Gamma radiation-assisted in situ synthesis of palladium nanoparticles supported on ethylenediamine-functionalized polypropylene fabric as an efficient catalyst for reduction of 4-nitrophenol

2020 ◽  
Vol 44 (44) ◽  
pp. 19337-19350
Author(s):  
Girlie Eunice P. Lopez ◽  
Jordan F. Madrid ◽  
Drexel H. Camacho

Immobilization of Pd nanometals on a functionalized non-woven polypropylene fabric offers heterogenous catalytic activity in many chemical transformations and convenient separation from the reaction mixture.

2014 ◽  
Vol 2 (44) ◽  
pp. 18952-18958 ◽  
Author(s):  
Mitasree Maity ◽  
Uday Maitra

Palladium nanoparticles were efficiently prepared in situ by sodium cyanoborohydride reduction of Pd(ii) at room temperature using calcium-cholate hydrogel fibers as templates. The PdNPs self-organize on the gel fibers, which supports the controlled growth as well as stabilization of PdNPs. The hybrid xerogel was used as an efficient catalyst for the Suzuki coupling reaction in water.


2010 ◽  
Vol 36 (22) ◽  
pp. 63-70
Author(s):  
Sergej Polisski ◽  
Bernhard Goller ◽  
Karen Wilson ◽  
Dmitry Kovalev ◽  
Vladimir Zaikowskii ◽  
...  

Author(s):  
Xiao-hua Tang ◽  
Rui-qiang Liu ◽  
Hai-feng Tian ◽  
Hui Li ◽  
fei zha ◽  
...  

Phosphorus promoted HZSM-5 zeolites (P-HZSM-5) were prepared by synthetic methods of incipient wetness impregnation and in-situ synthesis, respectively. It was characterized by the means of XRD, SEM, BET, TG and NH3-TPD. The P-HZSM-5 zeolite prepared by incipient wetness impregnation has a large specific surface area and pore size, and the weak acidity is remarkably increased. The catalytic activity of P-HZSM-5 for the coupling transformation of methanol with 1-butene to propylene was investigated. Under the reaction conditions of temperature at 550 ℃, pressure at 0.4 MPa, space velocity at 1800 mL/(gcath) and mole ratio of CH3OH/C4H8 to 1:1, the conversion of C4H8 can reach to 75.8%, and the selectivity and yield of propylene are 42.2% and 31.9%, respectively.


2019 ◽  
Vol 12 (03) ◽  
pp. 1950028 ◽  
Author(s):  
Tong Shen ◽  
Zhong Li ◽  
Yue Jiang ◽  
Zai-Gang Luo

A simple and facile method is described for the in situ synthesis of graphene oxide-Ag nanoplates (GO-AgNPs) hybrid structure and then served as sacrificial templates for producing graphene oxide-Au nanorings (GO-AuNRs) by galvanic replacement taken place on the GO surface. The catalytic activity of the resulting hybrid nanomaterial has been investigated for the reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) with sodium borohydride (NaBH4). The results showed that the rate constant of GO-AuNRs nanomaterials was 0.205[Formula: see text]min[Formula: see text] and the samples showed significant enhancement in catalytic activity.


Nanoscale ◽  
2016 ◽  
Vol 8 (14) ◽  
pp. 7749-7754 ◽  
Author(s):  
Dieqing Zhang ◽  
Peijue Liu ◽  
Shuning Xiao ◽  
Xufang Qian ◽  
Hui Zhang ◽  
...  

2009 ◽  
Vol 42 (3-4) ◽  
pp. 439-445 ◽  
Author(s):  
H FENG ◽  
C LI ◽  
H SHAN

2004 ◽  
Vol 386 (4-6) ◽  
pp. 364-368 ◽  
Author(s):  
Debasis Bera ◽  
Suresh C Kuiry ◽  
Matthew McCutchen ◽  
Arnold Kruize ◽  
Helge Heinrich ◽  
...  

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