Excellent electrocatalytic performance of metal-free thiophene–sulfur covalent organic frameworks for hydrogen evolution in alkaline medium
The application of covalent organic frameworks (COFs) for the electrocatalytic hydrogen evolution reaction (HER) has received more attention. However, their poor catalytic performance in alkaline media is problematic for practical application. Herein, we report the synthesis of two metal-free 2D COF...
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| Veröffentlicht in: | Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2022-05, Vol.10 (18), p.10092-10097 |
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| container_title | Journal of materials chemistry. A, Materials for energy and sustainability |
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| creator | Ma, Yunchao Fu, Yue Jiang, Wei Wu, Yuanyuan Liu, Chunbo Che, Guangbo Fang, Qianrong |
| description | The application of covalent organic frameworks (COFs) for the electrocatalytic hydrogen evolution reaction (HER) has received more attention. However, their poor catalytic performance in alkaline media is problematic for practical application. Herein, we report the synthesis of two metal-free 2D COFs as efficient electrocatalysts for the hydrogen evolution reaction in an alkaline solution. The overpotentials are 136 and 91 at 10 mA cm
−2
with small Tafel slopes in alkaline media, respectively. The superior HER activity is due to the thiophene-S units, which have higher conductivity, charge mobility and synergy with one-dimensional nanochannels of 2D COFs. The experimental identification is supported by density functional theory (DFT) calculations. This work demonstrates that rational design of unique thiophene-based COFs can effectively improve their HER activities, which holds great potential for practical applications in water splitting. |
| doi_str_mv | 10.1039/D2TA00659F |
| format | Article |
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−2
with small Tafel slopes in alkaline media, respectively. The superior HER activity is due to the thiophene-S units, which have higher conductivity, charge mobility and synergy with one-dimensional nanochannels of 2D COFs. The experimental identification is supported by density functional theory (DFT) calculations. This work demonstrates that rational design of unique thiophene-based COFs can effectively improve their HER activities, which holds great potential for practical applications in water splitting.</description><identifier>ISSN: 2050-7488</identifier><identifier>EISSN: 2050-7496</identifier><identifier>DOI: 10.1039/D2TA00659F</identifier><language>eng</language><publisher>Cambridge: Royal Society of Chemistry</publisher><subject>Density functional theory ; Electrocatalysts ; Evolution ; Hydrogen ; Hydrogen evolution reactions ; Nanochannels ; Sulfur ; Water splitting</subject><ispartof>Journal of materials chemistry. A, Materials for energy and sustainability, 2022-05, Vol.10 (18), p.10092-10097</ispartof><rights>Copyright Royal Society of Chemistry 2022</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c189t-b7eb793dc933194c0cee7a4eb99b23da50436910b28fc4b40cd1de66c861bf563</citedby><cites>FETCH-LOGICAL-c189t-b7eb793dc933194c0cee7a4eb99b23da50436910b28fc4b40cd1de66c861bf563</cites><orcidid>0000-0002-9765-9906 ; 0000-0003-3365-5508 ; 0000-0002-3138-2086</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Ma, Yunchao</creatorcontrib><creatorcontrib>Fu, Yue</creatorcontrib><creatorcontrib>Jiang, Wei</creatorcontrib><creatorcontrib>Wu, Yuanyuan</creatorcontrib><creatorcontrib>Liu, Chunbo</creatorcontrib><creatorcontrib>Che, Guangbo</creatorcontrib><creatorcontrib>Fang, Qianrong</creatorcontrib><title>Excellent electrocatalytic performance of metal-free thiophene–sulfur covalent organic frameworks for hydrogen evolution in alkaline medium</title><title>Journal of materials chemistry. A, Materials for energy and sustainability</title><description>The application of covalent organic frameworks (COFs) for the electrocatalytic hydrogen evolution reaction (HER) has received more attention. However, their poor catalytic performance in alkaline media is problematic for practical application. Herein, we report the synthesis of two metal-free 2D COFs as efficient electrocatalysts for the hydrogen evolution reaction in an alkaline solution. The overpotentials are 136 and 91 at 10 mA cm
−2
