Synthesis of Ni-Doped Graphene Aerogels for Electrochemical Applications
Carbonaceous materials used in most electrochemical applications require high specific surface area, adequate pore size distribution, and high electrical conductivity to ensure good interaction with the electrolyte and fast electron transport. The development of transition metal doped graphene aerog...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-03-01
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| Series: | Gels |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2310-2861/10/3/180 |
| _version_ | 1797240874404413440 |
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| author | Marina González-Barriuso Mario Sánchez-Suárez Judith González-Lavín Ana Arenillas Natalia Rey-Raap |
| author_facet | Marina González-Barriuso Mario Sánchez-Suárez Judith González-Lavín Ana Arenillas Natalia Rey-Raap |
| author_sort | Marina González-Barriuso |
| collection | DOAJ |
| description | Carbonaceous materials used in most electrochemical applications require high specific surface area, adequate pore size distribution, and high electrical conductivity to ensure good interaction with the electrolyte and fast electron transport. The development of transition metal doped graphene aerogels is a possible solution, since their structure, morphology, and electrical properties can be controlled during the synthesis process. This work aims to synthesize Ni-doped graphene aerogels to study the role of different nickel salts in the sol-gel reaction and their final properties. The characterization data show that, regardless of the nature of the Ni salts, the surface area, volume of micropores, and enveloped density decrease, while the porosity and electrical conductivity increase. However, differences in morphology, mesopore size distribution, degree of order of the carbon structure, and electrical conductivity were observed depending on the type of Ni salt. It was found that nickel nitrate results in a material with a broader mesopore distribution, higher electrical conductivity, and hence, higher electrochemical surface area, demonstrating that graphene aerogels can be easily synthesized with tailored properties to fit the requirements of specific electrochemical applications. |
| first_indexed | 2024-04-24T18:14:22Z |
| format | Article |
| id | doaj.art-311b87fee1034a71a3f88e7d17562900 |
| institution | Directory Open Access Journal |
| issn | 2310-2861 |
| language | English |
| last_indexed | 2024-04-24T18:14:22Z |
| publishDate | 2024-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Gels |
| spelling | doaj.art-311b87fee1034a71a3f88e7d175629002024-03-27T13:42:38ZengMDPI AGGels2310-28612024-03-0110318010.3390/gels10030180Synthesis of Ni-Doped Graphene Aerogels for Electrochemical ApplicationsMarina González-Barriuso0Mario Sánchez-Suárez1Judith González-Lavín2Ana Arenillas3Natalia Rey-Raap4Institute of Carbon Science and Technology (INCAR-CSIC), Calle Francisco Pintado Fe, 26, 33011 Oviedo, SpainInstitute of Carbon Science and Technology (INCAR-CSIC), Calle Francisco Pintado Fe, 26, 33011 Oviedo, SpainInstitute of Carbon Science and Technology (INCAR-CSIC), Calle Francisco Pintado Fe, 26, 33011 Oviedo, SpainInstitute of Carbon Science and Technology (INCAR-CSIC), Calle Francisco Pintado Fe, 26, 33011 Oviedo, SpainInstitute of Carbon Science and Technology (INCAR-CSIC), Calle Francisco Pintado Fe, 26, 33011 Oviedo, SpainCarbonaceous materials used in most electrochemical applications require high specific surface area, adequate pore size distribution, and high electrical conductivity to ensure good interaction with the electrolyte and fast electron transport. The development of transition metal doped graphene aerogels is a possible solution, since their structure, morphology, and electrical properties can be controlled during the synthesis process. This work aims to synthesize Ni-doped graphene aerogels to study the role of different nickel salts in the sol-gel reaction and their final properties. The characterization data show that, regardless of the nature of the Ni salts, the surface area, volume of micropores, and enveloped density decrease, while the porosity and electrical conductivity increase. However, differences in morphology, mesopore size distribution, degree of order of the carbon structure, and electrical conductivity were observed depending on the type of Ni salt. It was found that nickel nitrate results in a material with a broader mesopore distribution, higher electrical conductivity, and hence, higher electrochemical surface area, demonstrating that graphene aerogels can be easily synthesized with tailored properties to fit the requirements of specific electrochemical applications.https://www.mdpi.com/2310-2861/10/3/180carbon aerogelsgrapheneelectrical conductivityporosityelectrochemistry |
| spellingShingle | Marina González-Barriuso Mario Sánchez-Suárez Judith González-Lavín Ana Arenillas Natalia Rey-Raap Synthesis of Ni-Doped Graphene Aerogels for Electrochemical Applications Gels carbon aerogels graphene electrical conductivity porosity electrochemistry |
| title | Synthesis of Ni-Doped Graphene Aerogels for Electrochemical Applications |
| title_full | Synthesis of Ni-Doped Graphene Aerogels for Electrochemical Applications |
| title_fullStr | Synthesis of Ni-Doped Graphene Aerogels for Electrochemical Applications |
| title_full_unstemmed | Synthesis of Ni-Doped Graphene Aerogels for Electrochemical Applications |
| title_short | Synthesis of Ni-Doped Graphene Aerogels for Electrochemical Applications |
| title_sort | synthesis of ni doped graphene aerogels for electrochemical applications |
| topic | carbon aerogels graphene electrical conductivity porosity electrochemistry |
| url | https://www.mdpi.com/2310-2861/10/3/180 |
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