322 Conditions of Heating Reduction in Fabrication of Nanotubes by Solid-Phase Reduction Method

2012 ◽  
Vol 2012.20 (0) ◽  
pp. _322-1_-_322-2_
Author(s):  
Kenji TAKAGI ◽  
Mikio MURAOKA
Keyword(s):  
Reduction Method ◽  
Solid Phase ◽  
Phase Reduction

scholarly journals Influence of Cu on the Improvement of Magnetic Properties and Structure of L10 FePt Nanoparticles

Nanomaterials ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1097
Author(s):  
Luran Zhang ◽  
Xinchen Du ◽  
Hongjie Lu ◽  
Dandan Gao ◽  
Huan Liu ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Annealing Temperature ◽  
Reduction Method ◽  
Solid Phase ◽  
Average Particle Size ◽  
Fept Nanoparticles ◽  
Average Particle ◽  
Phase Reduction ◽  
Different Temperatures ◽  
One Step

L10 ordered FePt and FePtCu nanoparticles (NPs) with a good dispersion were successfully fabricated by a simple, green, one-step solid-phase reduction method. Fe (acac)3, Pt (acac)2, and CuO as the precursors were dispersed in NaCl and annealed at different temperatures with an H2-containing atmosphere. As the annealing temperature increased, the chemical order parameter (S), average particle size (D), coercivity (Hc), and saturation magnetization (Ms) of FePt and FePtCu NPs increased and the size distribution range of the particles became wider. The ordered degree, D, Hc, and Ms of FePt NPs were greatly improved by adding 5% Cu. The highest S, D, Hc, and Ms were obtained when FePtCu NPs annealed at 750 °C, which were 0.91, 4.87 nm, 12,200 Oe, and 23.38 emu/g, respectively. The structure and magnetic properties of FePt and FePtCu NPs at different annealing temperatures were investigated and the formation mechanism of FePt and FePtCu NPs were discussed in detail.

scholarly journals A Study on the Mechanism and Kinetic of Nitrate Reduction by the nZVI-g-C3N4/TiO2  Composite Under the Simulated Sunlight

2021 ◽  
Author(s):  
Linyu Wei ◽  
Jing Tian ◽  
Qing Wang ◽  
Yuanyuan Liu ◽  
Yi Yu ◽  
...  
Keyword(s):  
Nitrate Reduction ◽  
Reduction Method ◽  
Nitrate Removal ◽  
Simulated Sunlight ◽  
Photoelectric Properties ◽  
Phase Reduction ◽  
Reduction Efficiency ◽  
Initial Ph ◽  
Lamp System

Abstract g-C3N4/TiO2 composite has excellent photoelectric properties and is considered as a good carrier of nanoparticles. A novel composite of nZVI-g-C3N4/TiO2 was successfully synthesized through in-situ growth nZVI on the surface of g-C3N4/TiO2 with liquid phase reduction method. The composite was characterized by TEM, XRD, EDS and evaluated its nitrate removal efficiency. The effects of composite dosage, solution initial pH and HCOOH concentration on nitrate reduction were investigated. The results showed that nitrate was rapidly reduced by nZVI-g-C3N4/TiO2 composite. The dosage of 4 g/L nZVI-g-C3N4/TiO2 composite and 3.0 mM of HCOOH concentration was more suitable for nitrate reduction. Solution initial pH had little impact on the nitrate reduction efficiency, but affected the proportion of the nitrate reduction products. The mechanism of nitrate reduction in the nZVI-gC3N4/TiO2/HCOOH-Xe-lamp system was proposed. The nZVI-gC3N4/TiO2 composite could be considered as a viable and promising technology for water pollution remediation.

scholarly journals Gram-scale synthesis of ultra-fine Cu2O for highly efficient ozone decomposition

RSC Advances ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 5212-5219 ◽  
Author(s):  
Shuyan Gong ◽  
Anqi Wang ◽  
Jilai Zhang ◽  
Jian Guan ◽  
Ning Han ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Room Temperature ◽  
Reduction Method ◽  
Ozone Decomposition ◽  
Highly Efficient ◽  
Phase Reduction

Dozens of grams of ultra-fine Cu2O with efficient ozone decomposition was prepared by a facile liquid phase reduction method at room temperature.

An Ni–P/C electro-catalyst with improved activity for the carbohydrazide oxidation reaction

RSC Advances ◽  
2016 ◽  
Vol 6 (94) ◽  
pp. 91956-91959 ◽  
Author(s):  
Xinyue Cao ◽  
Haining Wang ◽  
Shanfu Lu ◽  
Sian Chen ◽  
Yan Xiang
Keyword(s):  
Catalytic Activity ◽  
Liquid Phase ◽  
Oxidation Reaction ◽  
Reduction Method ◽  
Significant Enhancement ◽  
Phase Reduction ◽  
Electro Catalytic Activity

Ni–P/C NPs were prepared through a two-step liquid phase reduction method, which exhibited a significant enhancement for the electro-catalytic activity towards the carbohydrazide oxidation reaction compared with Ni/C NPs.

Sign in / Sign up

Export Citation Format

Share Document