Reduction of Copper Oxide Film to Elemental Copper

2005 ◽  
Vol 152 (2) ◽  
pp. G122 ◽  
Author(s):  
P. J. Soininen ◽  
K.-E. Elers ◽  
V. Saanila ◽  
S. Kaipio ◽  
T. Sajavaara ◽  
...  
Keyword(s):  
Oxide Film ◽  
Copper Oxide ◽  
Elemental Copper

scholarly journals The cause of the colours shown during the oxidation of metallic copper

1927 ◽  
Vol 115 (772) ◽  
pp. 570-588 ◽  
Keyword(s):  
Thin Films ◽  
Oxide Film ◽  
Copper Oxide ◽  
Cupric Oxide ◽  
Metallic Copper ◽  
Oxide Films ◽  
Copper Surface ◽  
Considerable Time ◽  
Pass Through

During the initial stages of the oxidation of a clean metallic copper surface, and before the normal black colour of cupric oxide is finally attained, bright colours appear which pass through the first and second orders of the series of colours observed and tabulated by Newton as characteristic of thin films of air of increasing thickness. These facts have been known for a considerable time, but though the interference colours of thin films of air and those of the oxide film are produced in the same order, grave doubts have existed as to whether interference was the cause of the colours shown by the copper. This problem has been approached from measurements of the intensity of the light reflected from copper oxide films of known thickness, and the results show that interference is actually the cause of the production of the colour, though the result is complicated by the opacity of the film, the dispersion of the oxide, and the scattering of the light complementary to the film colour when the metal is burnished.

scholarly journals Fabrication of Copper Oxide Film by Electroless Process and Possibility for Sugar Analysis

1998 ◽  
Vol 66 (8) ◽  
pp. 854-855
Author(s):  
Hiroshi MATSUBARA ◽  
Tetsuya KONDO ◽  
Kazunori HODOUCHI ◽  
Akifumi YAMADA
Keyword(s):  
Oxide Film ◽  
Copper Oxide ◽  
Sugar Analysis ◽  
Electroless Process

scholarly journals Highly effective electrochemical water oxidation by copper oxide film generated in situ from Cu(II) tricine complex

2018 ◽  
Vol 39 (3) ◽  
pp. 479-486 ◽  
Author(s):  
Yan Gao ◽  
Hu Chen ◽  
Lu Ye ◽  
Zhongkai Lu ◽  
Yanan Yao ◽  
...  
Keyword(s):  
Oxide Film ◽  
Copper Oxide ◽  
Water Oxidation ◽  
Highly Effective

In situ investigation of M/CuO interface (M is Ti, V, Cr or Mn) by X-ray photoelectron spectroscopy

2015 ◽  
Vol 29 (04) ◽  
pp. 1530002 ◽  
Author(s):  
A. R. Chourasia ◽  
Jacob Stahl
Keyword(s):  
Metal Oxide ◽  
Copper Oxide ◽  
Photoelectron Spectroscopy ◽  
Room Temperature ◽  
Chemical Reactivity ◽  
Spectral Features ◽  
Metallic Oxide ◽  
X Ray ◽  
Elemental Copper

The technique of X-ray photoelectron spectroscopy has been used to investigate the chemical reactivity at the metal/ CuO interfaces. Thin films of the metallic overlayer (0.5 nm, 1.0 nm and 2.0 nm thickness) were deposited on copper oxide substrates at room temperature. In situ characterization of the interfaces has been performed. The 2p core level regions of the metals have been investigated. The spectral features show considerable reactivity at the interfaces. The core level peaks of the metal are observed to be shifted to the high BE energy side with the appearance of satellites. The spectral data confirm the formation of the metallic oxide at the interface. The satellite structure in the copper region is observed to disappear and the spectral features are found to approach those of elemental copper. The room temperature deposition of the metal on copper oxide therefore results in the reduction of copper oxide to elemental copper followed by the oxidation of the metal. The interface is found to consist of a mixture of metal oxide and elemental copper. The 2.0 nm samples were annealed. These samples show the diffusion of copper oxide through the overlayer. The metal reacts with this diffusing oxide to form metallic oxide. The interface is found to consist of a mixture of unreacted metal, the metal oxide, and elemental copper. The amount of the unreacted metal varied between 0% and 40% and can be controlled by the processing conditions. The investigation shows room temperature chemical reactivity at the metal/ CuO interface and provides a new method of preparing sub-nano-oxide films.

Copper oxide film formation at a sliding carbon-copper interface

Wear ◽  
1961 ◽  
Vol 4 (2) ◽  
pp. 137-149 ◽  
Author(s):  
W.J Spry ◽  
P.M Scherer
Keyword(s):  
Oxide Film ◽  
Copper Oxide ◽  
Film Formation

scholarly journals Control of Neonectria ditissima with copper based products in New Zealand

2015 ◽  
Vol 68 ◽  
pp. 241-249 ◽  
Author(s):  
M. Walter ◽  
O.D. Stevenson ◽  
N.T. Amponsah ◽  
R.W.A. Scheper ◽  
D.G. Rainham ◽  
...  
Keyword(s):  
New Zealand ◽  
Copper Oxide ◽  
Disease Control ◽  
Copper Oxychloride ◽  
Copper Hydroxide ◽  
Leaf Scar ◽  
Efficacy Trials ◽  
Fungicide Efficacy ◽  
Elemental Copper ◽  
Successful Control

New Zealand pipfruit crops require postharvest fungicides for control of European canker caused by Neonectria ditissima Fungicide efficacy trials to protect leaf scars from N ditissima infections were conducted during autumn 2013 and 2014 Disease control of artificially inoculated leaf scars was achieved by single applications of copper oxychloride and copper oxide but not copper hydroxide applied at 43 11 and 06 kg elemental copper/ ha respectively Control of leaf scar infections by copper oxide (065 and 095 kg elemental copper/ha) was similar to control by captan Leaf scars (010 days old) remained susceptible to infections up to 10 days after leaf fall; disease control was achieved by redistribution of copper and captan fungicides onto new leaf scars Disease control using copper oxide was consistent and similar to control using captan The copper product and concentration of elemental copper are important for successful control of leaf scar infections by N ditissima

Ignition of Organic Explosive Materials by a Copper Oxide Film Absorbing a Laser Pulse

2018 ◽  
Vol 43 (10) ◽  
pp. 992-998 ◽  
Author(s):  
Vadim Dolgachev ◽  
Alexander Khaneft ◽  
Anatoly Mitrofanov
Keyword(s):  
Laser Pulse ◽  
Oxide Film ◽  
Copper Oxide ◽  
Explosive Materials

Resistive switching and ferromagnetism modulation in copper oxide film on Nb:SrTiO3 substrate

2018 ◽  
Vol 465 ◽  
pp. 295-299 ◽  
Author(s):  
Jihao Xie ◽  
Shaoqing Ren ◽  
Jianpei Bu ◽  
Bin Cheng ◽  
Weikang Liu ◽  
...  
Keyword(s):  
Oxide Film ◽  
Copper Oxide ◽  
Resistive Switching
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