Transition metal complexes as electrocatalysts—Development and applications in electro-oxidation reactions

Cheung, Kwong Chak; Wong, Wing Leung; Ma, Dik‐Lung; Lai, Tat Shing

doi:10.1016/j.ccr.2007.04.004

Cited by 108 publications

(62 citation statements)

References 149 publications

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“…The latter was the basis for an Energy Frontier Research Center around Electrocatalysis, Transport Phenomena, and Materials for Innovative Energy Storage funded by the Department of Energy (Acknowledgments), which assumed the use of a single electrocatalyst for dehydrogenation and hydrogenation of LOHCs that would also simplify the conventional hydrogen storage process (10). The envisioned partial electrochemical dehydrogenation of LOHCs typically involves expensive PGM catalysts (11)(12)(13)(14)(15)(16)(17)(18), with weak bases to serve as proton scavengers in lieu of a proton exchange membrane. Reversing the applied potential in the presence of these same components provides a mechanism for regenerating the LOHCs without the need for elevated hydrogen pressure:…”

mentioning

confidence: 99%

Reversible catalytic dehydrogenation of alcohols for energy storage

Bonitatibus

Chakraborty

Doherty

et al. 2015

Proc. Natl. Acad. Sci. U.S.A.

125

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Reversibility of a dehydrogenation/hydrogenation catalytic reaction has been an elusive target for homogeneous catalysis. In this report, reversible acceptorless dehydrogenation of secondary alcohols and diols on iron pincer complexes and reversible oxidative dehydrogenation of primary alcohols/reduction of aldehydes with separate transfer of protons and electrons on iridium complexes are shown. This reactivity suggests a strategy for the development of reversible fuel cell electrocatalysts for partial oxidation (dehydrogenation) of hydroxyl-containing fuels.

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mentioning

confidence: 99%

Reversible catalytic dehydrogenation of alcohols for energy storage

Bonitatibus

Chakraborty

Doherty

et al. 2015

Proc. Natl. Acad. Sci. U.S.A.

125

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“…Recently, many transition metal complexes have been used to catalyze the redox reactions [4][5][6]. The use of transition metal complexes as catalysts in electrochemical reactions is a promising approach in the development of electro-synthesis and electrochemical sensors [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, structure, electrochemistry and electrocatalysis of a new copper(II) complex: [Cu2(bpp)(μ-CH3COO)4] · 2H2O [bpp = 1,3-bis(4-pyridyl)propane]

Wang

Chen

Huang

et al. 2009

Transition Met Chem

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A new coordination polymer [Cu 2 (bpp)(l-CH 3 -COO) 4 ] Á 2H 2 O [bpp = 1,3-bis(4-pyridyl)propane] (1), has been synthesized under open-air mild reaction conditions, and characterized by elemental analysis, IR, TG, and single crystal X-ray diffraction analysis. X-ray diffraction analysis reveals that each two Cu(II) ions are bridged by four l-CH 3 COO -anions to form a dinuclear structure unit, the adjacent dinuclear units are further linked by bpp ligands to construct a one-dimensional (1-D) chain structure. A weak CÁÁÁO hydrogen bonding interaction links the adjacent chains to construct a 3-D supramolecular network with grid-like channels (ca. 14.2 9 14.2 Å ). The electrochemical properties of the copper(II) complex bulk modified carbon paste electrode (1-CPE) have been studied, and the results indicate that 1-CPE gives one-electron quasireversible redox waves in potential range of 400 to -400 mV due to the Cu(II)/Cu(I) couple. The 1-CPE has good electrocatalytic activities toward the reduction of nitrite and bromate in 0.1 M pH 2 phosphates buffer solution, and has remarkable long term stability and especially good surface renewability by simple mechanical polishing in the event of surface fouling, which is important for practical application.

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“…In the former, the catalyst couple merely plays the role of an electron carrier (mediator), whereas the transitory formation of catalyst-substrate adduct occurs in the latter [25]. In addition, the electrons may then react with species adsorbed on the surface, yielding radicals such as O 2 -as a result of the presence of hydroxyl groups, water, and oxygen at the surface of the Gd 3?…”

Section: Mineralization Studiesmentioning

confidence: 99%

Electrochemical degradation of C.I. Reactive Orange 107 using Gadolinium (Gd3+), Neodymium (Nd3+) and Samarium (Sm3+) doped cerium oxide nanoparticles

2015

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Ceria-based composites have been previously developed as functional electrolytes for high performance of solid oxide fuel cells that require high functional electrolyte materials that can provide high ion conductivity for sufficient current output. These composites display hybrid proton and oxygen ion conduction. We developed further composite electrolyte materials containing a catalyst such as rare earth elements; gadolinium (Gd

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Transition metal complexes as electrocatalysts—Development and applications in electro-oxidation reactions

Cited by 108 publications

References 149 publications

Reversible catalytic dehydrogenation of alcohols for energy storage

Reversible catalytic dehydrogenation of alcohols for energy storage

Synthesis, structure, electrochemistry and electrocatalysis of a new copper(II) complex: [Cu2(bpp)(μ-CH3COO)4] · 2H2O [bpp = 1,3-bis(4-pyridyl)propane]

Electrochemical degradation of C.I. Reactive Orange 107 using Gadolinium (Gd3+), Neodymium (Nd3+) and Samarium (Sm3+) doped cerium oxide nanoparticles

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