In Situ Coupling Reconstruction of Cobalt–Iron Oxide on a Cobalt Phosphate Nanoarray with Interfacial Electronic Features for Highly Enhanced Water Oxidation Catalysis

2020 ◽  
Vol 8 (12) ◽  
pp. 4773-4780 ◽  
Author(s):  
Peng Guo ◽  
Zhaojie Wang ◽  
Shaohui Ge ◽  
Hongyu Chen ◽  
Jinbao Zhang ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Water Oxidation ◽  
Oxidation Catalysis ◽  
Cobalt Iron Oxide ◽  
Cobalt Iron ◽  
Water Oxidation Catalysis ◽  
Cobalt Phosphate

Water Oxidation Catalysis by Birnessite@Iron Oxide Core–Shell Nanocomposites

2015 ◽  
Vol 54 (6) ◽  
pp. 2734-2741 ◽  
Author(s):  
Gökhan Elmaci ◽  
Carolin E. Frey ◽  
Philipp Kurz ◽  
Birgül Zümreoğlu-Karan
Keyword(s):  
Iron Oxide ◽  
Water Oxidation ◽  
Oxidation Catalysis ◽  
Core Shell ◽  
Water Oxidation Catalysis ◽  
Iron Oxide Core

Water oxidation catalysis by using nano-manganese ferrite supported 1D-(tunnelled), 2D-(layered) and 3D-(spinel) manganese oxides

2016 ◽  
Vol 4 (22) ◽  
pp. 8812-8821 ◽  
Author(s):  
Gökhan Elmacı ◽  
Carolin E. Frey ◽  
Philipp Kurz ◽  
Birgül Zümreoğlu-Karan
Keyword(s):  
Iron Oxide ◽  
Comparative Study ◽  
Iron Oxide Nanoparticles ◽  
Water Oxidation ◽  
Manganese Oxides ◽  
Oxidation Catalysis ◽  
Oxide Nanoparticles ◽  
Manganese Ferrite ◽  
Water Oxidation Catalysis ◽  
2D And 3D

A first comparative study on 1D-, 2D- and 3D-manganese oxides supported by iron oxide nanoparticles for use as water oxidation catalysts is presented.

scholarly journals An ultrathin cobalt–iron oxide catalyst for water oxidation on nanostructured hematite photoanodes

2019 ◽  
Vol 7 (11) ◽  
pp. 6012-6020 ◽  
Author(s):  
Laurent Liardet ◽  
Jordan E. Katz ◽  
Jingshan Luo ◽  
Michael Grätzel ◽  
Xile Hu
Keyword(s):  
Iron Oxide ◽  
Water Oxidation ◽  
Oxide Catalyst ◽  
Photoelectrochemical Performance ◽  
Iron Oxide Catalyst ◽  
Cobalt Iron Oxide ◽  
Cobalt Iron ◽  
Optically Transparent

An optically transparent cobalt-iron oxide catalyst improves the photoelectrochemical performance of nanostructured hematite photoanodes.

In Situ ATR Infrared Study of Cobalt-Borate Water Oxidation Catalysts

2020 ◽  
Vol 998 ◽  
pp. 123-133
Author(s):  
Li Fei Xi ◽  
Christoph Schwanke ◽  
Kathrin M. Lange ◽  
Marcel Risch
Keyword(s):  
Water Oxidation ◽  
Attenuated Total Reflection ◽  
Oxidation Catalysis ◽  
Oxidation Catalyst ◽  
Sodium Borate ◽  
Intermediate Species ◽  
Infrared Study ◽  
Electrode Surfaces ◽  
Water Oxidation Catalysis

Understanding the process of water oxidation, especially intermediate species, represents an important step toward gaining a mechanistic understanding of new emerging catalysts. The aim of this study is exploring the process of water oxidation and electrolyte orientation under external potential when using an emerging water oxidation catalyst, CoBi, in sodium borate (NaBi) buffer using in situ attenuated–total-reflection Fourier transform infrared spectroscopy (ATR-FTIR) spectroscopy. CoBi is generated via electrodeposition from aqueous solutions containing borate and Co2+. IR spectra were obtained for CoBi films under applied potentials supporting water oxidation catalysis. The spectra of water and CoBi on ZnSe/Cr/Au electrode surfaces change in intensity and their slope depends on the potential, which is rarely reported. The appearance of new bands at certain potentials is interpreted in terms of the potential-dependent re-alignment of water and borate molecules both from the film and electrolyte. A superoxide surface intermediate at 1027 cm-1 was observed in both thin and thick films. It is proposed to be Co (III)OO*H bridging and relates to a fast water oxidation process. The chemical structure of the intermediate species is proposed finally.

Enhanced Water Oxidation Activity by Introducing Gallium into Cobalt‐Iron Oxide System

2019 ◽  
Vol 7 (1) ◽  
pp. 118-123
Author(s):  
Qiaoqiao Zhang ◽  
Yong Fan ◽  
Wei Wang ◽  
Ning Liu ◽  
Jingqi Guan
Keyword(s):  
Iron Oxide ◽  
Water Oxidation ◽  
Oxide System ◽  
Oxidation Activity ◽  
Cobalt Iron Oxide ◽  
Cobalt Iron

In situ high-temperature electron microscopy of 3DOM cobalt, iron oxide, and nickel

2008 ◽  
Vol 43 (10) ◽  
pp. 3539-3552 ◽  
Author(s):  
Christopher F. Blanford ◽  
C. Barry Carter ◽  
Andreas Stein
Keyword(s):  
Electron Microscopy ◽  
High Temperature ◽  
Iron Oxide ◽  
Cobalt Iron Oxide ◽  
Cobalt Iron ◽  
Temperature Electron
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