Surface functionalization: an efficient alternative for promoting the catalytic activity of closed shell gold clusters

2020 ◽  
Vol 22 (40) ◽  
pp. 23351-23359
Author(s):  
Krati Joshi ◽  
Sailaja Krishnamurty ◽  
Manzoor Ahmad Dar
Keyword(s):  
Catalytic Activity ◽  
Surface Functionalization ◽  
Closed Shell ◽  
Gold Clusters ◽  
Efficient Alternative ◽  
Catalytic Behaviour

Surface functionalization induced catalytic behaviour in closed shell gold clusters.

The influence of surface functionalization of activated carbon on palladium dispersion and catalytic activity in hydrogen oxidation

2008 ◽  
Vol 335 (2) ◽  
pp. 241-251 ◽  
Author(s):  
V.Z. Radkevich ◽  
T.L. Senko ◽  
K. Wilson ◽  
L.M. Grishenko ◽  
A.N. Zaderko ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Activated Carbon ◽  
Surface Functionalization ◽  
Hydrogen Oxidation

Influence of the Support and the Size of Gold Clusters on Catalytic Activity for Glucose Oxidation

2008 ◽  
Vol 47 (48) ◽  
pp. 9265-9268 ◽  
Author(s):  
Tamao Ishida ◽  
Naoto Kinoshita ◽  
Hiroko Okatsu ◽  
Tomoki Akita ◽  
Takashi Takei ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Glucose Oxidation ◽  
Gold Clusters

Preparation of Very Reactive Thiol-Protected Gold Nanoparticles: Revisiting the Brust-Schiffrin Method

2006 ◽  
Vol 6 (3) ◽  
pp. 708-712 ◽  
Author(s):  
Koiti Araki ◽  
Eisuke Mizuguchi ◽  
Hirofumi Tanaka ◽  
Takuji Ogawa
Keyword(s):  
Thin Films ◽  
Gold Nanoparticles ◽  
Surface Functionalization ◽  
Self Assembly ◽  
Gold Clusters ◽  
Layer By Layer ◽  
Inorganic Hybrid ◽  
New Material ◽  
Modified Surface ◽  
Layer Control

The preparation and properties of tert-dodecanethiol protected gold nanoparticles amenable to very rapid surface functionalization by associative mechanism is described. The new material can be easily prepared by controlling the reaction time, because only a limited but enough number of tert-dodecanethiol to stabilize the gold clusters is bond to the surface until about an hour. Accordingly, it can be isolated as a solid and handled much like the highly stabilized Brust-Schiffrin analogues, but reacted very rapidly with any molecular species containing one or multiple functional groups such as thiol, disulfide, pyridine, etc., These characteristics are ideal for the preparation of a variety of new organic–inorganic hybrid nanomaterials by coordinative self-assembly. This possibility was illustrated using meso-tetra(4-pyridyl)porphyrin, which promptly bonded to the reactive protected gold nanoparticles generating a solid that can be grown as thin films with layer-by-layer control on a suitably modified surface.

scholarly journals The effect of size, charge state and composition on the binding of propene to yttrium-doped gold clusters

RSC Advances ◽  
2021 ◽  
Vol 11 (47) ◽  
pp. 29186-29195
Author(s):  
Júlia Barabás ◽  
Piero Ferrari ◽  
Vladimir Kaydashev ◽  
Jan Vanbuel ◽  
Ewald Janssens ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Charge State ◽  
Metal Clusters ◽  
Gold Clusters ◽  
Dopant Atoms

The catalytic activity of metal clusters can be easily tuned by their size, charge state, or the introduction of dopant atoms.

scholarly journals Catalytic Activity of Atomic Gold-Decorated Polyaniline Support in Glucose Oxidation

Electrochem ◽  
2020 ◽  
Vol 1 (4) ◽  
pp. 394-399
Author(s):  
Yuki Ito ◽  
Tso-Fu Mark Chang ◽  
Yu-An Chien ◽  
Chun-Yi Chen ◽  
Parthojit Chakraborty ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Glucose Oxidation ◽  
Gold Clusters ◽  
Atomic Level ◽  
Atomic Size ◽  
Electrodeposition Process ◽  
Oxidation Current ◽  
Au Cluster ◽  
Phosphate Buffered Saline ◽  
Oxidation Of Glucose

Atomic-level gold clusters are decorated on a polyaniline (PANI) support by a cyclic atomic electrodeposition process, and the catalytic activity in the oxidation of glucose is studied. The evaluation is conducted by cyclic voltammetry using atomic-level gold clusters-decorated PANI (PANI/AuN, where N indicates the atomic size of the Au cluster and N = 1~3 in this study) as the working electrode and a solution containing 0 to 50.0 mM of glucose in phosphate-buffered saline. The catalytic activity is determined from the oxidation current observed at around +0.6 V vs. Ag/AgCl. The catalytic activity is found to be affected by the size of gold clusters decorated on the PANI/AuN, whereby the catalytic activity is low when N is 1 or 3. On the other hand, an obvious enhancement in the catalytic activity is observed for the PANI/Au2 electrode.

scholarly journals Ligand effect on the catalytic activity of porphyrin-protected gold clusters in the electrochemical hydrogen evolution reaction

2018 ◽  
Vol 9 (1) ◽  
pp. 261-265 ◽  
Author(s):  
Daichi Eguchi ◽  
Masanori Sakamoto ◽  
Toshiharu Teranishi
Keyword(s):  
Catalytic Activity ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Gold Clusters ◽  
Ligand Effect

Ligand effect on the catalytic activity of gold clusters in the electrochemical hydrogen evolution reaction.

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