scholarly journals In-situ monitoring of hydrogen absorption into Ni thin film electrodes during alkaline water electrolysis

2019 ◽  
Vol 322 ◽  
pp. 134752 ◽  
Author(s):  
Joris Proost ◽  
Adeline Delvaux
Keyword(s):  
Thin Film ◽  
Hydrogen Absorption ◽  
Water Electrolysis ◽  
In Situ Monitoring ◽  
Alkaline Water Electrolysis ◽  
Alkaline Water ◽  
Thin Film Electrodes

Characterization of the Ni–Mo catalyst formed in situ during hydrogen generation from alkaline water electrolysis

2011 ◽  
Vol 36 (18) ◽  
pp. 11588-11595 ◽  
Author(s):  
Gvozden S. Tasic ◽  
Sladjana P. Maslovara ◽  
Dragana L. Zugic ◽  
Aleksandar D. Maksic ◽  
Milica P. Marceta Kaninski
Keyword(s):  
Hydrogen Generation ◽  
Water Electrolysis ◽  
Alkaline Water Electrolysis ◽  
Alkaline Water ◽  
Mo Catalyst

scholarly journals Active IrO2 and NiO Thin Films Prepared by Atomic Layer Deposition for Oxygen Evolution Reaction

Catalysts ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 92 ◽  
Author(s):  
DJ Donn Matienzo ◽  
Daniel Settipani ◽  
Emanuele Instuli ◽  
Tanja Kallio
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Atomic Layer Deposition ◽  
Chemical Vapor ◽  
Water Electrolysis ◽  
Atomic Layer ◽  
Alkaline Water Electrolysis ◽  
Catalytic Systems ◽  
Alkaline Water ◽  
Layer Deposition

Atomic layer deposition (ALD) is a special type of chemical vapor deposition (CVD) technique that can grow uniformed thin films on a substrate through alternate self-limiting surface reactions. Recently, the application of these thin film materials to catalytic systems has begun to attract much attention, and the capacity to deposit these catalytic films in a highly controlled manner continues to gain importance. In this study, IrO2 and NiO thin films (approximately 25 to 60 nm) were deposited on industrial Ni expanded mesh as an anode for alkaline water electrolysis. Different ALD operating parameters such as the total number of deposition cycles, sublimation and deposition temperatures, and precursors pulse and purge lengths were varied to determine their effects on the structure and the electrochemical performance of the thin film materials. Results from the electrochemical tests (6 M KOH, 80 °C, up to 10 kA/m2) showed the catalytic activity of the samples. Oxygen overpotential values (ηO2) were 20 to 60 mV lower than the bare Ni expanded mesh. In summary, the study has demonstrated the feasibility of using the ALD technique to deposit uniformed and electroactive thin films on industrial metallic substrates as anodes for alkaline water electrolysis.

Phase transformation of the brownmillerite SrCoO2.5 thin film through alkaline water electrolysis

2014 ◽  
Vol 64 (12) ◽  
pp. 1845-1848 ◽  
Author(s):  
Octolia Togibasa Tambunan ◽  
Min Young Lee ◽  
Deok Hyeon Kim ◽  
Kadek Juliana Parwanta ◽  
Chang Uk Jung
Keyword(s):  
Thin Film ◽  
Phase Transformation ◽  
Water Electrolysis ◽  
Alkaline Water Electrolysis ◽  
Alkaline Water
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