Alkaline Electrolyte and Fe Impurity Effects on the Performance and Active-Phase Structure of NiOOH Thin Films for OER Catalysis Applications

2015 ◽  
Vol 119 (21) ◽  
pp. 11475-11481 ◽  
Author(s):  
John D. Michael ◽  
Ethan L. Demeter ◽  
Steven M. Illes ◽  
Qingqi Fan ◽  
Jacob R. Boes ◽  
...  
Keyword(s):  
Thin Films ◽  
Phase Structure ◽  
Active Phase ◽  
Alkaline Electrolyte ◽  
Impurity Effects ◽  
Fe Impurity

Preparation and Properties of Niobate Thin Films from Nanosheets

2010 ◽  
Vol 177 ◽  
pp. 201-203
Author(s):  
Jing Chu ◽  
Yu Lin Li ◽  
Bing Xu ◽  
Na Zhang ◽  
Qiang Li
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Phase Structure ◽  
Niobium Oxide ◽  
Oxide Thin Films ◽  
Transmittance Spectra ◽  
Different Thickness ◽  
Soaking Temperature

Niobium oxide thin films were successfully synthesized starting from niobate nanosheets. The microstructure of as-prepared nanosheets was observed by TEM. The morphology of niobate thin films was investigated by SEM. The phase structure was determined by XRD. The transmittance spectra of as-obtained niobium oxide thin films were measured, and the optical properties were studied. The influences of different thickness on optical properties were also analyzed. As-prepared niobium thin films were treated by being heated at different temperature. The effects of soaking temperature on the structure and optical properties of niobium oxide thin films were discussed in detail.

scholarly journals Oxygen Reduction Reaction Electrocatalysis in Alkaline Electrolyte on Glassy-Carbon-Supported Nanostructured Pr6O11 Thin-Films

Catalysts ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 461 ◽  
Author(s):  
Rakesh Sharma ◽  
Verónica Müller ◽  
Marian Chatenet ◽  
Elisabeth Djurado
Keyword(s):  
Thin Films ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Glassy Carbon ◽  
Spray Deposition ◽  
Reduction Reaction ◽  
Rotating Disk Electrode ◽  
Alkaline Electrolyte ◽  
Electrochemical Performances ◽  
Electrostatic Spray Deposition

In this work, hierarchical nanostructured Pr6O11 thin-films of brain-like morphology were successfully prepared by electrostatic spray deposition (ESD) on glassy-carbon substrates. These surfaces were used as working electrodes in the rotating disk electrode (RDE) setup and characterized in alkaline electrolyte (0.1 M NaOH at 25 ± 2 °C) for the hydrogen evolution reaction (HER), the oxygen evolution reaction (OER), and the oxygen reduction reaction (ORR) for their potential application in alkaline electrolyzers or in alkaline fuel cells. The electrochemical performances of these electrodes were investigated as a function of their crystallized state (amorphous versus crystalline). Although none of the materials display spectacular HER and OER activity, the results show interesting performances of the crystallized sample towards the ORR with regards to this class of non-Pt group metal (non-PGM) electrocatalysts, the activity being, however, still far from a benchmark Pt/C electrocatalyst.

Synthesis and Characterizations of Strontium Substituted Hydroxyapatite Thin Films

2010 ◽  
Vol 93-94 ◽  
pp. 231-234
Author(s):  
B. Hongthong ◽  
Satreerat K. Hodak ◽  
Sukkaneste Tungasmita
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Chemical Composition ◽  
Spin Coating ◽  
Phase Structure ◽  
Sol Gel ◽  
Cross Linking ◽  
X Ray Diffraction ◽  
X Ray ◽  
Sol Gel Process

Strontium substituted hydroxyapatite(SrHAp) were fabricated both in the form of powder as reference and thin film by using inorganic precursor reaction. The sol-gel process has been used for the deposition of SrHAp layer on stainless steal 316L substrate by spin coating technique, after that the films were annealed in air at various temperatures. The chemical composition of SrHAp is represented (SrxCa1-x)5(PO4)3OH, where x is equal to 0, 0.5 and 1.0. Investigations of the phase structure of SrHAp were carried out by using X-ray diffraction technique (XRD). The results showed that strontium is incorporated into hydroxyapatite where its substitution for calcium increases in the lattice parameters, and Sr3(PO4)2 can be detected at 900°C. The SEM micrographs showed that SrHAp films exhibited porous structure before develop to a cross-linking structure.

Fe Impurity Effects on the Transport Properties in a-(La70Cu30)100−xFex*

1988 ◽  
Vol 157 (Part_2) ◽  
pp. 789-795
Author(s):  
L. Gonzo ◽  
G. Fritsch ◽  
E. Lüscher
Keyword(s):  
Transport Properties ◽  
Impurity Effects ◽  
Fe Impurity

The effect of phase structure on the corrosion behavior of Al100-xMox alloy thin films

2019 ◽  
Vol 790 ◽  
pp. 563-571 ◽  
Author(s):  
Caixia Wang ◽  
Tao Wang ◽  
Linlin Cao ◽  
Guojun Zhang
Keyword(s):  
Thin Films ◽  
Corrosion Behavior ◽  
Phase Structure

Phase structure and magnetic properties of the annealed Mn-rich Ni–Mn–Ga ferromagnetic shape memory thin films

2015 ◽  
Vol 61 ◽  
pp. 95-100 ◽  
Author(s):  
S. Vinodh Kumar ◽  
R.K. Singh ◽  
S. Seenithurai ◽  
S. Bysakh ◽  
M. Manivel Raja ◽  
...  
Keyword(s):  
Thin Films ◽  
Magnetic Properties ◽  
Shape Memory ◽  
Phase Structure ◽  
Ferromagnetic Shape Memory

Structure and Dielectric Properties of Zn Doped PST Thin Films Prepared by Sol-Gel Method

2007 ◽  
Vol 336-338 ◽  
pp. 283-286 ◽  
Author(s):  
Zan Zheng ◽  
Xiao Ting Li ◽  
Gao Rong Han ◽  
Wen Jian Weng ◽  
Pi Yi Du
Keyword(s):  
Thin Films ◽  
Dielectric Properties ◽  
Phase Structure ◽  
Perovskite Phase ◽  
Sol Gel ◽  
Dip Coating ◽  
In Doping ◽  
Ito Glass ◽  
Coating Method ◽  
Dip Coating Method

(PbySr1-y)ZnxTi1-xO3-x thin films were prepared on ITO/glass substrate by sol–gel process using dip-coating method. The phase structure, morphology, and dielectric properties of thin films were investigated by XRD, SEM and impedance analyzer, respectively. The perovskite phase structure was exhibited in the Zn-doped PST thin films. The formation ability of the thin films of the perovskite phase and its grain size decreased with the increase in doping Zn. The dielectric constant of the thin film was influenced by oxygen vacancies which could be controlled by Zn doping.

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