Two sets of carbon supported catalysts with Pt:Co in the atomic ratio of 0.25:0.75 and 0.75:0.25 were prepared using a high-energy ball-milling technique. One of the Pt-Co electrocatalysts was subjected to lixiviation to examine the change in surface area.
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addition, high-energy ball milling can result in an effective doping with nanostructured carbon, which improves Bc2 by impurity scattering. On the other hand, it is becoming more and more difﬁcult to obtain commercially amorphous boron (B) powder and the availability of high purity amorphous B is also limited in the market [18,19].
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It involves the use of a high energy ball mill to initiate chemical reactions and structural changes. High energy ball milling: Mechanochemical processing of nanopowders reviews the latest techniques in mechanochemistry and how they can be applied to the synthesis and processing of various high …
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A nano-Si 3 N 4 /5 wt% nano-C composite was successfully fabricated for the first time via high-energy ball milling, followed by spark plasma sintering. The milling promoted the amorphization of the starting powders; most of the carbon particles were transformed into …
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In this study, Li 2 TiO 3 nanopowders were synthesized via a high-energy ball-milling process followed by calcinations and Li 2 TiO 3 ceramics were fabricated by solid-state reaction. The microstructure and microwave dielectric properties of Li 2 TiO 3 ceramics were also investigated systematically.