scholarly journals Electrochemical stability of stainless-steel-made anode for alkaline water electrolysis: Surface catalyst nanostructures and oxygen evolution overpotentials under applying potential cycle loading

2021 ◽  
Vol 122 ◽  
pp. 106902
Author(s):  
Naoto Todoroki ◽  
Toshimasa Wadayama
Keyword(s):  
Stainless Steel ◽  
Oxygen Evolution ◽  
Water Electrolysis ◽  
Electrochemical Stability ◽  
Alkaline Water Electrolysis ◽  
Alkaline Water ◽  
Cycle Loading ◽  
Potential Cycle

Electrochemical Stability of Stainless Steels-Made Alkaline Water Electrolysis Anodes Under Potential Cycle Loadings

2021 ◽  
Vol MA2021-02 (41) ◽  
pp. 1243-1243
Author(s):  
Naoto Todoroki ◽  
Arata Shinomiya ◽  
Toshimasa Wadayama
Keyword(s):  
Stainless Steels ◽  
Water Electrolysis ◽  
Electrochemical Stability ◽  
Alkaline Water Electrolysis ◽  
Alkaline Water ◽  
Potential Cycle

Spark-plasma-sintered porous electrodes for efficient oxygen evolution in alkaline water electrolysis

2019 ◽  
Vol 317 ◽  
pp. 128-138 ◽  
Author(s):  
Thomas Rauscher ◽  
Christian Immanuel Bernäcker ◽  
Stefan Loos ◽  
Marcus Vogt ◽  
Bernd Kieback ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Water Electrolysis ◽  
Porous Electrodes ◽  
Alkaline Water Electrolysis ◽  
Alkaline Water ◽  
Spark Plasma

Laser structured nickel-iron electrodes for oxygen evolution in alkaline water electrolysis

2019 ◽  
Vol 44 (25) ◽  
pp. 12671-12684 ◽  
Author(s):  
Matthias Koj ◽  
Thomas Gimpel ◽  
Wolfgang Schade ◽  
Thomas Turek
Keyword(s):  
Oxygen Evolution ◽  
Water Electrolysis ◽  
Alkaline Water Electrolysis ◽  
Alkaline Water ◽  
Nickel Iron ◽  
Iron Electrodes

Strategy for Improving Oxygen Evolution Performance of Noble Metal Catalysts for Alkaline Water Electrolysis

2020 ◽  
Vol MA2020-02 (38) ◽  
pp. 2436-2436
Author(s):  
Sankar Sasidharan ◽  
Roby Soni ◽  
Hidenori Kuroki ◽  
Shoji Miyanishi ◽  
Anilkumar Gopinathan M ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Noble Metal ◽  
Water Electrolysis ◽  
Metal Catalysts ◽  
Alkaline Water Electrolysis ◽  
Alkaline Water ◽  
Noble Metal Catalysts

Preparation and Characterization of Nickel and Copper Oxide/Hydroxide Films on Stainless Steels Substrates for Use as Cathodes in Alkaline Water Electrolysis

2015 ◽  
Vol 772 ◽  
pp. 55-61
Author(s):  
David S.P.P. Cardoso ◽  
Paulo S.D. Brito ◽  
Luiz F.F.T.T.G. Rodrigues
Keyword(s):  
Stainless Steel ◽  
Copper Oxide ◽  
Electrode Materials ◽  
Water Electrolysis ◽  
304 Stainless Steel ◽  
Alkaline Water Electrolysis ◽  
Alkaline Water ◽  
Good Electrocatalytic Activity ◽  
High Specific Energy ◽  
Oxide Composites

The production high purity hydrogen by water electrolysis based renewable sources as a mean to store energy, has gained some attention in the last years due to the high specific energy of hydrogen, the potentially neutral carbon and zero emission of the usage of H2as fuel. However, it remains certainly necessary to develop efficient and lower cost electrolyzers. Such a situation requires the search for and the development of inexpensive and stable electrode materials, showing low polarization to hydrogen evolution reduction (HER). In this work copper and nickel oxides were studied for use as electrodes for the reduction of hydrogen in alkaline water electrolysis. The nickel and copper oxide composites coatings were deposited electrochemically as oxides/hydroxides on a stainless steel (SS) electrode and characterized using electrochemical methods such as cyclic voltammetry (CV), cathodic polarization and Tafel slops. The HER was studied using as electrolytic cathodes unmodified AISI 304 stainless steel (SS), nickel coated stainless steel (SS/Ni), copper coated stainless steel (SS/Cu), and nickel (under layer) and copper (top layer) coated stainless steel (SS/Ni/Cu) in 5 M KOH solution. It was found that, the SS/Ni/Cu electrode presents good electrocatalytic activity and stability toward the HER, compared to the SS electrodes modified by single nickel oxide layer. This behavior seems be explained by the synergistic interaction of Ni and Cu with Fe present in the stainless steel.

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