Metal–organic framework MIL-101 supported bimetallic Pd–Cu nanocrystals as efficient catalysts for chromium reduction and conversion of carbon dioxide at room temperature

2016 ◽  
Vol 40 (4) ◽  
pp. 3109-3118 ◽  
Author(s):  
Manoj Trivedi ◽  
Bhaskaran Bhaskaran ◽  
Akshay Kumar ◽  
Gurmeet Singh ◽  
Abhinav Kumar ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Formic Acid ◽  
Room Temperature ◽  
Metal Organic Framework ◽  
Terminal Alkynes ◽  
Chromium Reduction ◽  
Zeolite Type ◽  
Metal Organic ◽  
Organic Framework

A series of bimetallic Pd–Cu nanocrystals supported on the zeolite-type metal–organic framework MIL-101 and their application in the reduction of Cr(vi) to Cr(iii) using formic acid and the conversion of terminal alkynes into propiolic acids with CO2 are reported.

scholarly journals Electro-reduction of carbon dioxide at low over-potential at a metal–organic framework decorated cathode

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Xinchen Kang ◽  
Lili Li ◽  
Alena Sheveleva ◽  
Xue Han ◽  
Jiangnan Li ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Formic Acid ◽  
Active Sites ◽  
Metal Organic Framework ◽  
Computational Modelling ◽  
Structural Defects ◽  
Resonance Spectroscopy ◽  
Faradaic Efficiency ◽  
Metal Organic ◽  
Organic Framework

Abstract Electrochemical reduction of carbon dioxide is a clean and highly attractive strategy for the production of organic products. However, this is hindered severely by the high negative potential required to activate carbon dioxide. Here, we report the preparation of a copper-electrode onto which the porous metal–organic framework [Cu2(L)] [H4L = 4,4′,4″,4′′′-(1,4-phenylenebis(pyridine-4,2,6-triyl))tetrabenzoic acid] can be deposited by electro-synthesis templated by an ionic liquid. This decorated electrode shows a remarkable onset potential for reduction of carbon dioxide to formic acid at −1.45 V vs. Ag/Ag+, representing a low value for electro-reduction of carbon dioxide in an organic electrolyte. A current density of 65.8 mA·cm−2 at −1.8 V vs. Ag/Ag+ is observed with a Faradaic efficiency to formic acid of 90.5%. Electron paramagnetic resonance spectroscopy confirms that the templated electro-synthesis affords structural defects in the metal–organic framework film comprising uncoupled Cu(II) centres homogenously distributed throughout. These active sites promote catalytic performance as confirmed by computational modelling.

scholarly journals Models Facilitating the Design of a New Metal‐Organic Framework Catalyst for the Selective Decomposition of Formic Acid into Hydrogen and Carbon Dioxide

ChemCatChem ◽  
2019 ◽  
Vol 11 (10) ◽  
pp. 2372-2372
Author(s):  
Richard A. J. O'Hair ◽  
Antonija Mravak ◽  
Marjan Krstić ◽  
Vlasta Bonačić‐Koutecký
Keyword(s):  
Carbon Dioxide ◽  
Formic Acid ◽  
Metal Organic Framework ◽  
Metal Organic ◽  
Organic Framework

scholarly journals Models Facilitating the Design of a New Metal‐Organic Framework Catalyst for the Selective Decomposition of Formic Acid into Hydrogen and Carbon Dioxide

ChemCatChem ◽  
2019 ◽  
Vol 11 (10) ◽  
pp. 2443-2448 ◽  
Author(s):  
Richard A. J. O'Hair ◽  
Antonija Mravak ◽  
Marjan Krstić ◽  
Vlasta Bonačić‐Koutecký
Keyword(s):  
Carbon Dioxide ◽  
Formic Acid ◽  
Metal Organic Framework ◽  
Metal Organic ◽  
Organic Framework

scholarly journals Selective capture of carbon dioxide from hydrocarbons using a metal-organic framework

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Omid T. Qazvini ◽  
Ravichandar Babarao ◽  
Shane G. Telfer
Keyword(s):  
Carbon Dioxide ◽  
Density Functional ◽  
Metal Organic Framework ◽  
Density Functional Theory Calculations ◽  
Time Lags ◽  
X Ray Crystallography ◽  
Metal Organic ◽  
Adsorption Of Co ◽  
Short Time ◽  
Organic Framework

AbstractEfficient and sustainable methods for carbon dioxide capture are highly sought after. Mature technologies involve chemical reactions that absorb CO2, but they have many drawbacks. Energy-efficient alternatives may be realised by porous physisorbents with void spaces that are complementary in size and electrostatic potential to molecular CO2. Here, we present a robust, recyclable and inexpensive adsorbent termed MUF-16. This metal-organic framework captures CO2 with a high affinity in its one-dimensional channels, as determined by adsorption isotherms, X-ray crystallography and density-functional theory calculations. Its low affinity for other competing gases delivers high selectivity for the adsorption of CO2 over methane, acetylene, ethylene, ethane, propylene and propane. For equimolar mixtures of CO2/CH4 and CO2/C2H2, the selectivity is 6690 and 510, respectively. Breakthrough gas separations under dynamic conditions benefit from short time lags in the elution of the weakly-adsorbed component to deliver high-purity hydrocarbon products, including pure methane and acetylene.

Sign in / Sign up

Export Citation Format

Share Document