One-step synthesis of B-doped mesoporous carbon as supports of Pd nanoparticles for liquid phase catalytic hydrodechlorination

2017 ◽  
Vol 97 ◽  
pp. 116-119 ◽  
Author(s):  
Rongrong Li ◽  
Jia Zhao ◽  
Deman Han ◽  
Xiaonian Li
Keyword(s):  
Liquid Phase ◽  
Mesoporous Carbon ◽  
Pd Nanoparticles ◽  
Catalytic Hydrodechlorination ◽  
One Step

Enhanced liquid phase catalytic hydrodechlorination of 2,4-dichlorophenol over mesoporous carbon supported Pd catalysts

2011 ◽  
Vol 12 (15) ◽  
pp. 1405-1409 ◽  
Author(s):  
Yun Shao ◽  
Zhaoyi Xu ◽  
Haiqin Wan ◽  
Yuqiu Wan ◽  
Huan Chen ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Mesoporous Carbon ◽  
Pd Catalysts ◽  
Catalytic Hydrodechlorination ◽  
Supported Pd Catalysts ◽  
Supported Pd

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 Ordered Mesoporous Carbon as a Support for Palladium-Based Hydrodechlorination Catalysts

Catalysts ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 23
Author(s):  
Farzeen Sakina ◽  
Carlos Fernandez-Ruiz ◽  
Jorge Bedia ◽  
Luisa Gomez-Sainero ◽  
Richard Baker
Keyword(s):  
Photoelectron Spectroscopy ◽  
Mesoporous Carbon ◽  
Catalyst Deactivation ◽  
Average Diameter ◽  
Pd Nanoparticles ◽  
Ordered Mesoporous Carbon ◽  
Catalyst Composition ◽  
Ordered Mesoporous ◽  
Higher Hydrocarbons ◽  
Carbon Catalysts

Ordered mesoporous carbon (OMC) was employed as a support for palladium nanoparticles in catalysts for the gas phase hydrodechlorination (HDC) of trichloromethane (TCM). 1 wt% palladium was incorporated using three methods: incipient wetness (IW); a dilute solution (DS) method; and a solid-liquid (SL) method. The effect of the preparation method on catalyst structure and activity was investigated. Catalyst composition and nanostructure were studied using gas physisorption, high specification transmission electron microscopy and X-ray photoelectron spectroscopy. Catalytic conversion and product selectivities were determined in steady-state activity tests at temperatures between 70 and 300 °C. Two of the catalysts (IW and DS) showed excellent dispersion of fine Pd nanoparticles of average diameter ~2 nm. These materials showed excellent activity for HDC of TCM which compares favourably with the performance reported for Pd on amorphous carbon catalysts. In addition, they showed relatively high selectivities to the more valuable higher hydrocarbons. However, the SL method gave rise to catalysts with larger particles (~3 nm) and a less uniform palladium distribution. This resulted in lower conversion and lower selectivities to higher hydrocarbons and in more severe catalyst deactivation at the highest reaction temperatures.

scholarly journals Chitosan-based enzyme ink for screen-printed bioanodes

RSC Advances ◽  
2021 ◽  
Vol 11 (33) ◽  
pp. 20550-20556
Author(s):  
Isao Shitanda ◽  
Kanako Oda ◽  
Noya Loew ◽  
Hikari Watanabe ◽  
Masayuki Itagaki ◽  
...  
Keyword(s):  
Magnesium Oxide ◽  
Mesoporous Carbon ◽  
Screen Printing ◽  
Printing Process ◽  
One Step ◽  
Screen Printed

Bio-composite inks based on magnesium oxide (MgO)-templated mesoporous carbon (MgOC) and chitosan cross-linked with genipin for one-step screen-printing process.

Oxygen reduction reaction on Pd nanoparticles supported on novel mesoporous carbon materials

2021 ◽  
pp. 139132
Author(s):  
Madis Lüsi ◽  
Heiki Erikson ◽  
Kaido Tammeveski ◽  
Alexey Treshchalov ◽  
Arvo Kikas ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Mesoporous Carbon ◽  
Carbon Materials ◽  
Pd Nanoparticles ◽  
Reduction Reaction ◽  
Mesoporous Carbon Materials

One-step preparation of TiO2 anti-reflection coating and cover layer by liquid phase deposition for monocrystalline Si PERC solar cell

2022 ◽  
Vol 234 ◽  
pp. 111433
Author(s):  
Jui-Yu Wang ◽  
Chien-Sheng Huang ◽  
Sin-Liang Ou ◽  
Yun-Shao Cho ◽  
Jung-Jie Huang
Keyword(s):  
Solar Cell ◽  
Liquid Phase ◽  
Liquid Phase Deposition ◽  
Cover Layer ◽  
One Step
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