2017 |
Santander-Nelli, M; Silva, C P; Espinoza-Vergara, J; Silva, J F; Olguin, C F; Cortes-Arriagada, D; Zagal, J H; Mendizabal, F; Diez-Perez, I; Pavez, J Tailoring Electroactive Surfaces by Non-Template Molecular Assembly. Towards Electrooxidation of L-Cysteine Artículo de revista Electrochimica Acta, 254 , pp. 201-213, 2017, ISSN: 0013-4686. Resumen | Enlaces | BibTeX | Etiquetas: arrays, assembly, bottom-up carbon chemistry, construction, dft, electrocatalytic electrode, graphite hardness, intermolecular iron metal metallophthalocyanines, model modified molecular nanoelectrode nanotube, nanotubes, phthalocyanines phthalocyanines, sams, set single substituted tetra-aminophthalocyanine, walled @article{RN356, title = {Tailoring Electroactive Surfaces by Non-Template Molecular Assembly. Towards Electrooxidation of L-Cysteine}, author = { M. Santander-Nelli and C.P. Silva and J. Espinoza-Vergara and J.F. Silva and C.F. Olguin and D. Cortes-Arriagada and J.H. Zagal and F. Mendizabal and I. Diez-Perez and J. Pavez}, url = {/brokenurl#<Go to ISI>://WOS:000413239600022}, doi = {10.1016/j.electacta.2017.09.082}, issn = {0013-4686}, year = {2017}, date = {2017-01-01}, journal = {Electrochimica Acta}, volume = {254}, pages = {201-213}, publisher = {2017 Elsevier Ltd.}, abstract = {We have prepared a nanoelectrode ensemble containing vertically aligned single walled carbon nanotubes (SWCNTs) using a non-template molecular self-assembling strategy. We used a bottom-up construction approach to assemble amino functionalized SWCNTs (af-SWCNTs) in a well-defined architecture. These af-SWCNTs were linked and vertically aligned to pre-formed self-assembled monolayers of 4-MBA. A Cobalt(II) tetracarboxyphthalocyanine (Co(COOH)(4)Pc) complex was covalently bonded to external portion of af-SWCNTs to complete the final nanoelectrode ensemble. X-ray photoelectron spectroscopy (XPS) and Atomic Force Microcopy (AFM) confirmed the effectiveness of the assembling steps on the gold surface starting from the Au/MBA SAMs. The system Au/4-MBA/af-SWCNTs shows an interface with large ordered array, which exhibits a high activity for the electrooxidation of L-cysteine (L-cys). Theoretical calculations suggest that the incorporation of the af-SWCNTs increased the activity of the assembly to electronic transfer and it was observed that the electrooxidation reaction is energetically favorable.}, keywords = {arrays, assembly, bottom-up carbon chemistry, construction, dft, electrocatalytic electrode, graphite hardness, intermolecular iron metal metallophthalocyanines, model modified molecular nanoelectrode nanotube, nanotubes, phthalocyanines phthalocyanines, sams, set single substituted tetra-aminophthalocyanine, walled}, pubstate = {published}, tppubtype = {article} } We have prepared a nanoelectrode ensemble containing vertically aligned single walled carbon nanotubes (SWCNTs) using a non-template molecular self-assembling strategy. We used a bottom-up construction approach to assemble amino functionalized SWCNTs (af-SWCNTs) in a well-defined architecture. These af-SWCNTs were linked and vertically aligned to pre-formed self-assembled monolayers of 4-MBA. A Cobalt(II) tetracarboxyphthalocyanine (Co(COOH)(4)Pc) complex was covalently bonded to external portion of af-SWCNTs to complete the final nanoelectrode ensemble. X-ray photoelectron spectroscopy (XPS) and Atomic Force Microcopy (AFM) confirmed the effectiveness of the assembling steps on the gold surface starting from the Au/MBA SAMs. The system Au/4-MBA/af-SWCNTs shows an interface with large ordered array, which exhibits a high activity for the electrooxidation of L-cysteine (L-cys). Theoretical calculations suggest that the incorporation of the af-SWCNTs increased the activity of the assembly to electronic transfer and it was observed that the electrooxidation reaction is energetically favorable. |
2017 |
Tailoring Electroactive Surfaces by Non-Template Molecular Assembly. Towards Electrooxidation of L-Cysteine Artículo de revista Electrochimica Acta, 254 , pp. 201-213, 2017, ISSN: 0013-4686. |