The catalytic performance of Ni2P/Al2O3 catalyst in comparison with Ni/Al2O3 catalyst in dehydrogenation of cyclohexane

An effective and stable Ni2P/TiO2 catalyst for the hydrogenation of dimethyl oxalate to methyl glycolate

“…The superior hydrogenation activity of Ni 2 P/TiO 2 catalyst possibly resulted from the physicochemical properties of Ni 2 P. XPS characterizations verified that the Ni atoms in Ni 2 P structure possess a small positive charge, which can promote the adsorption of Ni 2 P sites to C=O (the electron donor) in DMO and decrease the interaction between OH (the electron acceptor) in MG and Ni 2 P. Additionally, the P atoms in Ni 2 P catalyst might have the same effect as the additives in bimetallic catalyst, including Ru-Re or Ru-Sn, which is called ensemble-effect in catalysis [34].…”

N-octane catalytic isomerization with aluminium and aluminiumlanthanum pillared nontronite

“…Aluminium intercalated nontronite: previous to the intercalation procedure using the Keggin ion [AlO 4 Al 12 (OH) 24 (H 2 O) 12 ] 7+ , the clay was treated with NaOCl 0.1 mol.L -1 solution in order to oxidize the organic matter and NaCl 1.0 mol.L -1 solution to exchange cations in the interlayer space. Fig.…”

“…For the hydroisomerization reaction it is necessary the presence of a bi-functional catalyst, capable of hydrogenation-dehydrogenation, and alkene isomerization. The research for new catalyst materials is constant among scientists looking for new active sites for isomerization, normally metals in low oxidations state, supported in porous materials with proton exchange sites [3,4]. The desired catalyst characteristics are present in natural clay; however, pillared clay combined with active sites containing noble metals are even more active.…”

An Investigation of Ni2P Single Crystal Surfaces: Structure, Electronic State and Reactivity

“…The activity of Ni2P(0001) was comparable to that of commercial WGS 11 catalysts such as Cu, and Ni2P(0001) also exhibited high thermostability. The bonding 12 energies of the adsorption species are reduced on the oxygen covered Ni2P(0001) 13 surface. DFT study of HDO revealed that 3-fold hollow Ni and P sites are active for 14 adsorption of H and OH species [43].…”

“…[16][17][18][19][20][21] Despite these current insights, a thorough understanding of the high activity of Ni2P 8 at the atomic level requires us to investigate the structures and properties of Ni2P single 9 crystals. Many efforts have been made to date to elucidate the surface properties of Ni2P 10 single crystal surfaces, using X-ray photoelectron spectroscopy (XPS) [22,23], scanning 11 tunneling microscopy (STM) [24][25][26][27][28], low-energy electron diffraction (LEED) [24][25][26][27][28][29][30], 12 photoemission electron microscopy (PEEM) [25], photoelectron diffraction [31] and 13 photoemission spectroscopy (PES) [30,[32][33][34][35]. Theoretical calculations using density 14 functional theory (DFT) [11,14,15,[36][37][38] have also played an important role in 15 understanding the catalytic properties of the surface.…”