Highly active and noble-metal-alternative hydrogenation catalysts prepared by dealloying Ni–Si intermetallic compounds

Abstract

Small Ni clusters embedded in a SiO2 matrix: remarkably active reaction sites for hydrogenation.

Bimetallic nanocatalysts supported on graphitic carbon nitride for sustainable energy development: the shape-structure–activity relation

“…In some of these processes, noble and transition metal-based catalysts are used, e.g., Pt, Pd or Ni, due to their high inherent reactivity. These transition metals have been attracting considerable attention regarding to their enhanced activity, stability and/or selectivity in various reactions such as reforming, [7][8][9] decomposition, 10 partial oxidation, [11][12][13][14][15][16][17] hydrogenation, 18,19 etc. Unfortunately, despite their promising physical properties, their activity and selectivity for processes still require further understanding.…”

Investigation to Synthesis and Electrochemistry of the Ternary Si-CuO-NiO System as Anode Materials in Lithium-ion Batteries via an Affordable Manufacturing High-Energy Ball-Milling Method

“…The Ni 2p spectra of Si-CuO-NiO composites can be seen in Figure S3(d). The peaks at around 853.1 eV and 870.5 eV were assigned to Ni 2p3/2 and Ni 2p1/2 from the Ni silicide [27,28]. To our surprise, it can be always found the peaks corresponding to metal oxides in Cu 2p spectra and Ni 2p spectra.…”

An Investigation of Synthesis, Electrochemistry and Thermal Stability of Ball-milled Si-based Alloy Anodes in Lithium-ion Batteries

“…It is supported by the XPS fitting data that the SiO2 content follows a monotonical increase with the amount of the metal oxides. This correlation implies that a part of the SiO2 formation on the particle surface may partly be contributed by the reactions between Si and CuO/NiO, especially since the Ar condition is maintained during the milling process [36,37], respectively. We find the XPS binding energies of these two peaks are closer to the ones of Ni31Si12 or Ni2Si instead of NiSi2, in which the peaks of Ni 2p3/2 and Ni 2p1/2 are around 854.6 eV and 871.8 eV [36,37],…”