A water-soluble iron electrocatalyst for water oxidation with high TOF

Wang, Zhuo-Qiang; Wang, Zhichun; Zhan, Shu‐Zhong; Ye, Jianshan

doi:10.1016/j.apcata.2014.11.012

Cited by 40 publications

(20 citation statements)

References 50 publications

(7 reference statements)

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“…The 1 exhibits one reversible couple at À0.35 V, whichc an be assigned to the metal-centered Fe III/II process. [74] This result has fully testified the existence of charge transfer process between the ligand and ferric ion. The interesting AC conductivity behavior perhaps derives from the composite action of chargetransfer and polarization.…”

Section: Conductivity Propertiesmentioning

confidence: 78%

Dielectric Relaxation and Beyond Limiting Behavior of Alternating‐Current Conductivity in a Supermolecular Ferroelectric

Tong

Tian

Duan

et al. 2019

Chemistry An Asian Journal

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A cyclen‐based hybrid supermolecule crystal, [(FeCl2)(cyclen)]Cl (1), where cyclen=1,4,7,10‐tetraazacyclododecane, was prepared using a liquid–liquid diffusion approach. The variable crystal structures exhibit that compound 1 belongs to an orthorhombic crystal system, Pna21 space group (point group C2V) in the temperature range of 150–400 K. This hybrid supermolecule shows a dielectric relaxation behavior around room temperature, and the ferroelectric nature of 1 has been directly verified by hysteresis measurements. In addition, the AC (alternating current) conductivity study reveals that the 1 displays a beyond limiting behavior. These interesting findings are for the first time reported in the field of supermolecular ferroelectrics. This study may open a new way to construct supermolecular ferroelectrics and give insights into their conductor behavior.

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Section: Conductivity Propertiesmentioning

confidence: 78%

Dielectric Relaxation and Beyond Limiting Behavior of Alternating‐Current Conductivity in a Supermolecular Ferroelectric

Tong

Tian

Duan

et al. 2019

Chemistry An Asian Journal

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“…Zhan et al. also reported a water‐soluble MWOC ( 61 ; Figure ) with a TOF of about 65 s −1 at pH 11, which showed sustained water oxidation catalysis at an indium tin oxide (ITO) electrode over an electrolysis period of 36 h with 91.5 % Faradaic yield . Najafpour et al.…”

Section: Iron‐based Electrocatalysts For Water Oxidationmentioning

confidence: 97%

“…Zhan et al also reported aw ater-soluble MWOC( 61; Figure 16) with aT OF of about 65 s À1 at pH 11,w hich showed sustained water oxidation catalysis at an indium tin oxide (ITO) electrode over an electrolysis period of 36 hw ith 91.5 %F aradaic yield. [44] Najafpour et al attributed water oxidation to the formationo fi ron oxide and carefullyc onfirmed their hypothe-sis throughS EM, energy-dispersive X-ray spectrometry (EDS), XRD, NMR spectroscopy,a nd electrochemical methods. [45] 6.…”

Section: Iron-based Electrocatalysts For Water Oxidationmentioning

confidence: 99%

Iron‐Based Molecular Water Oxidation Catalysts: Abundant, Cheap, and Promising

Liu

Zhang

Sun

2018

Chemistry An Asian Journal

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An efficient and robustw ater oxidation catalyst based on abundant and cheap materials is the key to converting solar energy into fuels through artificial photosynthesis for the future of humans. The development of molecular water oxidation catalysts (MWOCs) is as mart way to achieve promising catalytic activity,t hanks to the clear structures and catalytic mechanisms of molecular catalysts. Effi-cient MWOCs based on noble-metalc omplexes, for example, ruthenium and iridium,h ave been well developed over the last 30 years;h owever, the developmento fe arth-abundant metal-based MWOCs is very limited and still challenging. Herein,t he promising prospecto fi ron-based MWOCs is highlighted, with ac omprehensive summary of previously reporteds tudiesa nd future research focus in this area. Iron-Based MWOC with TAMLsBy employing tetraamido macrocyclic ligands (TAMLs), which are composed of at ypical framework to hold high-valent metal ions, [16] Bernharde tal.,i n2 010, reported the first series [a] T.

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“…Due to the superior atom efficiency, tunable structures and readily available characterization methods, the transition metal complexes had been explored deeply. Until now, quantities of transition metal catalysts based copper, manganese, cobalt, iron and nickel have been explored for water oxidation. The catalysts can electrocatalyze water oxidation at a moderate or good turnover frequency (TOF) and a low overpotential.…”

Section: Introductionmentioning

confidence: 99%

Half‐sandwich Ir (III) and Rh (III) complexes as catalysts for water oxidation with double‐site

Peng

Liu

Han

et al. 2019

Applied Organom Chemis

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A series of neutral binuclear iridium and rhodium complexes were synthesized based on bis‐imine ligands under mild conditions. These half‐sandwich late transition metal complexes were isolated in good yields and characterized by elemental analysis, 1H NMR, 13C NMR, HR‐MS, and FT‐IR spectroscopies, and the solid state structure of complexes 1 and 2 were further confirmed by single‐crystal X‐ray diffraction. Cyclic voltammetry (CV) characterization indicated that the complex 1 has the best catalyst for water oxidation process with TOF of 0.8 s−1 at low overpotential of 0.325 V in methanol‐phosphate buffer. The proposed double‐site water oxidation mechanism had been also speculated.

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A water-soluble iron electrocatalyst for water oxidation with high TOF

Cited by 40 publications

References 50 publications

Dielectric Relaxation and Beyond Limiting Behavior of Alternating‐Current Conductivity in a Supermolecular Ferroelectric

Dielectric Relaxation and Beyond Limiting Behavior of Alternating‐Current Conductivity in a Supermolecular Ferroelectric

Iron‐Based Molecular Water Oxidation Catalysts: Abundant, Cheap, and Promising

Half‐sandwich Ir (III) and Rh (III) complexes as catalysts for water oxidation with double‐site

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