Investigations into the electrochemical, surface, and electrocatalytic properties of the surface-immobilized polyoxometalate, TBA3K[SiW10O36(PhPO)2]

Mustansara Yaqub; Shahzad Imar; Fathima Laffir; Gordon Armstrong; Timothy McCormac

doi:10.1021/am5017864

Investigations into the electrochemical, surface, and electrocatalytic properties of the surface-immobilized polyoxometalate, TBA₃K[SiW₁₀O₃₆(PhPO)₂]

Mustansara Yaqub, Shahzad Imar, Fathima Laffir, Gordon Armstrong, Timothy McCormac

Dundalk Institute of Technology

Research output: Contribution to journal › Article › peer-review

Abstract

Surface anchoring of an organic functionalized POM, TBA₃K[SiW₁₀O₃₆(PhPO)₂] was carried out by two methods, the layer-by-layer (LBL) assembly technique by employing a pentaerythritol-based ruthenium(II) metallodendrimer as a cationic moiety and also by entrapping the POM in a conducting polypyrrole film. The redox behavior of the constructed films was studied by using cyclic voltammetry and electrochemical impedance spectroscopy. The surface morphologies of the constructed multilayers were examined by scanning electron microscopy and atomic force microscopy. X-ray photoelectron spectroscopy was conducted to confirm the elements present within the fabricated films. The multilayer assembly was also investigated for its catalytic efficiency towards the reduction of nitrite. (Graph Presented).

Original language	English
Pages (from-to)	1046-1056
Number of pages	11
Journal	ACS Applied Materials and Interfaces
Volume	7
Issue number	2
DOIs	https://doi.org/10.1021/am5017864
Publication status	Published - 21 Jan 2015

Keywords

Electrocatalysis
Layer-by-layer
Nitrite
Polyoxometalate
Polypyrrole

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10.1021/am5017864

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title = "Investigations into the electrochemical, surface, and electrocatalytic properties of the surface-immobilized polyoxometalate, TBA3K[SiW10O36(PhPO)2]",

abstract = "Surface anchoring of an organic functionalized POM, TBA3K[SiW10O36(PhPO)2] was carried out by two methods, the layer-by-layer (LBL) assembly technique by employing a pentaerythritol-based ruthenium(II) metallodendrimer as a cationic moiety and also by entrapping the POM in a conducting polypyrrole film. The redox behavior of the constructed films was studied by using cyclic voltammetry and electrochemical impedance spectroscopy. The surface morphologies of the constructed multilayers were examined by scanning electron microscopy and atomic force microscopy. X-ray photoelectron spectroscopy was conducted to confirm the elements present within the fabricated films. The multilayer assembly was also investigated for its catalytic efficiency towards the reduction of nitrite. (Graph Presented).",

keywords = "Electrocatalysis, Layer-by-layer, Nitrite, Polyoxometalate, Polypyrrole",

author = "Mustansara Yaqub and Shahzad Imar and Fathima Laffir and Gordon Armstrong and Timothy McCormac",

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AU - Yaqub, Mustansara

AU - Imar, Shahzad

AU - Laffir, Fathima

AU - Armstrong, Gordon

AU - McCormac, Timothy

PY - 2015/1/21

Y1 - 2015/1/21

N2 - Surface anchoring of an organic functionalized POM, TBA3K[SiW10O36(PhPO)2] was carried out by two methods, the layer-by-layer (LBL) assembly technique by employing a pentaerythritol-based ruthenium(II) metallodendrimer as a cationic moiety and also by entrapping the POM in a conducting polypyrrole film. The redox behavior of the constructed films was studied by using cyclic voltammetry and electrochemical impedance spectroscopy. The surface morphologies of the constructed multilayers were examined by scanning electron microscopy and atomic force microscopy. X-ray photoelectron spectroscopy was conducted to confirm the elements present within the fabricated films. The multilayer assembly was also investigated for its catalytic efficiency towards the reduction of nitrite. (Graph Presented).

AB - Surface anchoring of an organic functionalized POM, TBA3K[SiW10O36(PhPO)2] was carried out by two methods, the layer-by-layer (LBL) assembly technique by employing a pentaerythritol-based ruthenium(II) metallodendrimer as a cationic moiety and also by entrapping the POM in a conducting polypyrrole film. The redox behavior of the constructed films was studied by using cyclic voltammetry and electrochemical impedance spectroscopy. The surface morphologies of the constructed multilayers were examined by scanning electron microscopy and atomic force microscopy. X-ray photoelectron spectroscopy was conducted to confirm the elements present within the fabricated films. The multilayer assembly was also investigated for its catalytic efficiency towards the reduction of nitrite. (Graph Presented).

KW - Electrocatalysis

KW - Layer-by-layer

KW - Nitrite

KW - Polyoxometalate

KW - Polypyrrole

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Investigations into the electrochemical, surface, and electrocatalytic properties of the surface-immobilized polyoxometalate, TBA₃K[SiW₁₀O₃₆(PhPO)₂]

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Keywords

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