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Electrochemistry of 2-dimethylaminoethanethiol SAM on gold electrode: Interaction with SWCNT-poly(m-aminobenzene sulphonic acid), electric field-induced protonation-deprotonation, and surface pKa

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dc.contributor.author Pillay, J
dc.contributor.author Agboola, BO
dc.contributor.author Ozoemena, KI
dc.date.accessioned 2009-09-11T14:47:39Z
dc.date.available 2009-09-11T14:47:39Z
dc.date.issued 2009-06
dc.identifier.citation Pillay, J, Agboola, BO and Ozoemena, KI. 2009. Electrochemistry of 2-dimethylaminoethanethiol SAM on gold electrode: Interaction with SWCNT-poly(m-aminobenzene sulphonic acid), electric field-induced protonation-deprotonation, and surface pKa. Electrochemistry Communications. Vol. 11(6), pp 1292 - 1296 en
dc.identifier.issn 1388-2481
dc.identifier.uri http://hdl.handle.net/10204/3584
dc.description Copyright: 2009 Elsevier en
dc.description.abstract Electrochemical behaviour of self-assembled monolayer of 2-dimethylaminoethanethiol (DMAET) on gold electrode, with and without integration with SWCNT-poly(m-aminobenzene sulphonic acid) (SWCNT-PABS) has been probed. It is proved that the so-called electric field induced protonation-deprotonation process, hitherto observed for the -COOH terminated SAMs, is also observed for the -N(H)+(CH3)2 terminated. The surface pKa of DMAET was estimated as 7.6, smaller than its solution pKa of 10.8. It is also shown that SWCNT-PABS is irreversibly attached to the DMAET SAM. en
dc.language.iso en en
dc.publisher Elsevier en
dc.subject Self-assembled monolayer en
dc.subject Protonation-deprotonation en
dc.subject Surface pKa en
dc.subject Cyclic voltammetry en
dc.subject Electrochemical impedance spectroscopy en
dc.subject Electrochemistry Communications en
dc.subject 2-dimethylaminoethanethiol en
dc.subject Gold electrode en
dc.subject SWCNT-poly(m-aminobenzene sulphonic acid) en
dc.subject Electric field-induced protonation-deprotonation en
dc.title Electrochemistry of 2-dimethylaminoethanethiol SAM on gold electrode: Interaction with SWCNT-poly(m-aminobenzene sulphonic acid), electric field-induced protonation-deprotonation, and surface pKa en
dc.type Article en
dc.identifier.apacitation Pillay, J., Agboola, B., & Ozoemena, K. (2009). Electrochemistry of 2-dimethylaminoethanethiol SAM on gold electrode: Interaction with SWCNT-poly(m-aminobenzene sulphonic acid), electric field-induced protonation-deprotonation, and surface pKa. http://hdl.handle.net/10204/3584 en_ZA
dc.identifier.chicagocitation Pillay, J, BO Agboola, and KI Ozoemena "Electrochemistry of 2-dimethylaminoethanethiol SAM on gold electrode: Interaction with SWCNT-poly(m-aminobenzene sulphonic acid), electric field-induced protonation-deprotonation, and surface pKa." (2009) http://hdl.handle.net/10204/3584 en_ZA
dc.identifier.vancouvercitation Pillay J, Agboola B, Ozoemena K. Electrochemistry of 2-dimethylaminoethanethiol SAM on gold electrode: Interaction with SWCNT-poly(m-aminobenzene sulphonic acid), electric field-induced protonation-deprotonation, and surface pKa. 2009; http://hdl.handle.net/10204/3584. en_ZA
dc.identifier.ris TY - Article AU - Pillay, J AU - Agboola, BO AU - Ozoemena, KI AB - Electrochemical behaviour of self-assembled monolayer of 2-dimethylaminoethanethiol (DMAET) on gold electrode, with and without integration with SWCNT-poly(m-aminobenzene sulphonic acid) (SWCNT-PABS) has been probed. It is proved that the so-called electric field induced protonation-deprotonation process, hitherto observed for the -COOH terminated SAMs, is also observed for the -N(H)+(CH3)2 terminated. The surface pKa of DMAET was estimated as 7.6, smaller than its solution pKa of 10.8. It is also shown that SWCNT-PABS is irreversibly attached to the DMAET SAM. DA - 2009-06 DB - ResearchSpace DP - CSIR KW - Self-assembled monolayer KW - Protonation-deprotonation KW - Surface pKa KW - Cyclic voltammetry KW - Electrochemical impedance spectroscopy KW - Electrochemistry Communications KW - 2-dimethylaminoethanethiol KW - Gold electrode KW - SWCNT-poly(m-aminobenzene sulphonic acid) KW - Electric field-induced protonation-deprotonation LK - https://researchspace.csir.co.za PY - 2009 SM - 1388-2481 T1 - Electrochemistry of 2-dimethylaminoethanethiol SAM on gold electrode: Interaction with SWCNT-poly(m-aminobenzene sulphonic acid), electric field-induced protonation-deprotonation, and surface pKa TI - Electrochemistry of 2-dimethylaminoethanethiol SAM on gold electrode: Interaction with SWCNT-poly(m-aminobenzene sulphonic acid), electric field-induced protonation-deprotonation, and surface pKa UR - http://hdl.handle.net/10204/3584 ER - en_ZA


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