ChemInform Abstract: ON THE ROLE OF BUFFERS AND ANIONS IN NICKEL IRON ELECTRODEPOSITION

1980 ◽  
Vol 11 (12) ◽  
Author(s):  
J. HORKANS
Keyword(s):  
Nickel Iron ◽  
Iron Electrodeposition

Rational Design Combining Morphology and Charge-Dynamic for Hematite/Nickel–Iron Oxide Thin-Layer Photoanodes: Insights into the Role of the Absorber/Catalyst Junction

2019 ◽  
Vol 11 (51) ◽  
pp. 48002-48012 ◽  
Author(s):  
Michele Orlandi ◽  
Serena Berardi ◽  
Alberto Mazzi ◽  
Stefano Caramori ◽  
Rita Boaretto ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Thin Layer ◽  
Rational Design ◽  
Nickel Iron ◽  
Charge Dynamic

Understanding the role of cerium during VIM refining of nickel-chromium and nickel-iron alloys

1992 ◽  
Vol 21 (1) ◽  
pp. 603-611
Author(s):  
D. Li ◽  
F. Cosandey ◽  
G. E. Maurer ◽  
R. Foote ◽  
J. K. Tien
Keyword(s):  
Iron Alloys ◽  
Nickel Iron ◽  
Nickel Chromium

Understanding the role of nickel–iron (oxy)hydroxide (NiFeOOH) electrocatalysts on hematite photoanodes

2021 ◽  
Author(s):  
Jihye Lee ◽  
Daye Seo ◽  
Sunghwan Won ◽  
Taek Dong Chung
Keyword(s):  
Surface Charge ◽  
Water Oxidation ◽  
Oxidation Kinetics ◽  
Charge Recombination ◽  
Dual Function ◽  
Nickel Iron ◽  
Anodic Deposition

A NiFeOOH electrocatalyst prepared by photo-assisted anodic deposition on hematite performs a dual function: increasing the water oxidation kinetics and suppressing surface charge recombination.

Nickel–Iron Oxyhydroxide Oxygen-Evolution Electrocatalysts: The Role of Intentional and Incidental Iron Incorporation

2014 ◽  
Vol 136 (18) ◽  
pp. 6744-6753 ◽  
Author(s):  
Lena Trotochaud ◽  
Samantha L. Young ◽  
James K. Ranney ◽  
Shannon W. Boettcher
Keyword(s):  
Oxygen Evolution ◽  
Iron Oxyhydroxide ◽  
Nickel Iron ◽  
Iron Incorporation

Unveiling Role of Sulfate Ion in Nickel‐Iron (oxy)Hydroxide with Enhanced Oxygen‐Evolving Performance

2021 ◽  
pp. 2102772
Author(s):  
Hanxiao Liao ◽  
Tao Luo ◽  
Pengfei Tan ◽  
Kejun Chen ◽  
Lili Lu ◽  
...  
Keyword(s):  
Sulfate Ion ◽  
Nickel Iron ◽  
Oxygen Evolving

scholarly journals Water oxidation kinetics of nanoporous BiVO4 photoanodes functionalised with nickel/iron oxyhydroxide electrocatalysts

2021 ◽  
Author(s):  
Laia Francàs ◽  
Shababa Selim ◽  
Sacha Corby ◽  
Dongho Lee ◽  
Camilo A. Mesa ◽  
...  
Keyword(s):  
Reaction Kinetics ◽  
Water Oxidation ◽  
Oxidation Kinetics ◽  
Charge Accumulation ◽  
Iron Oxyhydroxide ◽  
Nickel Iron ◽  
Co Catalysts ◽  
Fe Oxyhydroxides ◽  
Kinetics Of

Elucidating the role of charge accumulation and reaction kinetics in governing the performance of Ni/Fe oxyhydroxides as electrocatalysts and as co-catalysts on BiVO4 photoanodes water oxidation.

Understanding the role of cerium during VIM refining of nickel-chromium and nickel-iron alloys

1982 ◽  
Vol 13 (4) ◽  
pp. 603-611 ◽  
Author(s):  
D. Li ◽  
F. Cosandey ◽  
G. E. Maurer ◽  
R. Foote ◽  
J. K. Tien
Keyword(s):  
Iron Alloys ◽  
Nickel Iron ◽  
Nickel Chromium

scholarly journals The H2 Sensor of Ralstonia eutropha Is a Member of the Subclass of Regulatory [NiFe] Hydrogenases

2000 ◽  
Vol 182 (10) ◽  
pp. 2716-2724 ◽  
Author(s):  
Laura Kleihues ◽  
Oliver Lenz ◽  
Michael Bernhard ◽  
Thorsten Buhrke ◽  
Bärbel Friedrich
Keyword(s):  
Ralstonia Eutropha ◽  
Regulatory Protein ◽  
Regulatory System ◽  
Structural Features ◽  
Regulatory Function ◽  
Nickel Iron ◽  
H2 Sensor ◽  
Overexpression System ◽  
Electron Transfer Processes

ABSTRACT Two energy-generating hydrogenases enable the aerobic hydrogen bacterium Ralstonia eutropha (formerly Alcaligenes eutrophus) to use molecular hydrogen as the sole energy source. The complex synthesis of the nickel-iron-containing enzymes has to be efficiently regulated in response to H2, which is available in low amounts in aerobic environments. H2 sensing inR. eutropha is achieved by a hydrogenase-like protein which controls the hydrogenase gene expression in concert with a two-component regulatory system. In this study we show that the H2 sensor of R. eutropha is a cytoplasmic protein. Although capable of H2 oxidation with redox dyes as electron acceptors, the protein did not support lithoautotrophic growth in the absence of the energy-generating hydrogenases. A specifically designed overexpression system for R. eutrophaprovided the basis for identifying the H2 sensor as a nickel-containing regulatory protein. The data support previous results which showed that the sensor has an active site similar to that of prototypic [NiFe] hydrogenases (A. J. Pierik, M. Schmelz, O. Lenz, B. Friedrich, and S. P. J. Albracht, FEBS Lett. 438:231–235, 1998). It is demonstrated that in addition to the enzymatic activity the regulatory function of the H2 sensor is nickel dependent. The results suggest that H2 sensing requires an active [NiFe] hydrogenase, leaving the question open whether only H2 binding or subsequent H2oxidation and electron transfer processes are necessary for signaling. The regulatory role of the H2-sensing hydrogenase ofR. eutropha, which has also been investigated in other hydrogen-oxidizing bacteria, is intimately correlated with a set of typical structural features. Thus, the family of H2 sensors represents a novel subclass of [NiFe] hydrogenases denoted as the “regulatory hydrogenases.”

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