Non-lattice oxygenIn this work, the resistance switching characteristics of Al-doped HfO 2 thin films were investigated with by systematically varying the Al concentration and analyzing of the microstructure and the chemical bonding states. TiN/Al-doped HfO 2 /Pt metal-insulator-metal stacks were ...
Because of the strong oxygen scavenging capability of Ta, an oxygen vacancy (VO)-rich TaOx region containing a substantial number of nonlattice oxygen ions (O2−) exists near the Ta electrode (the blue region in Fig. 2a). For simplicity, negatively charged O2− is assumed to migrate ...
The plastic lanthanide alloys can be manufactured into blocks, plates, foils, rods, wires, and pipes by pressure processing. Because of the influence of lattice structure and impurity content of lanthanide metals, the mechanical properties of lanthanide metals and alloy materials are relatively low, ...
Fig. 1: Ligand-promoted oxygen evolution activity. aThej-Vcurves of pf-CoOOH and pc-CoOOH. “pc” and “pf” represent that the pristine CoOOH pre-catalysts were treated at 1.7 VRHEfor 10 h in phen-containing and phen-free 1.0 M NaOH electrolytes, respectively.bThe concentration of...
The method is based on measuring 19F nuclear magnetic resonance spin-lattice relaxation rate (R1 = 1/T1) of perfluorocarbon (PFC) emulsion discretely sequestered in a tumor. METHODS AND MATERIALS: We have examined pO2 in the Dunning prostate tumor R3327-AT1 implanted in a Copenhagen rat. Oxy...
there is no directional bonding between ions inside an ionic lattice. however, ionic lattic can exhibit directional bonding in a non-direct manner. such directional bonding arises throughintramolecular covalent bonds. Eg. there is directional bonding between Nitrogen and Oxygen in the NO3-ion. ...
an nitrogen-doped graphene rich catalysts derived from heteroatom polymers for oxygen reduction in nonaqueous lithiumo2 battery cathodes一种基于原子聚合物氮掺杂富石墨烯催化剂用于非水系锂电池正极中氧还原.pdf,A R T Nitrogen-Doped Graphene-Rich I Catalysts
Zhu Y, Zuo J M, Moodenbaugh A R, and Suenaga M (1994) Grain- boundary constraint and oxygen deficiency in YBaCuO: application of the coincidence site lattice model to a non-cubic system. Phil. Mag A 70: 969-984.Zhu Y, Zuo J M, Moodenbaugh A R and Suenaga M 1994 Grain-boundary...
the Cr- and Mn-substituted stoichiometries release/absorb 0.039 and 0.056 mol of lattice oxygen, confirming the reducibility of the Mn and consequent formation of additional oxygen vacancies upon reduction. However, the Cr3+in titanate lattice is less reducible that leads to similar oxygen absor...
It should be pointed out that since the corrosion of VO2 caused by oxygen atom moving out of lattice is much slower than the migrations of electrons or protons, the dynamics of this co-doping mechanism ensure the quick hydrogenation of VO2 surface before being corroded by acid, resulting in...