Results 111 to 120 of about 2,026,716 (308)

Research Progress on Microwave Synthesis of 3d Transition Metal (Mn, Fe, Co, and Ni) Oxide Nanomaterials for Supercapacitors

Molecules
3d transition metal oxides composed of Mn, Fe, Co, and Ni have emerged as promising candidates for supercapacitor electrode materials due to their high theoretical specific capacitance, abundant redox-active sites, variable oxidation states ...
Chengqi Sun, Maosheng Ge, Shuhuang Tan, Yichen Liu, Haowei Wang, Wenhao Jiang, Shoujun Zhang, Yin Sun   +7 more
doaj   +1 more source

Identifying the isolated transition metal ions/oxides in molecular sieves and on oxide supports by UV resonance Raman spectroscopy

, 2003
Isolated transition metal ions/oxides in molecular sieves and on surfaces are a class of active sites for selective oxidation of hydrocarbons. Identifying the active sites and their coordination structure is vital to understanding their essential role ...
Li, C
core   +1 more source

Microstructure Modification of Additively Manufactured Mo–9Si–8B by Annealing and Its Effects on High‐Temperature Mechanical Properties

Advanced Engineering Materials, EarlyView.
Postbuild annealing systematically modifies the phase fractions and morphology of EB‐PBF processed Mo–9Si–8B. Quantitative microstructure–property correlations reveal how controlled phase evolution enhances high‐temperature compressive strength and creep resistance.
Christopher Schmidt, Yong Chen, Georg Hasemann, Benjamin Wahlmann, Carolin Körner, Manja Krüger   +5 more
wiley   +1 more source

Metal oxides as photocatalysts

, 2018
Metal oxides are of great technological importance in environmental remediation and electronics because of their capability to generate charge carriers when stimulated with required amount of energy.
Mohammad Mansoob Khan (3722581)
core   +1 more source

Investigating the Effect of Inclination Angle and the Influence of Scan Parameters on the Appearance and Thermal and Mechanical Properties of Filigree Tension Rods of LPBF‐Manufactured NiTi Shape‐Memory Alloys

Advanced Engineering Materials, EarlyView.
This article investigates the dependence of the properties on the manufacturing orientation in the form of the inclination angle to the build plate of LPBF‐fabricated NiTi rods with a diameter of 150–220 µm. Metallographic, chemical, thermal, and mechanical characterization show behavior under identical manufacturing conditions that ranges from ...
Sandra Herzig, Michael Werner, Christian Rotsch   +2 more
wiley   +1 more source

One-step depolymerization of calcium lignosulfonate to produce phenolics with the action of solid base oxides

Materials Research Express
Lignin, as the world’s second-largest biomass resource, has a low utilization rate. Converting lignin into high-value chemicals can not only alleviate the shortage of fossil fuels but also reduce environmental pollution caused by indiscriminate ...
Haiying Wang, Yejing Wang, Wencheng Zhang, Hongjing Han, Yizhen Wang, Yanguang Chen, Yongjun Zhang, Yanan Zhang   +7 more
doaj   +1 more source

Morphology-dependent nanocatalysis on metal oxides

, 2011
Nnoastructured metal oxides are widely used in catalysis where their catalytic properties are closely associated with the size and morphology at nanometer level.
申文杰
core  

Fibering of oxides in refractory-metal matrices [PDF]

, 1967
Fibering of oxides in refractory metal ...
Weeton, J. W., Signorelli, R. A., Jech, R. W.   +2 more
core  

Mesoporous Crystals of Transition Metal Oxides

, 2008
Using mesoporous silicas as hard templates and facilitating crystal growth of transition metal oxides inside the pores, some mesoporous crystals can be produced after removing the templates.
Zhou, Wuzong
core   +3 more sources

Non‐Additive Criteria Assessment in Sustainability Evaluation of High Entropy Alloys: A Toxicity‐Weighted Framework

Advanced Engineering Materials, EarlyView.
Sustainability assessment requires methodologies that appropriately distinguish between additive and non‐additive material properties. A toxicity‐weighted scoring system is developed and applied that accounts for the disproportionate influence of highly toxic constituents through nonlinear weighting functions, providing more realistic estimates than ...
Seth Mehalic, Oladele A. Ogunseitan, Julie M. Schoenung   +2 more
wiley   +1 more source