Simultaneous Construction of Silica Nanotubes Loaded with Pd Nanoparticles for Catalytic Hydrodechlorination of Chlorophenols

2021 ◽  
Author(s):  
Tao Hu ◽  
Tingting Liu ◽  
Caiyun Xu ◽  
Mingxi Liu ◽  
Shenghu Zhou
Keyword(s):  
Pd Nanoparticles ◽  
Silica Nanotubes ◽  
Catalytic Hydrodechlorination

Pd nanoparticles supported on amino-functionalized magnetic mesoporous silica nanotubes: a highly selective catalyst for the catalytic hydrodechlorination reaction

RSC Advances ◽  
2016 ◽  
Vol 6 (80) ◽  
pp. 76582-76589 ◽  
Author(s):  
Shiling Zhao ◽  
Chang Zhao ◽  
Xinzhe Li ◽  
Feng Li ◽  
Lixin Jiao ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Pd Nanoparticles ◽  
Catalytic Performance ◽  
Silica Nanotubes ◽  
Selective Catalyst ◽  
Catalytic Hydrodechlorination ◽  
Amine Functionalized ◽  
Highly Dispersed ◽  
Magnetic Mesoporous Silica

Highly dispersed Pd nanoparticles supported on amine-functionalized magnetic mesoporous silica nanotubes are prepared. This catalyst exhibits remarkable catalytic performance for the HDC reaction.

Pd nanoparticles modified rod-like nitrogen-doped ordered mesoporous carbons for effective catalytic hydrodechlorination of chlorophenols

RSC Advances ◽  
2016 ◽  
Vol 6 (33) ◽  
pp. 27313-27319 ◽  
Author(s):  
Wei Zhang ◽  
Fushan Wang ◽  
Xinlin Li ◽  
Yansheng Liu ◽  
Jiantai Ma
Keyword(s):  
Self Assembly ◽  
Pd Nanoparticles ◽  
Soft Template ◽  
Mesoporous Carbons ◽  
One Pot ◽  
Ordered Mesoporous Carbons ◽  
Catalytic Hydrodechlorination ◽  
Nitrogen Doped ◽  
Ordered Mesoporous

The preparation of rod-like nitrogen-doped ordered mesoporous carbons (NOMCs) through a facial aqueous soft-template self-assembly route in one-pot is presented in this work.

scholarly journals The Effect of Shape-Controlled Pt and Pd Nanoparticles on Selective Catalytic Hydrodechlorination of Trichloroethylene

Catalysts ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1314
Author(s):  
Oğuz Yunus Sarıbıyık ◽  
Christian Weilach ◽  
Selahattin Serin ◽  
Günther Rupprechter
Keyword(s):  
Morphological Characteristics ◽  
Pd Nanoparticles ◽  
Catalytic Performance ◽  
X Ray Diffraction ◽  
Catalytic Hydrodechlorination ◽  
Nanoparticle Shape ◽  
Transmission Electron ◽  
Shape Controlled ◽  
Ethylene Selectivity ◽  
Distinct Morphology

Tailoring the shape of nanoscale materials enables obtaining morphology-controlled surfaces exhibiting specific interactions with reactants during catalytic reactions. The specifics of nanoparticle surfaces control the catalytic performance, i.e., activity and selectivity. In this study, shape-controlled Platinum (Pt) and Palladium (Pd) nanoparticles with distinct morphology were produced, i.e., cubes and cuboctahedra for Pt and spheres and polyhedra/multiple-twins for Pd, with (100), (111 + 100), curved/stepped and (111) facets, respectively. These particles with well-tuned surfaces were subsequently deposited on a Zirconium oxide (ZrO2) support. The morphological characteristics of the particles were determined by high resolution transmission electron microscopy (HR-TEM) and X-ray diffraction (XRD), while their adsorption properties were investigated by Fourier transform infrared spectroscopy (FTIR) of CO adsorbed at room temperature. The effect of the nanoparticle shape and surface structure on the catalytic performance in hydrodechlorination (HDCl) of trichloroethylene (TCE) was examined. The results show that nanoparticles with different surface orientations can be employed to affect selectivity, with polyhedral and multiply-twinned Pd exhibiting the best ethylene selectivity.

