Electrochemical collision of single graphene oxide sheets at ultramicroelectrodes and its usage as substrate for Pt nanoparticle deposition
Abstract Revealing the physiochemical properties of individual graphene oxide (GO) sheets is highly desired for both fundamental research interests and practical applications, especially for their surface functionalization and modification toward hybrid composites with high performance. Herein, we r...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley-VCH
2022-06-01
|
| Series: | Electrochemical Science Advances |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/elsa.202100069 |
| _version_ | 1811258168962973696 |
|---|---|
| author | Xiaoyue Shen Dengchao Wang |
| author_facet | Xiaoyue Shen Dengchao Wang |
| author_sort | Xiaoyue Shen |
| collection | DOAJ |
| description | Abstract Revealing the physiochemical properties of individual graphene oxide (GO) sheets is highly desired for both fundamental research interests and practical applications, especially for their surface functionalization and modification toward hybrid composites with high performance. Herein, we report three different strategies including surface blockage, capacitive charging, and electrochemical reduction to detect and study single GO sheets using single‐entity electrochemical methods. The size, surface charge, dielectric, and electrochemical features of single GO sheets can then be revealed and quantified from the transient current signals. Moreover, the adsorbed GO can confine the electrode surface for metal deposition and produce single Pt nanoparticles, as indicated by the discrete reductive spikes shown in the deposition processes. |
| first_indexed | 2024-04-12T18:09:04Z |
| format | Article |
| id | doaj.art-475398d5d64944819a12459c44e92e2f |
| institution | Directory Open Access Journal |
| issn | 2698-5977 |
| language | English |
| last_indexed | 2024-04-12T18:09:04Z |
| publishDate | 2022-06-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Electrochemical Science Advances |
| spelling | doaj.art-475398d5d64944819a12459c44e92e2f2022-12-22T03:21:53ZengWiley-VCHElectrochemical Science Advances2698-59772022-06-0123n/an/a10.1002/elsa.202100069Electrochemical collision of single graphene oxide sheets at ultramicroelectrodes and its usage as substrate for Pt nanoparticle depositionXiaoyue Shen0Dengchao Wang1School of Chemical Sciences University of Chinese Academy of Sciences Beijing 10049 P. R. ChinaSchool of Chemical Sciences University of Chinese Academy of Sciences Beijing 10049 P. R. ChinaAbstract Revealing the physiochemical properties of individual graphene oxide (GO) sheets is highly desired for both fundamental research interests and practical applications, especially for their surface functionalization and modification toward hybrid composites with high performance. Herein, we report three different strategies including surface blockage, capacitive charging, and electrochemical reduction to detect and study single GO sheets using single‐entity electrochemical methods. The size, surface charge, dielectric, and electrochemical features of single GO sheets can then be revealed and quantified from the transient current signals. Moreover, the adsorbed GO can confine the electrode surface for metal deposition and produce single Pt nanoparticles, as indicated by the discrete reductive spikes shown in the deposition processes.https://doi.org/10.1002/elsa.202100069graphene oxidesingle entity electrochemistrysurface chargessingle nanoparticle depositionnumerical simulation |
| spellingShingle | Xiaoyue Shen Dengchao Wang Electrochemical collision of single graphene oxide sheets at ultramicroelectrodes and its usage as substrate for Pt nanoparticle deposition Electrochemical Science Advances graphene oxide single entity electrochemistry surface charges single nanoparticle deposition numerical simulation |
| title | Electrochemical collision of single graphene oxide sheets at ultramicroelectrodes and its usage as substrate for Pt nanoparticle deposition |
| title_full | Electrochemical collision of single graphene oxide sheets at ultramicroelectrodes and its usage as substrate for Pt nanoparticle deposition |
| title_fullStr | Electrochemical collision of single graphene oxide sheets at ultramicroelectrodes and its usage as substrate for Pt nanoparticle deposition |
| title_full_unstemmed | Electrochemical collision of single graphene oxide sheets at ultramicroelectrodes and its usage as substrate for Pt nanoparticle deposition |
| title_short | Electrochemical collision of single graphene oxide sheets at ultramicroelectrodes and its usage as substrate for Pt nanoparticle deposition |
| title_sort | electrochemical collision of single graphene oxide sheets at ultramicroelectrodes and its usage as substrate for pt nanoparticle deposition |
| topic | graphene oxide single entity electrochemistry surface charges single nanoparticle deposition numerical simulation |
| url | https://doi.org/10.1002/elsa.202100069 |
| work_keys_str_mv | AT xiaoyueshen electrochemicalcollisionofsinglegrapheneoxidesheetsatultramicroelectrodesanditsusageassubstrateforptnanoparticledeposition AT dengchaowang electrochemicalcollisionofsinglegrapheneoxidesheetsatultramicroelectrodesanditsusageassubstrateforptnanoparticledeposition |