The Experts below are selected from a list of 1633437 Experts worldwide ranked by ideXlab platform
Pengyu Gao - One of the best experts on this subject based on the ideXlab platform.
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TiO2-SnO2/SO42− mesoporous solid superacid decorated Nickel-Based Material as efficient electrocatalysts for methanol oxidation reaction
Electrochimica Acta, 2019Co-Authors: Pengyu GaoAbstract:Abstract A Nickel-Based Material, Ni(II)-TiO 2 -SnO 2 /SO 4 2− , was synthesized by the sol-gel and thermal decomposition methods. The structures of the catalysts were characterized by field emission scanning electron microscope (FE-SEM), transmission electron microscope (TEM), X-ray diffraction (XRD), thermogravimetric analysis (TG), Brunauer-Emmett-Teller (BET), fourier transform infrared spectroscopy (FT-IR), and infrared spectroscopy of adsorbed pyridine (Py-IR). The electrochemical performance was investigated by cyclic voltammetry (CV) and chronoamperometry (CA). The electrochemical results showed that TiO 2 -SnO 2 -3%/SO 4 2− mesoporous solid superacid could significantly improve the electrocatalytic properties of Nickel-Based catalysts for methanol oxidation. In addition, the electrochemical results demonstrated that Ni(II)-TiO 2 -SnO 2 -3%/SO 4 2− catalyst exhibited certain stability for methanol electrooxidation, which renders the as synthesized Material a potential electrocatalyst for methanol oxidation reaction (MOR).
Wang Jian-lin - One of the best experts on this subject based on the ideXlab platform.
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Study on the Controlled Standard Sample of Nickel-Based Material with Spark Spectrum
Power Station Auxiliary Equipment, 2011Co-Authors: Wang Jian-linAbstract:Manual chemical analysis way is always adopted in analyzing the nickel based Material.Different from the generic iron dissolve sample method,the whole process is time-consuming.Spectrometer cannot be used in analysis on the Nickel-Based sample because of no standard sample.The successful development of standard sample has made a solid foundation for determining Nickel-Based Material with spectroscopic instruments which has filled the domestic blank in this field.
A. I. Gorunov - One of the best experts on this subject based on the ideXlab platform.
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Fabrication of coatings and bulk products made of a Nickel-Based Material by additive technology laser metal deposition
Russian Metallurgy (Metally), 2016Co-Authors: A. I. GorunovAbstract:It is shown that products made of a Nickel-Based Material can be formed by direct additive laser deposition. Ring samples with good antifriction properties are formed. The Material after direct laser deposition is characterized by a heterogeneous structure: coarse inclusions with a high hardness are distributed in a softer matrix. Final laser treatment leads to the formation of a homogeneous microstructure and the refinement of second phases.
Pavel A. Troshin - One of the best experts on this subject based on the ideXlab platform.
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Nickel(II) and Copper(II) Coordination Polymers Derived from 1,2,4,5-Tetraaminobenzene for Lithium-Ion Batteries
Chemistry of Materials, 2019Co-Authors: Roman R. Kapaev, Selina Olthof, Ivan S. Zhidkov, Ernst Z. Kurmaev, Keith J. Stevenson, Klaus Meerholz, Pavel A. TroshinAbstract:Highly conductive electrochemically active Materials are required for developing a new generation of ultrafast lithium-ion batteries (LIBs). Recently, a novel family of transition metal coordination polymers derived from arylamines exhibited conductivities of over 1 S cm–1. Low molecular weight analogues of these Materials show rich and reversible electrochemical behavior. However, there are just very few reports on the application of such Materials in LIBs. In this paper, linear nickel(II) and copper(II) coordination polymers derived from 1,2,4,5-tetraaminobenzene are reported and investigated as anode and cathode Materials for LIBs. In the anode mode, both Materials show ultrafast cycling behavior with impressive stability. Particularly, for the Nickel-Based Material, a specific capacity of 83 mA h g–1 is reached at 20 A g–1 current density, and 79% of this capacity is retained after 20 000 cycles. Moreover, the copper-based polymer used as a cathode component shows a specific capacity of up to 262 mA h...
Cecilio Alvarez-toledano - One of the best experts on this subject based on the ideXlab platform.
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Electrical and optical properties of copper and nickel molecular Materials with tetrabenzo [b,f,j,n] [1,5,9,13] tetraazacyclohexadecine thin films grown by the vacuum thermal evaporation technique.
Spectrochimica acta. Part A Molecular and biomolecular spectroscopy, 2009Co-Authors: A. Rodriguez, M.e. Sánchez-vergara, Verónica García-montalvo, A. Ortiz-rebollo, Jose Ramón Álvarez-bada, Cecilio Alvarez-toledanoAbstract:Abstract Semiconducting molecular-Material thin-films of tetrabenzo (b,f,j,n) {1,5,9,13} tetraazacyclohexadecine copper(II) and nickel(II) bisanthraflavates have been prepared by using vacuum thermal evaporation on Corning glass substrates and crystalline silicon wafers. The films thus obtained were characterized by infrared spectroscopy (FTIR), atomic force microscopy (AFM), ultraviolet–visible (UV–vis) spectroscopy and ellipsometry. IR spectroscopy showed that the molecular-Material thin-films exhibit the same intra-molecular bonds as the original compounds, which suggests that the thermal evaporation process does not significantly alter their bonds. The optical band-gap values calculated from the absorption coefficient may be related to non-direct electronic interband transitions. The effect of temperature on conductivity was also measured in these samples. It was found that the temperature-dependent electric current is always higher for the Nickel-Based Material and suggests a semiconductor-like behavior with conductivities in the order of 10−8 Ω−1 cm−1.