Preparation of improved Ag–Pd/TiO2 catalysts using the combined strong electrostatic adsorption and electroless deposition methods for the selective hydrogenation of acetylene

2016 ◽  
Vol 6 (14) ◽  
pp. 5608-5617 ◽  
Author(s):  
Sumonrat Riyapan ◽  
Yunya Zhang ◽  
Akkarat Wongkaew ◽  
Boontida Pongthawornsakun ◽  
John R. Monnier ◽  
...  
Keyword(s):  
Selective Hydrogenation ◽  
Electroless Deposition ◽  
Electrostatic Adsorption ◽  
Strong Electrostatic Adsorption ◽  
Selective Hydrogenation Of Acetylene

Ag–Pd/TiO2 catalysts prepared by the strong electrostatic adsorption and electroless deposition with θAg 0–0.92.

scholarly journals The H2-Treated TiO2 Supported Pt Catalysts Prepared by Strong Electrostatic Adsorption for Liquid-Phase Selective Hydrogenation

Catalysts ◽  
2018 ◽  
Vol 8 (2) ◽  
pp. 87 ◽  
Author(s):  
Sasithorn Kuhaudomlap ◽  
Okorn Mekasuwandumrong ◽  
Piyasan Praserthdam ◽  
Shin-Ichiro Fujita ◽  
Masahiko Arai ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Selective Hydrogenation ◽  
Pt Catalysts ◽  
Electrostatic Adsorption ◽  
Strong Electrostatic Adsorption ◽  
Supported Pt Catalysts

A carbonized cobalt catalyst supported by acid-activated clay for the selective hydrogenation of acetylene

2021 ◽  
Author(s):  
Aizat Aitugan ◽  
Sandugash Tanirbergenova ◽  
Yerbol Tileuberdi ◽  
Onuralp Yucel ◽  
Dildara Tugelbayeva ◽  
...  
Keyword(s):  
Selective Hydrogenation ◽  
Cobalt Catalyst ◽  
Selective Hydrogenation Of Acetylene ◽  
Acid Activated Clay

Variability of particle configurations achievable by 2-nozzle flame syntheses of the Au-Pd-TiO2 system and their catalytic behaviors in the selective hydrogenation of acetylene

2018 ◽  
Vol 549 ◽  
pp. 1-7 ◽  
Author(s):  
Boontida Pongthawornsakun ◽  
Okorn Mekasuwandumrong ◽  
Francisco J.Cadete Santos Aires ◽  
Robert Büchel ◽  
Alfons Baiker ◽  
...  
Keyword(s):  
Selective Hydrogenation ◽  
Selective Hydrogenation Of Acetylene

scholarly journals A study concerning the pretreatment of CNTs and its influence on the performance of NIB/CNTs amorphous catalyst

2006 ◽  
Vol 71 (11) ◽  
pp. 1153-1160 ◽  
Author(s):  
Chang Hu-Yuan ◽  
Feng Li ◽  
Li. Hua ◽  
Bin Zhang
Keyword(s):  
Selective Hydrogenation ◽  
Inductively Coupled Plasma ◽  
Acid Treatment ◽  
Chemical Reduction ◽  
X Ray Diffraction ◽  
Chemical Reduction Method ◽  
X Ray ◽  
Inductively Coupled ◽  
Selective Hydrogenation Of Acetylene ◽  
Transmission Electron

As prepared carbon nanotubes were pretreated with nitric acid (CNTs-HNO3) or ammonia (CNTs-NH3). Fourier transform infrared spectroscopy (FTIR) measurements showed that the surface of the nanotubes was functionalized with carboxylic and hydroxyl functional groups after the acid treatment and that basic groups containing nitrogen, such as N-H and C-N, were introduced to the surface of the nanotubes after the ammonia treatment. X-Ray diffraction analysis implied that the nickel residue in the CNTs was effectively removed by acid treatment. However, the nickel residue was only partially eliminated by ammonia pretreatment. NiB amorphous catalysts supported on CNTs-HNO3 and CNTs-NH3 were prepared by the impregnation-chemical reduction method and characterized by transmission electron microscopy (TEM), as well as inductively coupled plasma (ICP) spectroscopy and studied in the selective hydrogenation of acetylene. TEM measurements showed that a high density NiB particles of about 9 nm were homogeneously dispersed on the CNTs-NH3. However, NiB particles (13-23 nm)with amean size of 16 nm were scattered on the CNTs-HNO3.As a result, the activity and selectivity of NiB/CNTs-NH3 were higher than those of NiB/CNTs-HNO3 in the selective hydrogenation of acetylene.

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