Mn5O8 Nanoparticles as Efficient Water Oxidation Catalysts at Neutral pH

ACS Catalysis ◽  
2015 ◽  
Vol 5 (8) ◽  
pp. 4624-4628 ◽  
Author(s):  
Donghyuk Jeong ◽  
Kyoungsuk Jin ◽  
Sung Eun Jerng ◽  
Hongmin Seo ◽  
Donghun Kim ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Oxidation Catalysts ◽  
Neutral Ph

scholarly journals Homogeneous photochemical water oxidation with metal salophen complexes in neutral media

2019 ◽  
Vol 18 (11) ◽  
pp. 2782-2791 ◽  
Author(s):  
Md. Ali Asraf ◽  
Chizoba I. Ezugwu ◽  
C. M. Zakaria ◽  
Francis Verpoort
Keyword(s):  
Water Oxidation ◽  
Oxidation Catalysts ◽  
Neutral Ph ◽  
Earth Abundant ◽  
Neutral Media

The development of water oxidation catalysts based on Earth-abundant metals that can function at neutral pH remains a basic chemical challenge.

Revisiting Dinuclear Ruthenium Water Oxidation Catalysts: Effect of Bridging Ligand Architecture on Catalytic Activity

2021 ◽  
Vol 60 (3) ◽  
pp. 1806-1813
Author(s):  
Husain N. Kagalwala ◽  
Mahesh S. Deshmukh ◽  
Elamparuthi Ramasamy ◽  
Neelima Nair ◽  
Rongwei Zhou ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Water Oxidation ◽  
Oxidation Catalysts ◽  
Bridging Ligand ◽  
Dinuclear Ruthenium

Heterogeneous Water Oxidation Catalysts for Molecular Anodes and Photoanodes

Solar RRL ◽  
2021 ◽  
Author(s):  
Matthew V. Sheridan ◽  
Benjamin D. Sherman ◽  
Yi Xie ◽  
Ying Wang
Keyword(s):  
Water Oxidation ◽  
Oxidation Catalysts

scholarly journals Design of Molecular Water Oxidation Catalysts Stabilized by Ultrathin Inorganic Overlayers—Is Active Site Protection Necessary?

Inorganics ◽  
2018 ◽  
Vol 6 (4) ◽  
pp. 105 ◽  
Author(s):  
Laurent Sévery ◽  
Sebastian Siol ◽  
S. Tilley
Keyword(s):  
Water Oxidation ◽  
Atomic Layer ◽  
Deposition Process ◽  
Operating Conditions ◽  
Molecular Water ◽  
Side Reactions ◽  
Aqueous Environment ◽  
Oxidation Catalysts ◽  
Initial Onset ◽  
Anchoring Groups

Anchored molecular catalysts provide a good step towards bridging the gap between homogeneous and heterogeneous catalysis. However, applications in an aqueous environment pose a serious challenge to anchoring groups in terms of stability. Ultrathin overlayers embedding these catalysts on the surface using atomic layer deposition (ALD) are an elegant solution to tackle the anchoring group instability. The propensity of ALD precursors to react with water leads to the question whether molecules containing aqua ligands, such as most water oxidation complexes, can be protected without side reactions and deactivation during the deposition process. We synthesized two iridium and two ruthenium-based water oxidation catalysts, which contained an aqua ligand (Ir–OH2 and Ru–OH2) or a chloride (Ir–Cl and Ru–Cl) that served as a protecting group for the former. Using a ligand exchange reaction on the anchored and partially embedded Ru–Cl, the optimal overlayer thickness was determined to be 1.6 nm. An electrochemical test of the protected catalysts on meso-ITO showed different behaviors for the Ru and the Ir catalysts. The former showed no onset difference between protected and non-protected versions, but limited stability. Ir–Cl displayed excellent stability, whilst the unprotected catalyst Ir–OH2 showed a later initial onset. Self-regeneration of the catalytic activity of Ir–OH2 under operating conditions was observed. We propose chloride ligands as generally applicable protecting groups for catalysts that are to be stabilized on surfaces using ALD.

In Situ Formation of Efficient Cobalt-Based Water Oxidation Catalysts from Co2+-Containing Tungstate and Molybdate Solutions

2015 ◽  
Vol 10 (10) ◽  
pp. 2228-2233 ◽  
Author(s):  
Biaobiao Zhang ◽  
Xiujuan Wu ◽  
Fei Li ◽  
Fengshou Yu ◽  
Yong Wang ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Oxidation Catalysts ◽  
In Situ Formation

Nanostructured Manganese Oxides as Highly Active Water Oxidation Catalysts: A Boost from Manganese Precursor Chemistry

ChemSusChem ◽  
2014 ◽  
Vol 7 (8) ◽  
pp. 2202-2211 ◽  
Author(s):  
Prashanth W. Menezes ◽  
Arindam Indra ◽  
Patrick Littlewood ◽  
Michael Schwarze ◽  
Caren Göbel ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Manganese Oxides ◽  
Precursor Chemistry ◽  
Oxidation Catalysts ◽  
Highly Active ◽  
Manganese Precursor

A Nickel(II) Complex as a Homogeneous Electrocatalyst for Water Oxidation at Neutral pH: Dual Role of HPO42−in Catalysis

ChemCatChem ◽  
2016 ◽  
Vol 8 (20) ◽  
pp. 3287-3293 ◽  
Author(s):  
Jia-Wei Wang ◽  
Xiang-Qiong Zhang ◽  
Hai-Hua Huang ◽  
Tong-Bu Lu
Keyword(s):  
Water Oxidation ◽  
Dual Role ◽  
Neutral Ph

Characterization and performance of electrostatically adsorbed Ru–Hbpp water oxidation catalysts

2014 ◽  
Vol 4 (1) ◽  
pp. 190-199 ◽  
Author(s):  
Joan Aguiló ◽  
Laia Francàs ◽  
Hai Jie Liu ◽  
Roger Bofill ◽  
Jordi García-Antón ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Oxidation Catalysts ◽  
And Performance
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