Polyaniline and nano-carbon composite supercapacitors

Lead Research Organisation: University of Surrey
Department Name: ATI Electronics

Abstract

This project aims to explore the enhanced energy storage capability of nano composite materials in supercapacitor applications. Pseudocapacitive polymer composites have been used in the past but they suffer from mechanical failure due to volume expansion and shrinkage during charge cycles. We propose a polymer/nano-carbon composite that will allow the nano-carbon scaffold to provide enhanced mechanical integrity and electron transfer kinetics. Polyaniline (PANI), due to its low cost, scalability of synthesis, unique chemistry, and high theoretical capacitance is the chosen conducting polymer for this project. Combining PANI with various carbons, such as carbon felt, graphene, carbon nanotubes, and carbon fibres has been shown to increase the materials electrochemical stability. This research aims build on this composite architecture to construct novel electrode material designs based on carbon/conducting polymer composites, via chemical and electrochemical fabrication techniques.

Publications

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Studentship Projects

Project Reference Relationship Related To Start End Student Name
EP/N509772/1 01/10/2016 30/09/2021
1949806 Studentship EP/N509772/1 03/07/2017 31/03/2021 Ashveer Stott
 
Description It has been discovered that the high power performance of PANI composites can be greatly improved by using our unique fabrication method. This is the result of improved research methods, which may lead to new knowledge generated.

Significant negative results and/or research paths closed off, with respect to using particular materials/substrates.

Throughout this work important new collaborations have been form in association with Surrey University. Including, University of Sao Paulo, Yamagata University, and Novosibirsk State University.

Attending the electrochemical workshop has provided training and skills in areas previously unknown to our department. This knowledge and skills have propagated through the facility resulting in new techniques becoming available.
Exploitation Route Other can use these techniques to build on these performance improvements, and utilise these types of electrodes in more advanced devices. This can not only enhance academic research but also industrial development of supercapacitors.
Sectors Electronics,Energy,Transport

 
Description Collaboration with Novosibirsk state University 
Organisation University of Novosibirsk
Country Russian Federation 
Sector Academic/University 
PI Contribution Contributions include, establishing collaboration, expertise, equipment and facilities.
Collaborator Contribution Contributions include, expertise and intellectual input.
Impact Collaboration has so far resulted in a Royal society travel program, as well as a poster presentation at ISEECap conference. This is a multi-disciplinary as it requires intellectual and experimental input from chemistry, electrochemistry, and microscopy experts.
Start Year 2019
 
Description Research collaboration with University of Sao Paulo 
Organisation University of Sao Paulo
Country Brazil 
Sector Academic/University 
PI Contribution Contributions include equipment and facilities, measurement and composite fabrication.
Collaborator Contribution Contributions include the exchange of knowledge and material fabrication.
Impact Poster presentation at ISEECap, Nantes France. This collaboration is multi-disciplinary as it requires skills and knowledge in carbon nanotube growth and characterisation, electrochemistry, and microscopy.
Start Year 2018
 
Description Research exchange with Yamagata University 
Organisation University of Yamagata
Country Japan 
Sector Academic/University 
PI Contribution Contributions include the exchange of electrochemical knowledge and processes.
Collaborator Contribution Contributions include the exchange of electronic knowledge, materials, use of equipment/lab facilities.
Impact This exchange has resulted in a strong collaboration based in fabrication of composite supercapacitor materials.
Start Year 2019
 
Description General electrochemistry workshop 
Form Of Engagement Activity Participation in an activity, workshop or similar
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Postgraduate students
Results and Impact Over a five day period approximately 30 people attended the electrochemistry winter school, where professional electrochemists from academia and industry delivered lectures and practicals to disseminate fundamental electrochemical knowledge. In addition, there was significant discussion amongst all parties regarding topics relevant to electrochemical research. This facilitated the exchange of knowledge between all parties. The event helped inform the research direction of the grant award.
Year(s) Of Engagement Activity 2018
URL https://www.bath.ac.uk/campaigns/study-at-our-electrochemistry-summer-and-winter-schools/
 
Description ISEECap conference 
Form Of Engagement Activity A talk or presentation
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Professional Practitioners
Results and Impact Presented two poster presentations to a conference of approximately 100 electrochemical practitioners specifically focused on supercapacitor materials.
Year(s) Of Engagement Activity 2019
 
Description Seminar at Yamagata University 
Form Of Engagement Activity A talk or presentation
Part Of Official Scheme? No
Geographic Reach Local
Primary Audience Undergraduate students
Results and Impact Delivered a short seminar to all members of a research department, including undergraduates, postgraduates, and professors. This initiated a lasting collaborating in electrochemical activities.
Year(s) Of Engagement Activity 2019
 
Description University of Surrey doctoral college conference 
Form Of Engagement Activity A talk or presentation
Part Of Official Scheme? No
Geographic Reach Local
Primary Audience Postgraduate students
Results and Impact Delivered an oral presentation to several doctoral students, from various departments, at the University of Surrey.
Year(s) Of Engagement Activity 2018