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Supercapacitors based on carbon aerogels: comparison between bacterial cellulose based and resorcinol based aerogels

Grant number: 16/22942-6
Support type:Scholarships abroad - Research Internship - Scientific Initiation
Effective date (Start): January 15, 2017
Effective date (End): March 14, 2017
Field of knowledge:Physical Sciences and Mathematics - Chemistry - Inorganic Chemistry
Principal researcher:Sidney José Lima Ribeiro
Grantee:Otavio Henrique Candido Clemente
Supervisor abroad: Marcus Andre Worsley
Home Institution: Instituto de Química (IQ). Universidade Estadual Paulista (UNESP). Campus de Araraquara. Araraquara , SP, Brazil
Research place: Lawrence Livermore National Laboratory (LLNL), United States  
Associated to the scholarship:16/07671-6 - Organic aerogels based on bacterial cellulose and silk fibroin for applications in engineering and biomedicine, BP.IC


This proposal is included in the original activities program approved by FAPESP. So far, bacterial cellulose (BC) and BC-silk fibroin (BCF) aerogels have been prepared by supercritical CO2 drying. Afterwards pyrolysis of aerogels have led to carbon aerogels. The original BC morphology is kept in the final carbon aerogel. In the scope of the initial project a short period in the lab of Dr. Marcus Worsley (Lawrence Livermore National Laboratory - LLNL- USA) is proposed. In LLNL carbon aerogels are being obtained by 3D printing of resorcinol-formaldehyde (RF) based resins followed by pyrolysis. Graphene oxide (GO) and graphene nanoplatelets GNP) are being used together with the RF. RF-GO-GNP based CA will be prepared with dimensions close to those of the carbon aerogels obtained from BC. Supercapacitor properties will be evaluated and compared. Dr. Worsley is a specialist in the field as shown by his recent contributions [1-3]. The short period will contribute in an interesting way to the formation of the student, putting in evidence the possibilities of optimizing supercapacitors devices by controlling the nature and morphology of the organic precursor to be pyrolyzed. (AU)

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