How many molecules are required to obtain a steady faradaic current from mediated electron transfer at a single nanoparticle on a supporting surface?
We investigate the chronoamperometric noise characteristics of electron-transfer reactions occurring on single nanoparticles (NPs) and assemblies of well-separated NPs on a supporting surface. To this end, we combine a formerly described expression for the steady-state current of a single particle w...
| Main Authors: | , , , |
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| 格式: | Journal article |
| 语言: | English |
| 出版: |
2014
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| _version_ | 1826297994565124096 |
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| author | Kätelhön, E Krause, K Wolfrum, B Compton, R |
| author_facet | Kätelhön, E Krause, K Wolfrum, B Compton, R |
| author_sort | Kätelhön, E |
| collection | OXFORD |
| description | We investigate the chronoamperometric noise characteristics of electron-transfer reactions occurring on single nanoparticles (NPs) and assemblies of well-separated NPs on a supporting surface. To this end, we combine a formerly described expression for the steady-state current of a single particle with the shot-noise model and derive an expression for the signal-to-noise ratio as a function of bulk concentration and particle radius. Our findings are supported by random-walk simulations, which closely match the analytical results. |
| first_indexed | 2024-03-07T04:40:03Z |
| format | Journal article |
| id | oxford-uuid:d14d3f4d-8420-43aa-a4ac-c0ed8ed7002e |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T04:40:03Z |
| publishDate | 2014 |
| record_format | dspace |
| spelling | oxford-uuid:d14d3f4d-8420-43aa-a4ac-c0ed8ed7002e2022-03-27T07:56:13ZHow many molecules are required to obtain a steady faradaic current from mediated electron transfer at a single nanoparticle on a supporting surface?Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:d14d3f4d-8420-43aa-a4ac-c0ed8ed7002eEnglishSymplectic Elements at Oxford2014Kätelhön, EKrause, KWolfrum, BCompton, RWe investigate the chronoamperometric noise characteristics of electron-transfer reactions occurring on single nanoparticles (NPs) and assemblies of well-separated NPs on a supporting surface. To this end, we combine a formerly described expression for the steady-state current of a single particle with the shot-noise model and derive an expression for the signal-to-noise ratio as a function of bulk concentration and particle radius. Our findings are supported by random-walk simulations, which closely match the analytical results. |
| spellingShingle | Kätelhön, E Krause, K Wolfrum, B Compton, R How many molecules are required to obtain a steady faradaic current from mediated electron transfer at a single nanoparticle on a supporting surface? |
| title | How many molecules are required to obtain a steady faradaic current from mediated electron transfer at a single nanoparticle on a supporting surface? |
| title_full | How many molecules are required to obtain a steady faradaic current from mediated electron transfer at a single nanoparticle on a supporting surface? |
| title_fullStr | How many molecules are required to obtain a steady faradaic current from mediated electron transfer at a single nanoparticle on a supporting surface? |
| title_full_unstemmed | How many molecules are required to obtain a steady faradaic current from mediated electron transfer at a single nanoparticle on a supporting surface? |
| title_short | How many molecules are required to obtain a steady faradaic current from mediated electron transfer at a single nanoparticle on a supporting surface? |
| title_sort | how many molecules are required to obtain a steady faradaic current from mediated electron transfer at a single nanoparticle on a supporting surface |
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