scholarly journals Preparation of Ni nanoparticles by liquid-phase reduction to fabricate metal nanoparticle–polyimide composite films

RSC Advances ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 6438-6443
Author(s):  
Daiki Fujioka ◽  
Shingo Ikeda ◽  
Kensuke Akamatsu ◽  
Hidemi Nawafune ◽  
Kazuo Kojima
Keyword(s):  
Liquid Phase ◽  
Preparation Method ◽  
Composite Films ◽  
Metal Nanoparticle ◽  
Ni Nanoparticles ◽  
Nickel Nanoparticle ◽  
Phase Reduction ◽  
Potassium Borohydride

Nickel-nanoparticle-containing polyimide composite films were prepared by liquid-phase reduction of Ni2+ ions with potassium borohydride (KBH4). This preparation method could be repeated to increase the number of the nanoparticles in the films.

Feasibility of improving the quality of dirty manganese ores in furnaces used for the liquid-phase reduction of iron

Metallurgist ◽  
1999 ◽  
Vol 43 (11) ◽  
pp. 473-477
Author(s):  
E. F. Vegman ◽  
S. E. Lazutkin ◽  
S. S. Lazutkin
Keyword(s):  
Liquid Phase ◽  
Manganese Ores ◽  
Phase Reduction ◽  
Reduction Of Iron

Preparation of nickel–silver core–shell nanoparticles by liquid-phase reduction for use in conductive paste

2015 ◽  
Vol 10 (17) ◽  
pp. 1347-1356 ◽  
Author(s):  
Jun Jie Jing ◽  
Jimin Xie ◽  
Gao Yuan Chen ◽  
Wen Hua Li ◽  
Ming Mei Zhang
Keyword(s):  
Liquid Phase ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Nickel Silver ◽  
Phase Reduction ◽  
Core Shell Nanoparticles ◽  
Silver Core

Micromorphology and Characterization of V2O3 Nanoparticles Produced by the Liquid Phase Reduction-Heat Treatment

2019 ◽  
Vol 944 ◽  
pp. 650-656
Author(s):  
Ming Rui Zhang ◽  
Yuan Qin ◽  
Dao Zhang ◽  
Guang Yuan Wang ◽  
Sen Yang
Keyword(s):  
Heat Treatment ◽  
Phase Composition ◽  
Liquid Phase ◽  
Thermal Treatment ◽  
Oxalic Acid ◽  
Structure And Morphology ◽  
Phase Reduction ◽  
Novel Method ◽  
Composition Structure

The liquid phase reduction-heat treatment has been used to prepare V2O3nanoparticles in this paper. It is a novel method that the precursor was developed by Oxalic acid dehydrate (H2C2O4·2H2O) reduction of V2O5powder in anhydrous ethanol. V2O3nanoparticles were successfully obtained by thermal treatment of the precursor. The phase, composition, structure, and morphology of the as-obtained samples were verified by XRD, XPS, SEM and TEM measurements. Meanwhile, the possible formation mechanism of V2O3in the heat-treatment is briefly discussed by analyzing the DSC.

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.

scholarly journals Facile Mechanochemical Synthesis of Nickel/Graphene Oxide Nanocomposites with Unique and Tunable Morphology: Applications in Heterogeneous Catalysis and Supercapacitors

Catalysts ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 486 ◽  
Author(s):  
Mayakrishnan Gopiraman ◽  
Somasundaram Saravanamoorthy ◽  
Dian Deng ◽  
Andivelu Ilangovan ◽  
Ick Soo Kim ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Catalytic Activity ◽  
Specific Capacitance ◽  
Preparation Method ◽  
High Rate ◽  
Ni Nanoparticles ◽  
Graphene Nanocomposites ◽  
Factual Content ◽  
Tunable Morphology ◽  
Defective Sites

In this study, a very simple and highly effective mechanochemical preparation method was developed for the preparation of Ni nanoparticles supported graphene oxide (GO) nanocomposites (Ni/GO, where Ni is a composition of Ni(OH)2, NiOOH, NiO, Ni2O3 and NiO2), 3 wt% NiO/GO (Ni/GO-1) and 8 wt% NiO/GO(Ni/GO-2). The developed method is not only very simple and efficient, but also, the morphology of Ni/GO nanocomposites can be tuned by simply varying the metal loading. Morphology and specific surface area of the resultant Ni/GO nanocomposites were investigated by mean of AFM, HR-TEM and BET. Chemical sate and factual content of Ni in Ni/GO-1 and Ni/GO-2, and the presence of defective sites in Ni-nanocomposites were investigated in detail. To our delight, the prepared Ni/GO-2 demonstrated superior catalytic activity toward the reduction of 2- and 4-nitrophenol in water with high rate constant (kapp) of 35.4 × 10−3 s−1. To the best of our knowledge, this is the best efficient Ni-based graphene nanocomposites for the reduction of 2- and 4-NP reported to date. The Ni/GO-1 and Ni/GO-2 demonstrated an excellent reusability; no loss in its catalytic activity was noticed, even after 10th cycle. Surprisingly the Ni/GO-2 as electrode material exhibited an excellent specific capacitance of 461 F/g in 6 M KOH at a scan rate of 5 mV. Moreover, the Ni/GO nanocomposites were found to possess poor electrical resistance and high stability (no significant change in the specific capacitance even after 1000 cycles).

A cuboidal [Ni4O4] cluster as a precursor for recyclable, carbon-supported nickel nanoparticle reduction catalysts

2017 ◽  
Vol 46 (22) ◽  
pp. 7154-7158 ◽  
Author(s):  
Yan-Qiu Yuan ◽  
Feng-Ling Yuan ◽  
Fei-Long Li ◽  
Zhi-Min Hao ◽  
Jun Guo ◽  
...  
Keyword(s):  
Catalytic Conversion ◽  
Ni Nanoparticles ◽  
Nickel Nanoparticle ◽  
Reduction Catalysts

A pyridine alkoxide ligated cuboidal [Ni4O4] cluster has been selected as the precursor to synthesize carbon-hosted Ni nanoparticles for catalytic conversion of 4-nitrophenol to 4-aminophenol.

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