Microreactor of Pd Nanoparticles Immobilized Hollow Microspheres for Catalytic Hydrodechlorination of Chlorophenols in Water

2009 ◽  
Vol 2 (1) ◽  
pp. 127-133 ◽  
Author(s):  
Yang Lan ◽  
Li Yang ◽  
Minchao Zhang ◽  
Wangqing Zhang ◽  
Shengnan Wang
Keyword(s):  
Pd Nanoparticles ◽  
Hollow Microspheres ◽  
Catalytic Hydrodechlorination

Catalytic hydrodechlorination reaction of chlorophenols by Pd nanoparticles supported on graphene

2015 ◽  
Vol 42 (1) ◽  
pp. 71-82 ◽  
Author(s):  
Wonghil Chang ◽  
Hojun Kim ◽  
Ga Young Lee ◽  
Byoung Joon Ahn
Keyword(s):  
Pd Nanoparticles ◽  
Catalytic Hydrodechlorination

Droplet Factories: Synthesis and Assembly of Silver and Palladium Nanoparticles at the Liquid-Liquid Interface

2019 ◽  
Author(s):  
Suchanuch Sachdev ◽  
Rhushabh Maugi ◽  
Sam Davis ◽  
Scott Doak ◽  
Zhaoxia Zhou ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Reaction Rate ◽  
Tertiary Structure ◽  
Flow Reactor ◽  
Pd Nanoparticles ◽  
Subsequent Removal ◽  
Immiscible Liquids ◽  
Flow Reactors ◽  
Droplet Flow ◽  
One Step

<div>The interface between two immiscible liquids represent an ideal substrate for the assembly of nanomaterials. The defect free surface provides a reproducible support for creating densely packed ordered materials. Here a droplet flow reactor is presented for the synthesis and/ or assembly of nanomaterials at the interface of the emulsion. Each droplet acts as microreactor for a reaction between decamethylferrocene (DmFc) within the hexane and metal salts (Ag+/ Pd2+) in the aqueous phase. The hypothesis was that a spontaneous, interfacial reaction would lead to the assembly of nanomaterials creating a Pickering emulsion. The subsequent removal of the solvents showed how the Ag nanoparticles were trapped at the interface and retain the shape of the droplet, however the Pd nanoparticles were dispersed with no tertiary structure. To further exploit this, a one-step process where the particles are synthesised and then assembled into core-shell materials was proposed. The same reactions were performed in the presence of oleic acid stabilise Iron oxide nanoparticles dispersed within the hexane. It was shown that by changing the reaction rate and ratio between palladium and iron oxide a continuous coating of palladium onto iron oxide microspheres can be created. The same reaction with silver, was unsuccessful and resulted in the silver particles being shed into solution, or incorporated within the iron oxide micro particle. These insights offer a new method and chemistry within flow reactors for the creation of palladium and silver nanoparticles. We use the technique to create metal coated iron oxide nanomaterials but the methodology could be easily transferred to the assembly of other materials.</div><div><br></div>

scholarly journals Pd Nanoparticles Stabilized on the Cross-Linked Melamine-Based SBA-15 as a Catalyst for the Mizoroki–Heck Reaction

2021 ◽  
Author(s):  
Ayat Nuri ◽  
Abolfazl Bezaatpour ◽  
Mandana Amiri ◽  
Nemanja Vucetic ◽  
Jyri-Pekka Mikkola ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Inductively Coupled Plasma ◽  
High Surface ◽  
High Surface Area ◽  
Coupling Reaction ◽  
Pd Nanoparticles ◽  
Significant Activity ◽  
Inductively Coupled ◽  
Transmission Electron ◽  
Ft Ir

AbstractMesoporous SBA-15 silicate with a high surface area was prepared by a hydrothermal method, successively modified by organic melamine ligands and then used for deposition of Pd nanoparticles onto it. The synthesized materials were characterized with infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), nitrogen physisorption, scanning electron microscopy (SEM) coupled with energy dispersive X-ray analysis (EDX), transmission electron microscopy (TEM), nuclear magnetic resonance (NMR) and inductively coupled plasma (ICP-OES). The catalyst was effectively used in the Mizoroki–Heck coupling reaction of various reactants in the presence of an organic base giving the desired products in a short reaction time and with small catalysts loadings. The reaction parameters such as the base type, amounts of catalyst, solvents, and the temperature were optimized. The catalyst was easily recovered and reused at least seven times without significant activity losses. Graphic Abstract

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