Homogeneous Catalysts Based on First‐Row Transition‐Metals for Electrochemical Water Oxidation

Zhang, Luhua; Mathew, Simon; Hessels, Joeri; Reek, Joost N. H.; Yu, Fengshou

doi:10.1002/cssc.202001876

Cited by 81 publications

(70 citation statements)

References 137 publications

(189 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Being a half reaction in the overall water splitting scheme, the oxidation of H 2 O to O 2 involves the concerted removal of four protons and four electrons from two water molecules [41]. Thus, this reaction is both energetically demanding and kinetically limited.…”

Section: Locs As Homogeneous Catalysts For Water Oxidationmentioning

confidence: 99%

Recent Advances in the Catalytic Applications of Lanthanide-Oxo Clusters

et al. 2021

View full text Add to dashboard Cite

Lanthanide-oxo/hydroxo clusters (LOCs) in this mini-review refer to polynuclear complexes featuring a polyhedral metal-oxo/hydroxo cluster core of lanthanide ions exclusively or with coexisting 3d metal ions. We summarize herein the recent works using this unique family of cluster complexes for catalysis; this aspect of research stands in stark contrast to their extensively studied synthetic and structural chemistry as well as the much-researched magnetic properties. Following a brief introduction of the synthetic strategies for these clusters, pertinent results from available literature reports are surveyed and discussed according to the types of catalyzed reactions. Particular attention was paid to the selection of a cluster catalyst for a specific type of reactions as well as the corresponding reaction mechanism. To the end, the advantages and challenges in utilizing LOCs as multifunctional catalysts are summarized, and possible future research directions are proposed.

show abstract

Section: Locs As Homogeneous Catalysts For Water Oxidationmentioning

confidence: 99%

Recent Advances in the Catalytic Applications of Lanthanide-Oxo Clusters

et al. 2021

View full text Add to dashboard Cite

show abstract

“…But, electrocatalytic water oxidation presents several challenges including commonly observed sluggish kinetics and catalyst instability. [5][6][7][8] Therefore, advances for solid-state electroanodes that could be used in the assembly of artificial photosynthesis devices are desirable for the development of water-splitting devices.…”

Section: Introductionmentioning

confidence: 99%

Noncovalent Immobilization of Pentamethylcyclopentadienyl Iridium Complexes on Ordered Mesoporous Carbon for Electrocatalytic Water Oxidation

et al. 2021

View full text Add to dashboard Cite

The attachment of molecular catalysts to conductive supports for the preparation of solid‐state anodes is important for the development of devices for electrocatalytic water oxidation. The preparation and characterization of three molecular cyclopentadienyl iridium(III) complexes, Cp*Ir(1‐pyrenyl(2‐pyridyl)ethanolate‐κO,κN)Cl (1) (Cp* = pentamethylcyclopentadienyl), Cp*Ir(diphenyl(2‐pyridyl)methanolate‐κO,κN)Cl (2), and [Cp*Ir(4‐(1‐pyrenyl)‐2,2′‐bipyridine)Cl]Cl (3), as precursors for electrochemical water oxidation catalysts, are reported. These complexes contain aromatic groups that can be attached via noncovalent π‐stacking to ordered mesoporous carbon (OMC). The resulting iridium‐based OMC materials (Ir‐1, Ir‐2, and Ir‐3) were tested for electrocatalytic water oxidation leading to turnover frequencies (TOFs) of 0.9–1.6 s−1 at an overpotential of 300 mV under acidic conditions. The stability of the materials is demonstrated by electrochemical cycling and X‐ray absorption spectroscopy analysis before and after catalysis. Theoretical studies on the interactions between the molecular complexes and the OMC support provide insight onto the noncovalent binding and are in agreement with the experimental loadings.

show abstract

“…[11][12][13] Earth-abundant transition metal-based materials have received extensive attentions for a couple of electrochemical applications. [14][15][16] For example, cobalt as an abundant metal has been widely explored as water oxidation and proton reduction catalysts, [17][18] while, for ORR, Co oxides such as Co 3 O 4 generally exhibit poor activity. [19] In this context, continuous attentions have been given to boost catalytic performance of Co 3 O 4 for ORR.…”

Section: Introductionmentioning

confidence: 99%

Heterogenization of Ionic liquid Boosting Electrochemical Oxygen Reduction Performance of Co₃O₄ Supported on Graphene Oxide

et al. 2021

Self Cite

View full text Add to dashboard Cite

Electrochemical oxygen reduction is essential for a variety of sustainable energy application technologies. The development of non-noble metal based electrocatalysts with durable stability and lower overpotentials is still a challenge. According to the reaction mechanism, the difficulty is originated from large equilibrium potential for *OO À formation and high instability of it. Here, we synthesized a 2D electrocatalytic material with nano-Co 3 O 4 supported on ionic liquid-functionalized graphene oxide (Co 3 O 4 /ILÀ GO). Experimental results show the heterogenization strategy of IL enables anodic shifts of approximately 150 and 145 mV for the initial and half-wave potentials, respectively, enabling Co 3 O 4 /ILÀ GO a comparable activity to the state-of-the-art Pt/C catalyst. Moreover, Co 3 O 4 /ILÀ GO exhibits an excellent tolerance to methanol and superior long-term stability over Pt/ C making it a promising candidate for ORR in alkaline solutions. Theoretical calculations show the functionalized IL stabilizes the high-energy CoÀ OO À intermediate through a strong pairing effect between the IL cation and the unstable *OO À adduct, and lowers the energy barrier for the subsequent CoÀ OOH formation, which enables the hybrid material a comparable activity and superior durability to Pt/C. To the best of our knowledge, this is the first exploration for heterogenization of IL onto electrode to stabilize crucial intermediates and subsequently boost the catalytic performance.

show abstract

Homogeneous Catalysts Based on First‐Row Transition‐Metals for Electrochemical Water Oxidation

Abstract: Review provides a summary of previous research works highlighting 1 st row TM-based homogeneous WOCs, catalytic mechanisms, followed by strategies for catalytic activity improvements, before closing with a future outlook for this field.

Cited by 81 publications

References 137 publications

Recent Advances in the Catalytic Applications of Lanthanide-Oxo Clusters

Recent Advances in the Catalytic Applications of Lanthanide-Oxo Clusters

Noncovalent Immobilization of Pentamethylcyclopentadienyl Iridium Complexes on Ordered Mesoporous Carbon for Electrocatalytic Water Oxidation

Heterogenization of Ionic liquid Boosting Electrochemical Oxygen Reduction Performance of Co₃O₄ Supported on Graphene Oxide

Contact Info

Product

Resources

About

Homogeneous Catalysts Based on First‐Row Transition‐Metals for Electrochemical Water Oxidation

Abstract: Review provides a summary of previous research works highlighting 1 st row TM-based homogeneous WOCs, catalytic mechanisms, followed by strategies for catalytic activity improvements, before closing with a future outlook for this field.

Cited by 81 publications

References 137 publications

Recent Advances in the Catalytic Applications of Lanthanide-Oxo Clusters

Recent Advances in the Catalytic Applications of Lanthanide-Oxo Clusters

Noncovalent Immobilization of Pentamethylcyclopentadienyl Iridium Complexes on Ordered Mesoporous Carbon for Electrocatalytic Water Oxidation

Heterogenization of Ionic liquid Boosting Electrochemical Oxygen Reduction Performance of Co3O4 Supported on Graphene Oxide

Contact Info

Product

Resources

About

Heterogenization of Ionic liquid Boosting Electrochemical Oxygen Reduction Performance of Co₃O₄ Supported on Graphene Oxide