Defective Pt nanoparticles encapsulated in mesoporous metal–organic frameworks for enhanced catalysis

2018 ◽  
Vol 54 (64) ◽  
pp. 8822-8825 ◽  
Author(s):  
Qiang Wang ◽  
Xu-Sheng Wang ◽  
Chun-Hui Chen ◽  
Xue Yang ◽  
Yuan-Biao Huang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Active Sites ◽  
Metal Organic Frameworks ◽  
Pt Nanoparticles ◽  
Mild Conditions ◽  
Metal Organic ◽  
Mesoporous Metal ◽  
First Time

Highly ultrafine defective Pt nanoparticles (NPs) encapsulated in the mesopores of MIL-101 (Pt(Co)@MIL-101) were achieved for the first time through a chemical dealloying approach. The obtained material could provide more active sites to contact reactants and showed superior catalytic activity towards the hydrogenation of nitroarenes under mild conditions.

scholarly journals On the importance of combining bulk- and surface-active sites to maximize the catalytic activity of metal–organic frameworks for the oxidative dehydrogenation of alcohols using alkyl hydroperoxides as hydride acceptors

2020 ◽  
Vol 10 (20) ◽  
pp. 6935-6947
Author(s):  
P. Gairola ◽  
Y. Millot ◽  
J.-M. Krafft ◽  
F. Averseng ◽  
F. Launay ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Oxidative Dehydrogenation ◽  
Active Sites ◽  
Metal Organic Frameworks ◽  
Mild Conditions ◽  
Alkyl Hydroperoxides ◽  
Metal Organic ◽  
Alcohol Dehydrogenation ◽  
Surface Active

The combination of spectroscopically characterized bulk- and surface-active zirconium sites makes Zr-MOF crystals efficient catalysts for alcohol dehydrogenation under mild conditions.

Ni–Pt nanoparticles growing on metal organic frameworks (MIL-96) with enhanced catalytic activity for hydrogen generation from hydrazine at room temperature

2015 ◽  
Vol 44 (13) ◽  
pp. 6212-6218 ◽  
Author(s):  
Lan Wen ◽  
Xiaoqiong Du ◽  
Jun Su ◽  
Wei Luo ◽  
Ping Cai ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Room Temperature ◽  
Hydrogen Generation ◽  
Metal Organic Frameworks ◽  
Pt Nanoparticles ◽  
Metal Organic ◽  
Hydrogen Selectivity

3.2 nm NiPt nanoparticles have been successfully grown on the surface of MIL-96, which exhibit 100% hydrogen selectivity and the highest catalytic activity toward dehydrogenation of hydrazine with TOF value of 114.3 h−1 at room temperature.

Modulation of the catalytic activity of Pt nanoparticles through charge-transfer interactions with metal–organic frameworks

2017 ◽  
Vol 53 (50) ◽  
pp. 6720-6723 ◽  
Author(s):  
Shotaro Yoshimaru ◽  
Masaaki Sadakiyo ◽  
Aleksandar Staykov ◽  
Kenichi Kato ◽  
Miho Yamauchi
Keyword(s):  
Catalytic Activity ◽  
Charge Transfer ◽  
Co Oxidation ◽  
Oxidation Reaction ◽  
Metal Organic Frameworks ◽  
Pt Nanoparticles ◽  
Charge Transfer Interaction ◽  
Co Oxidation Reaction ◽  
Metal Organic ◽  
A Charge

A charge transfer interaction between Pt nanoparticles and MOFs modulated the catalytic activity of Pt for a CO oxidation reaction.

Encapsulating Pt Nanoparticles inside a Derived Two-Dimensional Metal–Organic Frameworks for the Enhancement of Catalytic Activity

2020 ◽  
Vol 12 (9) ◽  
pp. 10359-10368 ◽  
Author(s):  
Wei Wu ◽  
Zeyi Zhang ◽  
Zhao Lei ◽  
Xiaoyue Wang ◽  
Yangyang Tan ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Metal Organic Frameworks ◽  
Pt Nanoparticles ◽  
Two Dimensional ◽  
Metal Organic

Inverse relationship of dimensionality and catalytic activity in CO2transformation: a systematic investigation by comparing multidimensional metal–organic frameworks

2017 ◽  
Vol 5 (30) ◽  
pp. 15961-15969 ◽  
Author(s):  
Robin Babu ◽  
Roshith Roshan ◽  
Yeongrok Gim ◽  
Yun Hee Jang ◽  
Jintu Francis Kurisingal ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Active Sites ◽  
Inverse Relationship ◽  
Metal Organic Frameworks ◽  
Catalytic Performance ◽  
Systematic Investigation ◽  
Cycloaddition Reactions ◽  
Metal Organic ◽  
Relationship Of

The correlation between dimensionality and active sites on deciding the catalytic performance of an MOF catalyst in CO2–epoxide cycloaddition reactions has been studied.

