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Research Data from Xuchang University Update Understanding of Applied Surface Science

February 7, 2014

By a News Reporter-Staff News Editor at Science Letter -- Investigators discuss new findings in Science. According to news originating from Xuchang, People's Republic of China, by NewsRx correspondents, research stated, "A simple two-step solution immersion process was combined with surface-modification by stearic acid to prepare superhydrophobic coatings on copper substrates so as to reduce friction coefficient, increase wear resistance and improve the anticorrosion ability of copper. Briefly, cuprous oxide (Cu2O) crystal coating with uniform and compact tetrahedron structure was firstly created by immersing copper substrate in 2 mol L-1 NaOH solution."

Our news journalists obtained a quote from the research from Xuchang University, "As-obtained Cu2O coating was then immersed in 0.33 mmol L-1 AgNO3 solution to incorporate silver nanoparticles, followed by modification with stearic acid (denoted as SA) coating to achieve hydrophobicity. The surface morphology and chemical composition of silver-cuprous oxide/stearic acid (denoted as Ag-(CuO)-O-2/SA) composite coating were investigated using a scanning electron microscope and an X-ray photoelectron spectroscope (XPS); and its phase structure was examined with an X-ray diffractometer (XRD). Moreover, the contact angle of water on as-prepared Ag-(CuO)-O-2/SA composite coating was measured, and its friction-reducing and anticorrosion abilities were evaluated."

According to the news editors, the research concluded: "It was found that as-prepared Ag-(CuO)-O-2/SA composite coating has a water contact angle of as high as 152.4 degrees and can provide effective friction-reducing, wear protection and anticorrosion protection for copper substrate, showing great potential for surface-modification of copper."

For more information on this research see: Preparation of silver-cuprous oxide/stearic acid composite coating with superhydrophobicity on copper substrate and evaluation of its friction-reducing and anticorrosion abilities. Applied Surface Science, 2014;289():21-26. Applied Surface Science can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier -; Applied Surface Science -

The news correspondents report that additional information may be obtained from P.P. Li, Xuchang Univ, Coll Chem & Chem Engn, Xuchang 461000, People's Republic of China. Additional authors for this research include X.H. Chen, G.B. Yang, L.G. Yu and P.Y. Zhang (see also Science).

Keywords for this news article include: Asia, Xuchang, Science, People's Republic of China

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Source: Science Letter

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