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

2008 ◽  
Vol 120 (48) ◽  
pp. 9405-9408 ◽  
Author(s):  
Tamao Ishida ◽  
Naoto Kinoshita ◽  
Hiroko Okatsu ◽  
Tomoki Akita ◽  
Takashi Takei ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Glucose Oxidation ◽  
Gold Clusters

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

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 Catalytic activity of gold nanoparticles deposited on N-doped carbon-based supports in oxidation of glucose and arabinose mixtures

2021 ◽  
Author(s):  
Sebastian Franz ◽  
Nataliya D. Shcherban ◽  
Igor Bezverkhyy ◽  
Sergii A. Sergiienko ◽  
Irina L. Simakova ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Catalytic Activity ◽  
Glucose Oxidation ◽  
Glucuronic Acid ◽  
Carbon Surface ◽  
Carbon Supports ◽  
Constant Ph ◽  
Oxidation Of Glucose ◽  
Mesoporous Structures ◽  
Carbon Based

AbstractOxidation of a mixture of glucose and arabinose over Au particles deposited on porous carbons, N-doped carbons and carbon nitrides was investigated at 70 °C, under constant pH of 8, and oxygen partial pressure 0.125 atm. In particular, Au deposited on nitrogen-containing carbon-based mesoporous structures demonstrated activity in the oxidation of the sugars to the corresponding aldonic acids higher than gold deposited on undoped carbon supports (conversion of glucose up to ca. 60%, arabinose–ca. 30% after 200 min). The results can be explained by the basic nature of the supports leading to an increase in the polarity of the carbon surface and the oxygen activation. Glucuronic acid (with selectivity ca. 10–93.5%) together with gluconic acid was formed as a result of glucose oxidation, while arabinose was selectively oxidized to arabinonic acid.

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.

Template-based electrodeposition of Pt/Ni nanowires and its catalytic activity towards glucose oxidation

2011 ◽  
Vol 58 ◽  
pp. 551-555 ◽  
Author(s):  
Sahar Sadat Mahshid ◽  
Sara Mahshid ◽  
Abolghasem Dolati ◽  
Mohammad Ghorbani ◽  
Lixia Yang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Glucose Oxidation

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.

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