A Ni/meso-MgO catalyst with high surface area and small Ni nanoparticles was synthesized and investigated for hydrogen production by steam reforming of phenol for the first time. Compared to conventional Ni/MgO, the Ni/meso-MgO catalyst showed higher catalytic activity and stability. X-ray Diffraction, N2 adsorption, hydrogen temperature programmed reduction, transmission electron microscopy an...

Graphene oxide was synthesized by using modified Hummers method and also Graphene-NiO nanocomposite prepared by hydrothermal method with the use of graphene oxide solution, Ni(NO3)2•6H2O and urea as raw materials. The synthesized nanocomposite was characterized by the XRD, Raman, SEM, TGA and energy dispersive spectrometer analysis. The results demonstrate that NiO nano particles uniformly cove...

This communication reports the reduction mechanism and kinetics of CoO-NiO/Al2O3 oxygen carrier using methane as the reduction gas. Kinetics experiments are performed in a novel fluidized bed CREC riser simulator under turbulent fluidized bed reaction conditions. A shrinking-core model is used for the kinetic modeling assuming spherical grains of the oxygen carrier particles. The XRD analysis s...

We report on a simple strategy for the direct synthesis of a thin film comprising interconnected NiO nanoparticles deposited on both sides of a graphene sheet via cathodic deposition. For the co-electrodeposition, graphene oxide (GO) is treated with water-soluble cationic poly(ethyleneimine) (PEI) which acts as a stabilizer and trapping agent to form complexes of GO and Ni2+. The positively cha...

Myanmar has a drier sub-tropical climate than countries that typically contain Ni laterite deposits, but hosts deposit at Tagaung Taung. Given enrichment processes in the Taung are poorly understood, we investigated geochemical and mineralogical evolution of two weathering profiles developed on different bedrocks central part Myanmar: partly serpentinized harzburgite an almost completely perido...

The O1 phase transition is suppressed by Ni migration to tetrahedral sites in NiO2.

Glucose electrochemical oxidation toward gluconic and glucaric acids over innovative NiO/Ni 3D foam, a mechanism investigation.

• Unveiling the role of carbonate in Ni-based core/shell plasmonic photocatalyst. Revealing amorphous NiCO 3 as an active side for H 2 reduction via DFT calculations. Enhancing photocatalytic activity by incorporation NiO a middle layer. Optimizing performance post-vacuum annealing thermal treatment. Though carbonates are known several decades, their sun-light driven photocatalysis is still hid...

Hole transfer dynamics of Atto647N sensitized p-type NiO nanoparticle (NP) thin films is investigated using both ensemble-averaged and single-molecule spectroscopy techniques. The rate of hole transfer is dependent on the processing conditions and is enhanced when the NiO is pre-annealed in air as compared to vacuum. This is possibly due to an upward shift of the valence band of the semiconduct...

A new NiO-based material Pb2Ni(PO4)2 was obtained by a conventional solid-state reaction in air. The crystal structure exhibits both corner- and edge-sharing {Ni-O-P} bonds in the system. Magnetic properties were investigated by means of magnetic susceptibility, magnetization, and heat capacity measurements. The results show a typical three-dimensional antiferromagnetic ordering below ~4 K and ...