Nickel-based activated carbon was prepared from coconut shell activated carbon by electroless plating with palladium-free activation. The materials were characterized by scanning electron microscopy (SEM), X-ray energy dispersion spectroscopy (EDS), vibrating sample magnetometry (VSM), and vector network analyzer, respectively. The results show that the surface of the activated carbon was cover...

We report the discovery of a highly active Ni-Co alloy electrocatalyst for the oxidation of hydrazine (N(2)H(4)) and provide evidence for competing electrochemical (faradaic) and chemical (nonfaradaic) reaction pathways. The electrochemical conversion of hydrazine on catalytic surfaces in fuel cells is of great scientific and technological interest, because it offers multiple redox states, comp...

Abstract Low temperature joining is desirable for aluminum-ceramics because aluminum has a large coefficient of thermal expansion. In the present work, Al2O3 to Al was performed at room by two-step deposition method including Ni electroless and Cu electrodeposition. The strength increased, fracture mode changed from Ni/Al2O3 interface that in substrate using porous or etching dense surface. Thu...

In this paper, the authors present an experimental study of roughness characteristics of electroless Ni-B coatings and optimization of the coating process parameters based on L27 Taguchi orthogonal design. Three coating process parameters are considered viz. bath temperature, reducing agent concentration, and nickel source concentration. It is observed that concentration of reducing agent toget...

The addition of magnesium to Aluminum alloys has become increasingly popular due their lightweight, high strength, and corrosion resistance properties. Our research on high-content Mg doped 90, Al-10 wt% alloy shown that coating it with electroless Ni-P codepositing nano-Al2O3 (0, 2.5, 5 7.5 wt%) can significantly improve its mechanical properties, wear & tear, even resistance. Ni-P-5 Al2O3...

This study focuses on the preparation of Ni-plated polystyrene (PS) microspheres (diameter 3.7–4.5 μm). These Ni-plated PS microspheres have core–shell structures that were designed and prepared using an organic polymer core (PS with 3-(trimethoxysilyl) propyl methacrylate (TSPM)) and an inorganic metal (Ni) plated shell. The polymer microspheres were synthesized by dispersion copolymerization,...