Single-Electrode Electrochemistry: Chemically Engineering Surface Adhesion and Hardness to Maximize Redox Work Extracted from Tribocharged Silicon
© 2019 American Chemical Society. Recent research has demonstrated that heterogeneous charge-transfer reactions are not restricted to conductors and that electrochemical reactions can occur on the surface of statically charged insulators. However, the exact mechanism by which insulators gain and...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Journal Article |
| Language: | English |
| Published: |
AMER CHEMICAL SOC
2019
|
| Subjects: | |
| Online Access: | http://purl.org/au-research/grants/arc/DE160100732 http://hdl.handle.net/20.500.11937/79495 |
| _version_ | 1848764060356575232 |
|---|---|
| author | Zhang, Jinyang Ferrie, Stuart Zhang, Song Vogel, Yan Peiris, Chandramalika Darwish, Nadim Ciampi, Simone |
| author_facet | Zhang, Jinyang Ferrie, Stuart Zhang, Song Vogel, Yan Peiris, Chandramalika Darwish, Nadim Ciampi, Simone |
| author_sort | Zhang, Jinyang |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2019 American Chemical Society.
Recent research has demonstrated that heterogeneous charge-transfer reactions are not restricted to conductors and that electrochemical reactions can occur on the surface of statically charged insulators. However, the exact mechanism by which insulators gain and lose electrical charges remains controversial. Herein we have studied quantitatively the reduction of silver ions on intrinsic amorphous silicon surfaces that are statically charged by contact against plastic polymers. We have quantified the magnitude of the redox work done by the tribocharged silicon surface as a function of its adhesion and hardness, with these two variables being tuned using covalent Si - C monolayer chemistries. We observed that metallic particles grow preferentially over surfaces that are relatively soft (low DMT modulus) and highly adhesive, hence indirectly proving that the triboelectrification of an insulator-insulator dynamic contact is caused by the exchange of ionic fragments, rather than by the movement of free electrons. This work clarifies the origin of triboelectricity, devises a surface-chemistry method to maximize tribocharging with immediate scope in single-electrode electrochemistry, and describes a concept potentially suitable for the mask-free and bias-free patterning of metal nanoparticles on photoconductors. |
| first_indexed | 2025-11-14T11:13:21Z |
| format | Journal Article |
| id | curtin-20.500.11937-79495 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:13:21Z |
| publishDate | 2019 |
| publisher | AMER CHEMICAL SOC |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-794952020-10-30T04:01:37Z Single-Electrode Electrochemistry: Chemically Engineering Surface Adhesion and Hardness to Maximize Redox Work Extracted from Tribocharged Silicon Zhang, Jinyang Ferrie, Stuart Zhang, Song Vogel, Yan Peiris, Chandramalika Darwish, Nadim Ciampi, Simone Science & Technology Technology Nanoscience & Nanotechnology Materials Science, Multidisciplinary Science & Technology - Other Topics Materials Science single electrode electrochemistry tribocharging contact electrification surface adhesion and hardness amorphous silicon surface chemistry CONTACT CHARGE FRICTION MONOLAYERS CHEMISTRY REVERSAL © 2019 American Chemical Society. Recent research has demonstrated that heterogeneous charge-transfer reactions are not restricted to conductors and that electrochemical reactions can occur on the surface of statically charged insulators. However, the exact mechanism by which insulators gain and lose electrical charges remains controversial. Herein we have studied quantitatively the reduction of silver ions on intrinsic amorphous silicon surfaces that are statically charged by contact against plastic polymers. We have quantified the magnitude of the redox work done by the tribocharged silicon surface as a function of its adhesion and hardness, with these two variables being tuned using covalent Si - C monolayer chemistries. We observed that metallic particles grow preferentially over surfaces that are relatively soft (low DMT modulus) and highly adhesive, hence indirectly proving that the triboelectrification of an insulator-insulator dynamic contact is caused by the exchange of ionic fragments, rather than by the movement of free electrons. This work clarifies the origin of triboelectricity, devises a surface-chemistry method to maximize tribocharging with immediate scope in single-electrode electrochemistry, and describes a concept potentially suitable for the mask-free and bias-free patterning of metal nanoparticles on photoconductors. 2019 Journal Article http://hdl.handle.net/20.500.11937/79495 10.1021/acsanm.9b01726 English http://purl.org/au-research/grants/arc/DE160100732 http://purl.org/au-research/grants/arc/DE160101101 http://purl.org/au-research/grants/arc/DP190100735 AMER CHEMICAL SOC fulltext |
| spellingShingle | Science & Technology Technology Nanoscience & Nanotechnology Materials Science, Multidisciplinary Science & Technology - Other Topics Materials Science single electrode electrochemistry tribocharging contact electrification surface adhesion and hardness amorphous silicon surface chemistry CONTACT CHARGE FRICTION MONOLAYERS CHEMISTRY REVERSAL Zhang, Jinyang Ferrie, Stuart Zhang, Song Vogel, Yan Peiris, Chandramalika Darwish, Nadim Ciampi, Simone Single-Electrode Electrochemistry: Chemically Engineering Surface Adhesion and Hardness to Maximize Redox Work Extracted from Tribocharged Silicon |
| title | Single-Electrode Electrochemistry: Chemically Engineering Surface Adhesion and Hardness to Maximize Redox Work Extracted from Tribocharged Silicon |
| title_full | Single-Electrode Electrochemistry: Chemically Engineering Surface Adhesion and Hardness to Maximize Redox Work Extracted from Tribocharged Silicon |
| title_fullStr | Single-Electrode Electrochemistry: Chemically Engineering Surface Adhesion and Hardness to Maximize Redox Work Extracted from Tribocharged Silicon |
| title_full_unstemmed | Single-Electrode Electrochemistry: Chemically Engineering Surface Adhesion and Hardness to Maximize Redox Work Extracted from Tribocharged Silicon |
| title_short | Single-Electrode Electrochemistry: Chemically Engineering Surface Adhesion and Hardness to Maximize Redox Work Extracted from Tribocharged Silicon |
| title_sort | single-electrode electrochemistry: chemically engineering surface adhesion and hardness to maximize redox work extracted from tribocharged silicon |
| topic | Science & Technology Technology Nanoscience & Nanotechnology Materials Science, Multidisciplinary Science & Technology - Other Topics Materials Science single electrode electrochemistry tribocharging contact electrification surface adhesion and hardness amorphous silicon surface chemistry CONTACT CHARGE FRICTION MONOLAYERS CHEMISTRY REVERSAL |
| url | http://purl.org/au-research/grants/arc/DE160100732 http://purl.org/au-research/grants/arc/DE160100732 http://purl.org/au-research/grants/arc/DE160100732 http://hdl.handle.net/20.500.11937/79495 |