Synthesis of Fe/M (M = Mn, Co, Ni) bimetallic metal organic frameworks and their catalytic activity for phenol degradation under mild conditions

2017 ◽  
Vol 4 (1) ◽  
pp. 144-153 ◽  
Author(s):  
Qiao Sun ◽  
Min Liu ◽  
Keyan Li ◽  
Yitong Han ◽  
Yi Zuo ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Metal Organic Frameworks ◽  
Phenol Degradation ◽  
Catalytic Process ◽  
Mild Conditions ◽  
Metal Organic

Results show that the incorporation of Mn can significantly promote the catalytic process, Co exhibits no obviously favorable behavior, and Ni presents an apparently inhibitory impact.

scholarly journals MOFs-Derived Zn-Based Catalysts in Acetylene Acetoxylation

Nanomaterials ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 98
Author(s):  
Mengli Li ◽  
Zhuang Xu ◽  
Yuhao Chen ◽  
Guowang Shen ◽  
Xugen Wang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Photoelectron Spectroscopy ◽  
Active Sites ◽  
Metal Organic Frameworks ◽  
Catalytic Performance ◽  
Electron Cloud ◽  
Nitrogen Gas ◽  
X Ray ◽  
Metal Organic ◽  
Cloud Density

Metal–organic frameworks (MOFs)-derived materials with a large specific surface area and rich pore structures are favorable for catalytic performance. In this work, MOFs are successfully prepared. Through pyrolysis of MOFs under nitrogen gas, zinc-based catalysts with different active sites for acetylene acetoxylation are obtained. The influence of the oxygen atom, nitrogen atom, and coexistence of oxygen and nitrogen atoms on the structure and catalytic performance of MOFs-derived catalysts was investigated. According to the results, the catalysts with different catalytic activity are Zn-O-C (33%), Zn-O/N-C (27%), and Zn-N-C (12%). From the measurements of X-ray photoelectron spectroscopy (XPS), it can be confirmed that the formation of different active sites affects the electron cloud density of zinc. The electron cloud density of zinc affects the ability to attract CH3COOH, which makes catalysts different in terms of catalytic activity.

Trace water mediated growth of oriented single-crystalline mesoporous metal–organic frameworks on gold nanorods

2018 ◽  
Vol 54 (59) ◽  
pp. 8182-8185 ◽  
Author(s):  
Zehao Zhou ◽  
Mengyuan Li ◽  
Jian Zhao ◽  
Zhenghan Di ◽  
Chunzhi Di ◽  
...  
Keyword(s):  
Gold Nanorods ◽  
Metal Organic Frameworks ◽  
Single Crystalline ◽  
Metal Organic ◽  
Mesoporous Metal ◽  
Trace Water ◽  
First Time

The growth of single-crystalline mesoporous MOFs with well-controlled orientation on the surface of gold nanorods was reported for the first time.

Phosphotungstic acid encapsulated in the mesocages of amine-functionalized metal–organic frameworks for catalytic oxidative desulfurization

2014 ◽  
Vol 43 (31) ◽  
pp. 11950-11958 ◽  
Author(s):  
Xu-Sheng Wang ◽  
Yuan-Biao Huang ◽  
Zu-Jin Lin ◽  
Rong Cao
Keyword(s):  
Catalytic Activity ◽  
Phosphotungstic Acid ◽  
Metal Organic Frameworks ◽  
Oxidative Desulfurization ◽  
High Catalytic Activity ◽  
Exchange Method ◽  
Mild Conditions ◽  
Amine Functionalized ◽  
Catalytic Oxidative Desulfurization ◽  
Metal Organic

PTA@MIL-101(Cr)-NH2 has been prepared via an anion exchange method, and showed high catalytic activity for oxidative desulfurization under mild conditions.

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