Feb 15, 2011 · Ni 2 P nanocrystals have been synthesized by a ligand stabilization method with adopting nickel acetylacetonate (Ni (acac) 2) as a nickel precursor and trioctylphosphine (TOP) as a phosphorous precursor in the presence of trioctylphosphine oxide …

Dec 1, 2021 · SiO 2 -supported Ni phosphide catalysts are highly active toward the non-oxidative coupling of methane (NOCM) reaction, and their catalytic activity is strongly dependent on their Ni:P ratio. We analyzed Ni phosphide catalysts using X-ray absorption fine structure (XAFS) to elucidate the structure-catalytic activity relationship.

The direct dehydrogenative conversion of methane (DCM) to higher hydrocarbons was investigated over silica-supported nickel phosphide catalysts (NixPy/SiO2) over 1023 K. NixPy/SiO2 catalysts...

Jan 1, 2005 · The local structure around Ni in a nickel phosphide catalyst supported on SiO 2 was investigated by an in situ x-ray absorption fine structure (XAFS) method during the reduction process of the catalyst and the hydrodesulfurization (HDS) reaction of thiophene.

The hydrodeoxygenation (HDO) of guaiacol was investigated over SiO2, ZrO2, and active carbon (AC) supported Ni2P catalysts. The physical properties of the catalysts were analyzed by temperature-programmed reduction (H2-TPR), CO-uptake chemisorption, and N2 physisorption.

Ni2P nanocrystals have been synthesized by a ligand stabilization method with adopting nickel acetylacetonate (Ni(acac)(2)) as a nickel precursor and trioctylphosphine (TOP) as a phosphorous precursor in the presence of trioctylphosphine oxide (TOPO) as a coordinating solvent.

Dec 1, 2021 · We analyzed Ni phosphide catalysts using X-ray absorption fine structure (XAFS) to elucidate the structure-catalytic activity relationship.

Ni K-edge extended X-ray absorption fine structure (EXAFS) spectra were collected in a transmission mode using a Si (111) monochromator double crystal at room temperature on BL9C beam line. EXAFS data from individual samples were Fourier transformed in the range from 3 to 14 Å-1 and data processing was performed using program WinXAS97.

Mar 1, 2014 · X-ray diffraction (XRD) and extended X-ray absorption fine structure (XAFS) spectroscopy were used to obtain structural properties for the supported Ni 2 P catalysts. Hydrodeoxygenation (HDO) tests were performed in a continuous flow fixed-bed reactor at 523–573 K, and 1 or 8 atm, and an LHSV of 2.0 h −1 .

SiO2-supported NiP binary catalysts show high activity for the non-oxidative coupling of methane (NOCM) reactions, one of the most difficult but important catalytic reactions. We have studied the...