Journal ArticleDOI
The Role of Cu(I) in the Process of Forming Cu2–xS Coatings by a Chemical Route
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In this article, the interaction of the Cu 2 O adsorbed with Na 2 S n (n = 1-4 ) during the formation of Cu 2-x S coatings has been investigated by cyclic voltammetry.Abstract:
The interaction of the Cu 2 O adsorbed with Na 2 S n (n = 1-4 ), during formation of the Cu 2-x S coatings has been investigated by cyclic voltammetry. The summarized reaction of this process has been shown to correspond to the equation: Na 2 S + Cu 2 O ad + H 2 O → Cu 2 S ad + (n-1)S 0 + 2NaOH, where S 0 /Cu=(n 1)/2. Such a stoichiometry of reaction ca be explained by the formation of an intermediate the adsorbed polysulphide of Cu(1) and by its subsequent decomposition into Cu 2 S and S 0 . When a thicker coating is being formed, i.e., when the surface being coated is repeatedly immersed into an ammoniate solution of Cu (1) and S 0 fully bounded: S 0 ad + 2Cu + → CuS + Cu 2 + . At the same time due to different solubility products (L=2.5-10 and 6.3-10 for Cu 2 S and CuS respectively), an exchange CuS ad + 2 (1-x)Cy + →Cu 2-x S ad +(1-x)Cu 2+ occurs. After formation of Cu 2+ . parallel processes characteristic for the interaction of Cu(II) with Na 2 S n start to take place, during which S is also formed.read more
Citations
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Electrodeposited CuS nanosheets on carbonized cotton fabric as flexible supercapacitor electrode for high energy storage
TL;DR: In this article, an electroconductive mesoporous carbonized clothes (Cc) was obtained by carbonizing the waste cotton fabrics and then the copper sulfide (CuS) was galvanostatic electrodeposited on Cc to prepare the binder-free g-CuS/Cc electrode.
Journal ArticleDOI
Some regularities of formation of Cu2-xS coatings
TL;DR: In this paper, the interaction of Cu 2 O + Cu(OH) 2 adsorbed with Na 2 S 4 was investigated using the methods of cyclic voltammetry and radiochemistry (35 S).
Journal ArticleDOI
Investigation of the Interaction Between Cu2-x S +So Coatings and Pd(II) Ions by Cyclic Voltammetry and X-ray Photoelectron Spectroscopy
TL;DR: In this article, the interaction between Pd 2+ ions and Cu 2-x S coating formed by three cycles and containing ∼30 at.% of elementary S has been investigated by the methods of cyclic voltammetry and photoelectron spectroscopy.
Journal ArticleDOI
A study of interaction of cobalt sulphide coatings with Cu(II) ions
TL;DR: In this article, it was shown that a cobalt sulphide coating formed by two cycles (one cycle includes the treatment of the surface with the solution of Co(II) ammoniate complex: hydrolysis of the adsorbed Co-II compounds; and sulphidation (in Na 2 S solution) of the products of the hydrolyse) contain ∼15% CoS, which in 0.1 M KClO 4 solution is reduced in the region of potentials of hydrogen evolution, and Co hydroxosulphide.
Journal ArticleDOI
Introduction of S-S bond to flexible supercapacitors for high mass specific capacity and stability
Shen-Gen Gong,Yan-Hong Shi,Yang Su,Fei Qi,Yingru Song,Guo-Duo Yang,Bing Li,Xing-Long Wu,Jingping Zhang,Cui Yan Tong +9 more
TL;DR: In this article , a pea-like hollow CuS nanoparticle structure is fabricated on the surface of carbon fiber with Cu plating, and a novel kind of flexible electrode named [email protected]@CuS-H is synthesized.
References
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Book
Gmelin handbook of inorganic chemistry
Ekkehard Fluck,Leopold Gmelin,R. J. Meyer,Erich Pietsch,Alfons Kotowski,Margot Becke‐Goehring,Marie-Louise Gerwien,Rudolf Warncke,Rainer Bohrer,Gottfried Olbrich,Helga Hartwig +10 more
TL;DR: The Gmelin Formula Index is updated by inclusion of the volumes which appeared up to the end of 1987, and all compounds described in the GMelin Handbook of Inorganic Chemistry in the period between 1924 and 1987 can be located.
Journal ArticleDOI
New Methods of Electroless Plating and Direct Electroplating of Plastics
TL;DR: A review of metal deposition on dielectric surfaces is presented in this article, where a comparatively high plating rate is obtained, hydrogen is not evolved in the metal deposition process, and it is possible to regenerate the reducing agent in the plating solution.
Journal ArticleDOI
[Cu3S18]3−, a novel sulfur rich complex with different kinds of puckered copper sulfur heterocycles, a central Cu3S3 and three outer CuS6 ones
Achim Müller,Uwe Schimanski +1 more
TL;DR: Preparation de [(C 2 H 5 ) 4 N] 3 [Cu 3 S 18 ] par reaction de Cu(CH 3 COO) 2 •2H 2 O avec une solution de polysulfure dans l'ethanol en presence de [C 2H 5 ]I. Etude RX de la structure