Heteroatom doping is an effective strategy to regulate electrocatalysts for the oxygen evolution reaction (OER). Nonmetal heteroatoms can effectively engineer geometric and electronic structures activating surface sites of catalysts due their unique radius electronegativity nonmetal atoms. Hence, structure activity atoms (X, X = B, C, N, O, P)-doped Ni3S2 (X-Ni3S2) were studied screen high-perf...

The size-dependent metal to nonmetal transition in metal nanoparticles has been investigated using photoelectron and tunneling spectroscopic techniques. Metal nanoparticles capped by thiols are shown to organize into ordered 2D and 3D structures. Single-walled nanotubes and aligned carbon nanotube bundles have been synthesized by controlling the size of metal nanoparticles produced in situ duri...

Recently, it has been argued that a strong electron-phonon interaction arising from the Jahn-Teller splitting of the outer Mn d level plays a crucial role in understanding the nonmetal-to-metal transition observed in the La12xAxMnO3 (A5Ca,Sr,Ba! system. We show, by neutron powder diffraction, that La0.65Ca0.35MnO3 exhibits an anomalous volume and oxygen/manganese displacement change around Tc ,...

We report the first experimental evidence for a metallic phase in fluid molecular oxygen. Our electrical conductivity measurements of fluid oxygen under dynamic quasi-isentropic compression show that a nonmetal-metal transition occurs at 3.4 fold compression, 4500 K, and 1.2 Mbar. We discuss the main features of the electrical conductivity dependence on density and temperature and give an inter...

There are few rerorts on delayed neurologic deficit after stab injury with a retained intraspinal foreign body and granuloma formation. This study reported a 24-year-old man presented with progressive neurologic deficits, an unusual case of delayed myelopathy with an intraspinal nonmetal foreign body granuloma, which was misdiagnosed as tuberculosis of neural arches before operation because the...