THE ELECTROCHEMISTRY OF [PTH(PET3)3]+ - INVERTED AND AMPLIFIED CYCLIC VOLTAMMETRIC WAVES AND CATALYTIC HYDROGEN-PRODUCTION AT A MERCURY-ELECTRODE
Inverted and amplified waves in cyclic voltammograms of [PtH(PEt3)3]+ at a sitting mercury drop electrode are interpreted in terms of catalytic cycles for hydrogen production from water involving adsorbed species. The adsorption step on the cathodic sweep involves a two-electron reduction to the cat...
| Main Authors: | , |
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| Format: | Journal article |
| Language: | English |
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1986
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| _version_ | 1797088461057949696 |
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| author | Compton, R Colehamilton, D |
| author_facet | Compton, R Colehamilton, D |
| author_sort | Compton, R |
| collection | OXFORD |
| description | Inverted and amplified waves in cyclic voltammograms of [PtH(PEt3)3]+ at a sitting mercury drop electrode are interpreted in terms of catalytic cycles for hydrogen production from water involving adsorbed species. The adsorption step on the cathodic sweep involves a two-electron reduction to the catalytically inactive species [PtH(PEt3)3]- (ads.). On the reverse (anodic) sweep, a reductive catalytic cycle is initiated by oxidation to [PtH(PEt3)3]. (ads.) and stops when the potential is insufficiently negative to reduce [Pt(PEt3)3].+ (ads.) {or [PtH2(PEt3)3].+ (ads.)}. In second and subsequent forward scans the catalytic cycle restarts when the potential is sufficiently reducing to reduce [Pt(PEt3)3].+ (ads.) or [PtH2(PEt3)3].+ (ads.) and terminates when [PtH(PEt3)3]. (ads.) is reduced to [PtH (PEt3)3]- (ads.). Variations in peak shape and position with [PtH(PEt3)3]+ (aq.) concentration are interpreted in terms of partial or full desorption of [Pt(PEt3)3] (ads.) or [PtH(PEt3)3]. (ads.) during the catalytic cyclic under certain conditions. Catalysis of hydrogen production at a mercury drop electrode with catalyst turnover numbers up to 2 × 105 h-1 for > 16 h is also described. |
| first_indexed | 2024-03-07T02:50:25Z |
| format | Journal article |
| id | oxford-uuid:ad7fbc7e-2dc9-4271-aa77-61ce1067735e |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T02:50:25Z |
| publishDate | 1986 |
| record_format | dspace |
| spelling | oxford-uuid:ad7fbc7e-2dc9-4271-aa77-61ce1067735e2022-03-27T03:35:55ZTHE ELECTROCHEMISTRY OF [PTH(PET3)3]+ - INVERTED AND AMPLIFIED CYCLIC VOLTAMMETRIC WAVES AND CATALYTIC HYDROGEN-PRODUCTION AT A MERCURY-ELECTRODEJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:ad7fbc7e-2dc9-4271-aa77-61ce1067735eEnglishSymplectic Elements at Oxford1986Compton, RColehamilton, DInverted and amplified waves in cyclic voltammograms of [PtH(PEt3)3]+ at a sitting mercury drop electrode are interpreted in terms of catalytic cycles for hydrogen production from water involving adsorbed species. The adsorption step on the cathodic sweep involves a two-electron reduction to the catalytically inactive species [PtH(PEt3)3]- (ads.). On the reverse (anodic) sweep, a reductive catalytic cycle is initiated by oxidation to [PtH(PEt3)3]. (ads.) and stops when the potential is insufficiently negative to reduce [Pt(PEt3)3].+ (ads.) {or [PtH2(PEt3)3].+ (ads.)}. In second and subsequent forward scans the catalytic cycle restarts when the potential is sufficiently reducing to reduce [Pt(PEt3)3].+ (ads.) or [PtH2(PEt3)3].+ (ads.) and terminates when [PtH(PEt3)3]. (ads.) is reduced to [PtH (PEt3)3]- (ads.). Variations in peak shape and position with [PtH(PEt3)3]+ (aq.) concentration are interpreted in terms of partial or full desorption of [Pt(PEt3)3] (ads.) or [PtH(PEt3)3]. (ads.) during the catalytic cyclic under certain conditions. Catalysis of hydrogen production at a mercury drop electrode with catalyst turnover numbers up to 2 × 105 h-1 for > 16 h is also described. |
| spellingShingle | Compton, R Colehamilton, D THE ELECTROCHEMISTRY OF [PTH(PET3)3]+ - INVERTED AND AMPLIFIED CYCLIC VOLTAMMETRIC WAVES AND CATALYTIC HYDROGEN-PRODUCTION AT A MERCURY-ELECTRODE |
| title | THE ELECTROCHEMISTRY OF [PTH(PET3)3]+ - INVERTED AND AMPLIFIED CYCLIC VOLTAMMETRIC WAVES AND CATALYTIC HYDROGEN-PRODUCTION AT A MERCURY-ELECTRODE |
| title_full | THE ELECTROCHEMISTRY OF [PTH(PET3)3]+ - INVERTED AND AMPLIFIED CYCLIC VOLTAMMETRIC WAVES AND CATALYTIC HYDROGEN-PRODUCTION AT A MERCURY-ELECTRODE |
| title_fullStr | THE ELECTROCHEMISTRY OF [PTH(PET3)3]+ - INVERTED AND AMPLIFIED CYCLIC VOLTAMMETRIC WAVES AND CATALYTIC HYDROGEN-PRODUCTION AT A MERCURY-ELECTRODE |
| title_full_unstemmed | THE ELECTROCHEMISTRY OF [PTH(PET3)3]+ - INVERTED AND AMPLIFIED CYCLIC VOLTAMMETRIC WAVES AND CATALYTIC HYDROGEN-PRODUCTION AT A MERCURY-ELECTRODE |
| title_short | THE ELECTROCHEMISTRY OF [PTH(PET3)3]+ - INVERTED AND AMPLIFIED CYCLIC VOLTAMMETRIC WAVES AND CATALYTIC HYDROGEN-PRODUCTION AT A MERCURY-ELECTRODE |
| title_sort | electrochemistry of pth pet3 3 inverted and amplified cyclic voltammetric waves and catalytic hydrogen production at a mercury electrode |
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