbQyWLEisnnS2N4kyAqRzamQFlhRNTcj_23ZhG74NvTTjpzni9nK_0UIPUWbECjiyxxcja0MUY0P0FGOjBn97q0Z8e_GlQOvlLsbsxtjfRmsaFZMfHvyyXCgQUkLjHkcP036PHoKP1mEzWPiQvuu78_4N-AJVRhlc</recordid><startdate>20141101</startdate><enddate>20141101</enddate><creator>Dall'Agnese, Yohan</creator><creator>Lukatskaya, Maria R.</creator><creator>Cook, Kevin M.</creator><creator>Taberna, Pierre-Louis</creator><creator>Gogotsi, Yury</creator><creator>Simon, Patrice</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>1XC</scope><scope>VOOES</scope><orcidid>https://orcid.org/0000-0002-5310-0481</orcidid><orcidid>https://orcid.org/0000-0002-0461-8268</orcidid></search><sort><creationdate>20141101</creationdate><title>High capacitance of surface-modified 2D titanium carbide in acidic electrolyte</title><author>Dall'Agnese, Yohan ; Lukatskaya, Maria R. ; Cook, Kevin M. ; Taberna, Pierre-Louis ; Gogotsi, Yury ; Simon, Patrice</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c519t-6232839dc2018c20ef32560839eb3f981b07846e7f8fc6a92130a7fec5a09c3f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Applied sciences</topic><topic>Capacitors. Resistors. Filters</topic><topic>Electrical engineering. Electrical power engineering</topic><topic>Electrochemical capacitors</topic><topic>Engineering Sciences</topic><topic>Exact sciences and technology</topic><topic>Materials</topic><topic>Surface chemistry</topic><topic>Two-dimensional materials</topic><topic>Various equipment and components</topic><topic>XPS</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Dall'Agnese, Yohan</creatorcontrib><creatorcontrib>Lukatskaya, Maria R.</creatorcontrib><creatorcontrib>Cook, Kevin M.</creatorcontrib><creatorcontrib>Taberna, Pierre-Louis</creatorcontrib><creatorcontrib>Gogotsi, Yury</creatorcontrib><creatorcontrib>Simon, Patrice</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Hyper Article en Ligne (HAL)</collection><collection>Hyper Article en Ligne (HAL) (Open Access)</collection><jtitle>Electrochemistry communications</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Dall'Agnese, Yohan</au><au>Lukatskaya, Maria R.</au><au>Cook, Kevin M.</au><au>Taberna, Pierre-Louis</au><au>Gogotsi, Yury</au><au>Simon, Patrice</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>High capacitance of surface-modified 2D titanium carbide in acidic electrolyte</atitle><jtitle>Electrochemistry communications</jtitle><date>2014-11-01</date><risdate>2014</risdate><volume>48</volume><spage>118</spage><epage>122</epage><pages>118-122</pages><issn>1388-2481</issn><eissn>1873-1902</eissn><abstract>The electrochemical behavior of Ti3C2, a two-dimensional titanium carbide from the MXene family, in H2SO4 electrolyte is reported. To demonstrate the effect of surface chemistry on capacitive performance, Ti3C2 was modified by delamination or intercalation treatments. Electrochemical testing revealed an increase in capacitance, which was attributed to oxygen-containing functional groups. An extraordinary high intercalation capacitance of 415F·cm−3 at 5A·g−1 was obtained from electrodes with a specific surface area of just 98m2·g−1. Values up to 520F·cm−3 were recorded for delaminated MXene films at 2mV·s−1. This study highlights that the behavior of materials from the large family of two-dimensional MXene can be tuned by suitable modification of their surface chemistry.
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| subjects | Applied sciences Capacitors. Resistors. Filters Electrical engineering. Electrical power engineering Electrochemical capacitors Engineering Sciences Exact sciences and technology Materials Surface chemistry Two-dimensional materials Various equipment and components XPS |
| title | High capacitance of surface-modified 2D titanium carbide in acidic electrolyte |
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