Graphene Electrochemistry: Understanding fundamental electron transfer at graphite electrodes
Lead Research Organisation:
University of Sussex
Department Name: Sch of Life Sciences
Abstract
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People |
ORCID iD |
| Malcolm Heggie (Principal Investigator) |
Publications
Davidson Calvin Ray
(2012)
Towards the matter compiler : looking ahead to computer-controlled molecular assembly
| Description | The aim of this project was to understand electron transfer rates at graphene electrodes. Progress in this direction has been made but the correlation with experiment is not yet clear. An electron residing in the electrode can jump to an ion in solution, reducing its oxidation state. How easy this process is depends on the proximity of the ion and the electrode and the numbers of electrons available at the correct energy and location within the electrode (this number is called the surface projected density of states at the Fermi level). We have calculated this for 1-10 graphene layers and find it maximum for one layer and minimum for two. We have also examined how defects in the layers affect the surface projected densities of states, which very closely related to what is seen of these defects by a scanning transmission microscope. Finally, collaborating with colleagues in France we have examined edges of graphene sheets and found they can curl up on themselves removing all their broken bonds. This curling and folding process has been examined in the boron nitride analogue of graphite, and shown to give interesting optical emission effects. |
| Exploitation Route | graphene and nanotechnology researchers should be able to use the STM images of defective graphene and the trends in projected densities of states. |
| Sectors | Chemicals,Energy |
| Description | The work on graphene edges has 29 citations |
| First Year Of Impact | 2014 |
| Sector | Other |
| Impact Types | Cultural |
| Description | NanoTP conference oral presentation |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | Yes |
| Geographic Reach | International |
| Primary Audience | Other academic audiences (collaborators, peers etc.) |
| Results and Impact | some interest in the techniques proposed. encouraged collaboration with a scientist in Portugal. |
| Year(s) Of Engagement Activity | 2014 |
| URL | http://www.nanotp.org/all/nantes-2014.html |
| Description | NanoteC12 Nanotechnology in Carbon and Related Materials |
| Form Of Engagement Activity | Scientific meeting (conference/symposium etc.) |
| Part Of Official Scheme? | Yes |
| Type Of Presentation | workshop facilitator |
| Geographic Reach | International |
| Primary Audience | Other academic audiences (collaborators, peers etc.) |
| Results and Impact | Post lecture discussion features strongly in these conferences and usually international collaborations arise. scientific collaboration with Dr Alberto Zobelly, University of Paris. |
| Year(s) Of Engagement Activity | 2012 |
| URL | http://www.britishcarbon.org |
| Description | NanoteC13 Nanotechnology in carbon and related materials |
| Form Of Engagement Activity | Scientific meeting (conference/symposium etc.) |
| Part Of Official Scheme? | Yes |
| Type Of Presentation | workshop facilitator |
| Geographic Reach | National |
| Primary Audience | Other academic audiences (collaborators, peers etc.) |
| Results and Impact | This was a national scientific conference with international participation. It included a theory:experiment workshop on graphene in collaboration with EPSRC Collaborative Computational Project 9 (CCP9). The theory:experiment workshop led to a number of specific graphene collaborations which were later discussed and taken forward at the CCP9 Spring meeting. |
| Year(s) Of Engagement Activity | 2013 |
| URL | http://www.britishcarbon.org |