with small Tafel slopes in alkaline media, respectively. The superior HER activity is due to the thiophene-S units, which have higher conductivity, charge mobility and synergy with one-dimensional nanochannels of 2D COFs. The experimental identification is supported by density functional theory (DFT) calculations. This work demonstrates that rational design of unique thiophene-based COFs can effectively improve their HER activities, which holds great potential for practical applications in water splitting.</description><subject>Density functional theory</subject><subject>Electrocatalysts</subject><subject>Evolution</subject><subject>Hydrogen</subject><subject>Hydrogen evolution reactions</subject><subject>Nanochannels</subject><subject>Sulfur</subject><subject>Water splitting</subject><issn>2050-7488</issn><issn>2050-7496</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNpFkLFOwzAQhi0EElXpwhNYYkMK2HHixGNVWkCqxFLmyHHObVrHLo5T6MYLMPGGPAkpRXDLnXTffSf9CF1SckMJE7d38WJMCE_F7AQNYpKSKEsEP_2b8_wcjdp2TfrKe1CIAfqYvikwBmzAYEAF75QM0uxDrfAWvHa-kVYBdho30C8i7QFwWNVuuwILX--fbWd057FyO_mjcX4pbX-tvWzg1flNi3sLXu0r75ZgMeyc6ULtLK4tlmYjTW2hl1d111ygMy1NC6PfPkTPs-li8hDNn-4fJ-N5pGguQlRmUGaCVUowRkWiiALIZAKlEGXMKpmShHFBSRnnWiVlQlRFK-Bc5ZyWOuVsiK6O3q13Lx20oVi7ztv-ZRFzTtMs4fxAXR8p5V3betDF1teN9PuCkuKQePGfOPsGIMR4Mg</recordid><startdate>20220510</startdate><enddate>20220510</enddate><creator>Ma, Yunchao</creator><creator>Fu, Yue</creator><creator>Jiang, Wei</creator><creator>Wu, Yuanyuan</creator><creator>Liu, Chunbo</creator><creator>Che, Guangbo</creator><creator>Fang, Qianrong</creator><general>Royal Society of Chemistry</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7SR</scope><scope>7ST</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>C1K</scope><scope>JG9</scope><scope>L7M</scope><scope>SOI</scope><orcidid>https://orcid.org/0000-0002-9765-9906</orcidid><orcidid>https://orcid.org/0000-0003-3365-5508</orcidid><orcidid>https://orcid.org/0000-0002-3138-2086</orcidid></search><sort><creationdate>20220510</creationdate><title>Excellent electrocatalytic performance of metal-free thiophene–sulfur covalent organic frameworks for hydrogen evolution in alkaline medium</title><author>Ma, Yunchao ; Fu, Yue ; Jiang, Wei ; Wu, Yuanyuan ; Liu, Chunbo ; Che, Guangbo ; Fang, Qianrong</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c189t-b7eb793dc933194c0cee7a4eb99b23da50436910b28fc4b40cd1de66c861bf563</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Density functional theory</topic><topic>Electrocatalysts</topic><topic>Evolution</topic><topic>Hydrogen</topic><topic>Hydrogen evolution reactions</topic><topic>Nanochannels</topic><topic>Sulfur</topic><topic>Water splitting</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ma, Yunchao</creatorcontrib><creatorcontrib>Fu, Yue</creatorcontrib><creatorcontrib>Jiang, Wei</creatorcontrib><creatorcontrib>Wu, Yuanyuan</creatorcontrib><creatorcontrib>Liu, Chunbo</creatorcontrib><creatorcontrib>Che, Guangbo</creatorcontrib><creatorcontrib>Fang, Qianrong</creatorcontrib><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Environment Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Environment Abstracts</collection><jtitle>Journal of materials chemistry. A, Materials for energy and sustainability</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ma, Yunchao</au><au>Fu, Yue</au><au>Jiang, Wei</au><au>Wu, Yuanyuan</au><au>Liu, Chunbo</au><au>Che, Guangbo</au><au>Fang, Qianrong</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Excellent electrocatalytic performance of metal-free thiophene–sulfur covalent organic frameworks for hydrogen evolution in alkaline medium</atitle><jtitle>Journal of materials chemistry. A, Materials for energy and sustainability</jtitle><date>2022-05-10</date><risdate>2022</risdate><volume>10</volume><issue>18</issue><spage>10092</spage><epage>10097</epage><pages>10092-10097</pages><issn>2050-7488</issn><eissn>2050-7496</eissn><abstract>The application of covalent organic frameworks (COFs) for the electrocatalytic hydrogen evolution reaction (HER) has received more attention. However, their poor catalytic performance in alkaline media is problematic for practical application. Herein, we report the synthesis of two metal-free 2D COFs as efficient electrocatalysts for the hydrogen evolution reaction in an alkaline solution. The overpotentials are 136 and 91 at 10 mA cm
−2
with small Tafel slopes in alkaline media, respectively. The superior HER activity is due to the thiophene-S units, which have higher conductivity, charge mobility and synergy with one-dimensional nanochannels of 2D COFs. The experimental identification is supported by density functional theory (DFT) calculations. This work demonstrates that rational design of unique thiophene-based COFs can effectively improve their HER activities, which holds great potential for practical applications in water splitting.</abstract><cop>Cambridge</cop><pub>Royal Society of Chemistry</pub><doi>10.1039/D2TA00659F</doi><tpages>6</tpages><orcidid>https://orcid.org/0000-0002-9765-9906</orcidid><orcidid>https://orcid.org/0000-0003-3365-5508</orcidid><orcidid>https://orcid.org/0000-0002-3138-2086</orcidid></addata></record> |
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| issn | 2050-7488 2050-7496 |
| language | eng |
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| source | Royal Society Of Chemistry Journals 2008- |
| subjects | Density functional theory Electrocatalysts Evolution Hydrogen Hydrogen evolution reactions Nanochannels Sulfur Water splitting |
| title | Excellent electrocatalytic performance of metal-free thiophene–sulfur covalent organic frameworks for hydrogen evolution in alkaline medium |
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