A molecular iron(III) electrocatalyst supported by amine-bis(phenolate) ligand for water reduction

Fu, Ling-Zhi; Zhou, Lei; Tang, Ling‐Zhi; Zhang, Yunxiao; Zhan, Shu‐Zhong

doi:10.1016/j.ijhydene.2015.05.026

Cited by 17 publications

(2 citation statements)

References 41 publications

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“…Encouraged by the fact that iron complexes can serve as electrocatalysts for hydrogen evolution, 37,38 we tried to investigate the electrocatalytic properties of [(H 2 O)(bpc)Fe–O–Fe(bpc)(H 2 O)]. Acetic acid was introduced as a proton resource to check the electrocatalytic activity, giving the results listed in Fig.…”

Section: Resultsmentioning

confidence: 99%

A mono-oxo-bridged binuclear iron(iii) complex with a Fe–O–Fe angle of 180.0° and its catalytic activity for hydrogen evolution

Sun

Tan

et al. 2022

New J. Chem.

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Section: Resultsmentioning

confidence: 99%

A mono-oxo-bridged binuclear iron(iii) complex with a Fe–O–Fe angle of 180.0° and its catalytic activity for hydrogen evolution

Sun

Tan

et al. 2022

New J. Chem.

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“…27,28 On the other hand, the literature disclosed restricted publications in aqueous solutions on the electrochemical production of H 2 on metal-complex electrocatalysts. [29][30][31][32] In addition, and to the best of our knowledge, there are no results reported in the literature concerning HER electrocatalysis studies on transition-metal complexes in strong alkaline solutions, the most applied electrolytes in industry.…”

Section: Introductionmentioning

confidence: 98%

A newly synthesized bipyridine‐containing manganese( II ) complex immobilized on graphene oxide as active electrocatalyst for hydrogen gas production from alkaline solutions: Experimental and theoretical studies

Alharthi

Ibrahim

El‐Sheshtawy

et al. 2022

Intl J of Energy Research

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A new bipyridine-containing manganese (II) complex, namely [(BPy) 2 MnCl 2 ]Á 0.5H 2 O (MnC), was synthesized and characterized. Spectral and X-ray structural features revealed that MnC has an octahedral environment around Mn(II). Graphene oxide (GO) was noncovalently functionalized with the MnC.MnC-and (MnC/GO)-modified glassy carbon (GC) interfaces with different loading densities (0.2, 0.4, 0.8, and 1.0 mg cm À2 ) were tested as electrocatalysts for efficient generation of H 2 in 0.1 M KOH solution. The GC-MnC catalysts exhibited high electrocatalytic activity for the HER, which enhances upon increasing the catalyst's loading density. The GC-MnC catalyst's HER activity, at any tested loading density, was found to further increase upon supporting MnC on GO. The best performing electrocatalyst, namely GC-(MnC/GO) with a loading density of 1.0 mg cm À2 , exhibited high HER catalytic activity with a low onset potential value of À22 mV vs. reference hydrogen electrode (RHE) and a high exchange current density of 0.75 mA cm À2 . It delivered a current density of 10 mA cm À2 at an overpotential value of 119 mV. In addition, it recorded a Tafel slope value of À114 mV dec À1 . These HER electrochemical kinetic parameters approached those measured here for the commercial Pt/C under the same operating conditions (À10 mV vs. RHE, 0.88 mA cm À2 , 113 mV dec À1 , and 110 mV to yield a current density of 10 mA cm À2 ) and also comparable to the most active molecular electrocatalysts for H 2 generation from aqueous alkaline electrolytes published in the literature. The long-term stability of the best performing electrocatalyst, namely GC-MnC

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Effects of metal centers of complexes supported by S,S′‐bis(2‐pyridylmethyl)‐1,2‐thioethane on catalytic activities for electrochemical‐ and photochemical‐driven hydrogen production

Liu

Xie

Wang

et al. 2020

Applied Organom Chemis

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S,S′‐bis(2‐pyridylmethyl)‐1,2‐thioethane (bpte) reacts with MCl2 (M = Co, Ni, and Fe) to give three complexes, namely, [CoII(bpte)Cl2] (1), [NiII(bpte)Cl2] (2), and [FeII(bpte)Cl2] (3), respectively. They all act as catalysts for proton or water reduction to dihydrogen via electrolysis or photolysis. Under an overpotential of 837.6 mV, the electrolysis of a neutral buffer with complex 1, 2, or 3 can provide 418 (±3), 555 (±3), and 243 (±3) moles of hydrogen per mole of catalyst per hour (mol H2/mol catalyst/h), respectively. Under blue light, together with a photosensitizer and ascorbic acid (H2A) as a sacrificial electron donor, the photolysis of an aqueous solution (pH 4.5) containing complex 1, 2, or 3 can afford 9060 (±5), 24,900 (±5), and 10,630 (±5) moles H2 per mole of catalyst (mol of H2 [mol of cat]−1) during 83‐h irradiation with an average apparent quantum yield of 7.1%, 24%, and 10%, respectively. The results show that the nickel complex [NiII(bpte)Cl2] exhibits a more efficient activity for hydrogen generation than the iron or cobalt species. These findings may offer a new chemical paradigm for the design of efficient catalysts.

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A molecular iron(III) electrocatalyst supported by amine-bis(phenolate) ligand for water reduction

Cited by 17 publications

References 41 publications

A mono-oxo-bridged binuclear iron(iii) complex with a Fe–O–Fe angle of 180.0° and its catalytic activity for hydrogen evolution

A mono-oxo-bridged binuclear iron(iii) complex with a Fe–O–Fe angle of 180.0° and its catalytic activity for hydrogen evolution

A newly synthesized bipyridine‐containing manganese( II ) complex immobilized on graphene oxide as active electrocatalyst for hydrogen gas production from alkaline solutions: Experimental and theoretical studies

Effects of metal centers of complexes supported by S,S′‐bis(2‐pyridylmethyl)‐1,2‐thioethane on catalytic activities for electrochemical‐ and photochemical‐driven hydrogen production

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