Electrochemical characterization of surface-bound redox polymers derived from 1,1'-bis[((3-(triethoxysilyl)propyl)amino)carbonyl]cobaltocenium: charge transport, anion binding, and use in photoelectrochemical hydrogen generation

Simon, Richard; Mallouk, Thomas E.; Daube, Karen A.; Wrighton, Mark S.

doi:10.1021/ic00214a008

Cited by 57 publications

(22 citation statements)

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“…The dispersion of small particles of platinum, palladium and rhodium in the thin films of redox polymers [7,8], conducting polymers [9 ± 12], electroinactive polymers [13 ± 15], and functionalized conducting polymers [16,17] have been investigated by various authors. Very recently, electrodeposition of copper into functionalized polypyrrole films has also been demonstrated [18].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Deposition of Gold Metal Particles into 3‐Dimensional Polypyrrole Film Deposited on a Highly Oriented Pyrolytic Graphite

2003

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Electrochemical techniques and lateral friction microscopy (LFM) are exploited to characterize the deposition of gold metal particles onto the 3-dimensional (3-D) polypyrrole (PPy) film deposited on 2-dimensional (2-D) highly oriented pyrolytic graphite (HOPG) substrate surface in an aqueous solution involving 0.01 M pyrrole and 0.1 M LiClO 4 ¥ 3H 2 O. Cyclic voltammetry is utilized to find the gold deposition potential onto the PPy film from 0.001 M KAu(CN) 2 / KOH solution. The gold deposition potential is found to be in the range of À 1.2 V to À 1.4 V. Chronoamperometry is used to find out the nucleation and growth mechanism of gold metal particles onto PPy film. When the PPy film is thin, the mechanism follows the 3-D instantaneous and moved towards 3-D progressive as the film thickness increases. Considering the high resistance of thick PPy film and insulating and compact nature of the film at more cathodic potentials, it is suggested that the gold nuclei are formed first on the HOPG substrate surface, move to the PPy film surface and then distributed inside the PPy matrix. Since the friction of gold and the PPy film is different, the LFM is found to be an effective tool to see the distribution of gold particles in the domain boundaries of the PPy film.

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Section: Introductionmentioning

confidence: 99%

Electrochemical Deposition of Gold Metal Particles into 3‐Dimensional Polypyrrole Film Deposited on a Highly Oriented Pyrolytic Graphite

2003

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“…For instance, polymers with different characteristic redox active moieties can show preference for cations or anions by grafting an oppositely charged group. [44,140,282,297] In another example, LDHs normally prefer anion insertion due to their positively charged laminates. Li et al [298] creatively introduced hydrogen vacancies into LDHs via an electrochemical activation (ECA) strategy, which induces LDHs (repulsive to cations) to undergo a phase transition to hydrogen-vacancy-enriched LDHs (attractive to cations).…”

Section: Selective Cation/anion Removalmentioning

confidence: 99%

Faradaic Electrodes Open a New Era for Capacitive Deionization

et al. 2020

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Capacitive deionization (CDI) is an emerging desalination technology for effective removal of ionic species from aqueous solutions. Compared to conventional CDI, which is based on carbon electrodes and struggles with high salinity streams due to a limited salt removal capacity by ion electrosorption and excessive co-ion expulsion, the emerging Faradaic electrodes provide unique opportunities to upgrade the CDI performance, i.e., achieving much higher salt removal capacities and energy-efficient desalination for high salinity streams, due to the Faradaic reaction for ion capture. This article presents a comprehensive overview on the current developments of Faradaic electrode materials for CDI. Here, the fundamentals of Faradaic electrode-based CDI are first introduced in detail, including novel CDI cell architectures, key CDI performance metrics, ion capture mechanisms, and the design principles of Faradaic electrode materials. Three main categories of Faradaic electrode materials are summarized and discussed regarding their crystal structure, physicochemical characteristics, and desalination performance. In particular, the ion capture mechanisms in Faradaic electrode materials are highlighted to obtain a better understanding of the CDI process. Moreover, novel tailored applications, including selective ion removal and contaminant removal, are specifically introduced. Finally, the remaining challenges and research directions are also outlined to provide guidelines for future research.

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“…125 Substituted cyclopentadiene, particularly methylcyclopentadiene, is often used to prepare substituted cobaltocenium 124–147. Some efforts have been recently focused on cobaltocenium‐containing dendrimer synthesis 148–155. Although limited early work produced low molecular weight main‐chain cobaltocenium polymers (mostly oligomers due to their poor solubility) by step‐growth polymerization, explicit characterization of macromolecular structures was often missing 6.…”

Section: Side‐chain Cobaltocenium‐containing Polymersmentioning

confidence: 99%

“…Although limited early work produced low molecular weight main‐chain cobaltocenium polymers (mostly oligomers due to their poor solubility) by step‐growth polymerization, explicit characterization of macromolecular structures was often missing 6. 126, 135–138, 155–158 Nevertheless, these cobaltocenium compounds, dendrimers and polymers have shown promising properties such as thermal/chemical stability,137, 150 active redox/sensing,139, 141, 142 biomedical activity,144, 154, 159–162 the use for ion‐exchange163 and molecular electronics, [148 ] etc.…”

Section: Side‐chain Cobaltocenium‐containing Polymersmentioning

confidence: 99%

Side‐Chain Metallocene‐Containing Polymers by Living and Controlled Polymerizations

Hardy

Ren

Zhang

et al. 2012

Israel Journal of Chemistry

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This review summarizes recent work on side-chain metallocene-containing polymers prepared by controlled and living polymerizations, which include living anionic polymerization (LAP), ring-opening metathesis polymerization (ROMP) and controlled radical polymerization (CRP) such as atom transfer radical polymerization (ATRP), reversible addition fragmentation chain transfer polymerization (RAFT), and nitroxide-mediated polymerization (NMP). The majority of efforts in the field are focused on side-chain ferrocene-containing polymers, while cobaltocenium-containing polymers have recently started to draw attention. Future direction on the development of other metallocene-containing polymers is discussed.

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Electrochemical characterization of surface-bound redox polymers derived from 1,1'-bis[((3-(triethoxysilyl)propyl)amino)carbonyl]cobaltocenium: charge transport, anion binding, and use in photoelectrochemical hydrogen generation

Cited by 57 publications

References 1 publication

Electrochemical Deposition of Gold Metal Particles into 3‐Dimensional Polypyrrole Film Deposited on a Highly Oriented Pyrolytic Graphite

Electrochemical Deposition of Gold Metal Particles into 3‐Dimensional Polypyrrole Film Deposited on a Highly Oriented Pyrolytic Graphite

Faradaic Electrodes Open a New Era for Capacitive Deionization

Side‐Chain Metallocene‐Containing Polymers by Living and Controlled Polymerizations

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