Ultrafine bimetallic Pt–Ni nanoparticles immobilized on 3-dimensional N-doped graphene networks: a highly efficient catalyst for dehydrogenation of hydrous hydrazine

2019 ◽  
Vol 7 (1) ◽  
pp. 112-115 ◽  
Author(s):  
Amit Kumar ◽  
Xinchun Yang ◽  
Qiang Xu
Keyword(s):  
Catalytic Activity ◽  
Reduction Method ◽  
Chemical Reduction ◽  
High Catalytic Activity ◽  
Ni Nanoparticles ◽  
Chemical Reduction Method ◽  
Efficient Catalyst ◽  
3 Dimensional ◽  
Doped Graphene ◽  
Wet Chemical

Ultrafine and uniformly dispersed bimetallic Pt–Ni nanoparticles (NPs) have been immobilized on novel 3-dimensional N-doped graphene networks (NGNs) by a facile wet chemical reduction method, which exhibit extremely high catalytic activity for the dehydrogenation of hydrazine hydrate.

Facile synthesis of Pt–Pd nanodendrites and their superior electrocatalytic activity

2014 ◽  
Vol 2 (12) ◽  
pp. 4384-4390 ◽  
Author(s):  
Jing-Jing Lv ◽  
Jie-Ning Zheng ◽  
Shan-Shan Li ◽  
Li-Li Chen ◽  
Ai-Jun Wang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Ethylene Glycol ◽  
Electrocatalytic Activity ◽  
Reduction Method ◽  
Chemical Reduction ◽  
Alkaline Media ◽  
High Catalytic Activity ◽  
Chemical Reduction Method ◽  
Facile Synthesis ◽  
Electrooxidation Of Methanol

Porous Pt–Pd nanodendrites were fabricated by a co-chemical reduction method using both PVP and urea as the co-stabilizing and co-structure-directing agents. The Pt–Pd nanodendrites displayed high catalytic activity and stability toward the electrooxidation of methanol and ethylene glycol in alkaline media.

Synthesis of Ni Nanoparticles for Solar Selective Absorber by Chemical Reduction Method

2020 ◽  
Vol 23 ◽  
pp. 720-725 ◽  
Author(s):  
P. Srimara ◽  
T. Chevapruk ◽  
P. Kumnorkaew ◽  
T. Muangnapoh ◽  
P. Vas-Umnuay
Keyword(s):  
Reduction Method ◽  
Chemical Reduction ◽  
Ni Nanoparticles ◽  
Chemical Reduction Method

Oxidation of 1,2-Propanediol to Carboxylic Acid Over Hydroxyapatite Nanorod-Supported Metallic Cu0 Nanoparticles

2020 ◽  
Vol 20 (3) ◽  
pp. 1723-1731 ◽  
Author(s):  
Lang Qiu ◽  
Hengbo Yin ◽  
Aili Wang ◽  
Lingqin Shen ◽  
Wei Tao
Keyword(s):  
Catalytic Activity ◽  
Crystal Growth ◽  
Carboxylic Acid ◽  
Reaction Temperature ◽  
Reduction Method ◽  
Chemical Reduction ◽  
Chemical Reduction Method ◽  
Gaseous Oxygen ◽  
Nanoparticle Catalysts

Hydroxyapatite nanorod-supported metallic Cu0 nanoparticle catalysts (Cux/HAP) were prepared by the wetness chemical reduction method. The metallic Cu0 nanoparticles were well dispersed on the surfaces of the HAP nanorods. The alkaline HAP nanorods inhibited the crystal growth of the metallic Cu0 nanoparticles. The HAP nanorods also retarded the oxidation of the metallic Cu0 nanoparticles. The Cux/HAP catalyst exhibited a higher catalytic activity for the oxidation of 1,2-propanediol with gaseous oxygen to lactic, acetic, and formic acids with the total selectivity of 70.3% even at a lower reaction temperature of 140 °C. The total selectivity of lactic, acetic, and formic acids reached 93.1% at a mild reaction temperature of 180 °C. However, the sole monometallic Cu0 nanoparticles or HAP nanorods had no catalytic activity for the oxidation of 1,2-propanediol. The metallic Cu0 nanoparticles and alkaline HAP nanorods in the Cux/HAP catalyst synergistically catalyzed the oxidation of 1,2-propanediol to carboxylic acid.

scholarly journals Preparation of the Nano Cobalt Powder by Wet Chemical Reduction Method

2011 ◽  
Vol 18 (3) ◽  
pp. 244-249 ◽  
Author(s):  
Hyun-Seon Hong ◽  
Young-Dae Ko ◽  
Lee-Seung Kang ◽  
Geon-Hong Kim ◽  
Hang-Chul Jung
Keyword(s):  
Reduction Method ◽  
Chemical Reduction ◽  
Cobalt Powder ◽  
Chemical Reduction Method ◽  
Wet Chemical

Preparation, Characterization and Catalytic Properties of Nanostructured Mesoporous Au/CeO2

2015 ◽  
Vol 778 ◽  
pp. 144-147
Author(s):  
Si Qin Deligen ◽  
Bao Agula
Keyword(s):  
Catalytic Activity ◽  
Reduction Method ◽  
Catalytic Properties ◽  
Chemical Reduction ◽  
Nanoparticle Assembly ◽  
Complete Oxidation ◽  
Chemical Reduction Method ◽  
Total Oxidation ◽  
Catalytic Activities ◽  
Surfactant Assisted

The mesoporous CeO2were prepared via a surfactant-assisted method of nanoparticle assembly, CTAB was used as surfactant. The mesoporous CeO2were used as the supports for preparingxAu/CeO2catalysts by the chemical reduction method, and the catalytic activities of the total oxidation of propane were studied. The prepared catalysts were characterized by XRD, TEM and N2adsorption techniques. The content of Au can affect the catalytic properties of thexAu/CeO2catalysts. 4Au/CeO2exhibited the highest catalytic activity in propane complete oxidation with theT100of 420 °C.

Effect of Ni morphology on removal of pentachlorophenol with Fe/Ni nanomaterials

2016 ◽  
Vol 16 (3) ◽  
pp. 810-816
Author(s):  
Rong Cheng ◽  
Can Cheng ◽  
Peng Liu ◽  
Lei Shi ◽  
Zhong Ma
Keyword(s):  
Iron Nanoparticles ◽  
Reduction Method ◽  
Chemical Reduction ◽  
Phenol Removal ◽  
Chlorinated Phenols ◽  
Chemical Reduction Method ◽  
Priority Pollutant ◽  
Magnetite Fe3o4 ◽  
Different Shapes ◽  
Wet Chemical

Chlorinated phenols are a kind of environmental priority pollutant that attract much attention. Nanosized Fe and Fe/Ni materials are considered as promising options for chlorinated phenol removal. The effect of Ni morphology on the removal of pentachlorophenol (PCP) with Fe/Ni nanomaterials was investigated in this study. Iron nanoparticles and nickel nanomaterials with different shapes were synthesized using a chemical reduction method and wet chemical techniques, respectively. The concentrations of PCP and chloride in solutions were measured with and without Ni present. The intermediates of PCP were also analyzed. The results showed that the dechlorination of PCP was promoted by Ni nanomaterials, among which the tubular porous Ni nanomaterials expressed the most promotion, then those with net shape and nanochains. However, the tubular porous Ni nanomaterials inhibited the removal of PCP, and the other two expressed a certain promotion. In the Fe/Ni system, Fe nanoparticles transformed into magnetite (Fe3O4) and/or maghemite (Fe2O3), and Ni nanomaterials were still pure Ni after reaction. The introduction of Ni nanomaterials would improve dechlorination of PCP, but the removal of PCP might be inhibited or improved as the morphology of Ni changed.

scholarly journals Synthesis and characterization of silver/talc nanocomposites using the wet chemical reduction method

2010 ◽  
pp. 743 ◽  
Author(s):  
Kamyar Shameli ◽  
Majid Darroudi ◽  
Mansor Bin Ahmad ◽  
Wan Md. Zin Wan Yunis ◽  
Nor Azowa Ibrahim
Keyword(s):  
Reduction Method ◽  
Chemical Reduction ◽  
Synthesis And Characterization ◽  
Chemical Reduction Method ◽  
Wet Chemical
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