A multi-component polyoxometalate and its catalytic performance for CO2 cycloaddition reactions

2015 ◽  
Vol 44 (22) ◽  
pp. 10152-10155 ◽  
Author(s):  
Shumin Chen ◽  
Ying Liu ◽  
Jipeng Guo ◽  
Pengzhen Li ◽  
Zhiyuan Huo ◽  
...  
Keyword(s):  
Catalytic Performance ◽  
Cycloaddition Reactions ◽  
Earth Abundant

A multi-component polyoxometalate based on earth-abundant elements (NH4)10[Co8(H2O)10V10Mo23O104(OH)6]·34.5H2O was obtained, which can prompt the coupling of CO2 with epoxides.

Synthesis and effective catalytic performance in cycloaddition reactions with CO2 of boronate esters versus N-heterocyclic carbene (NHC)-stabilized boronate esters

2020 ◽  
Vol 4 (11) ◽  
pp. 5682-5696
Author(s):  
Ahmet Kilic ◽  
Bayram Sobay ◽  
Emine Aytar ◽  
Rahime Söylemez
Keyword(s):  
Catalytic Performance ◽  
Cycloaddition Reactions ◽  
Cyclic Carbonates ◽  
Boronate Esters

New boronate esters were prepared and used as catalysts for the synthesis of cyclic carbonates from CO2 and epoxides without solvent.

Photocatalytic conversion of CO2 using earth-abundant catalysts: A review on mechanism and catalytic performance

2019 ◽  
Vol 113 ◽  
pp. 109246 ◽  
Author(s):  
Munawar Khalil ◽  
Jarnuzi Gunlazuardi ◽  
Tribidasari A. Ivandini ◽  
Aminah Umar
Keyword(s):  
Catalytic Performance ◽  
Earth Abundant

scholarly journals Fast and Robust Synthesis of Metalated PCN-222 and Their Catalytic Performance in Cycloaddition Reactions with CO2

2019 ◽  
Vol 38 (18) ◽  
pp. 3429-3435 ◽  
Author(s):  
Sergio Carrasco ◽  
Amparo Sanz-Marco ◽  
Belén Martín-Matute
Keyword(s):  
Catalytic Performance ◽  
Cycloaddition Reactions ◽  
Robust Synthesis

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.

Surface and Interface Engineering of Tungsten Oxide for Highly-Efficient Catalysis

2017 ◽  
Vol 900 ◽  
pp. 54-57
Author(s):  
Jia Jia Song ◽  
Zhen Feng Huang ◽  
Ji Jun Zou
Keyword(s):  
Catalytic Performance ◽  
Metal Catalyst ◽  
Defect Engineering ◽  
Efficient Catalyst ◽  
Tungsten Oxides ◽  
Structure And Property ◽  
Surface And Interface ◽  
Earth Abundant ◽  
Engineering Morphology ◽  
Composition Structure

The catalytic performance strongly relies on the composition, structure, and property of the material used. Earth-abundant tungsten oxides family (WOx≤3) has received considerable attention in photocatalysis, electrochemistry and catalytic hydrogenation due to its highly tunable structure and unique physicochemical properties. Substantial efforts have been made by us to improve the photocatalytic activity of WOx≤3 by enhancing light harvesting, charge transfer and separation, including defect engineering, morphology control, and hetero-junction construction. Additionally, the semiconductor-to-metal transition of WOx≤3 has been found with the increase of defect concentration, suggesting H2 can be activated on them in a similar way of a metal catalyst. As a result, WO2.72 also can function as a versatile and efficient catalyst for the saturation of olefins and selective transform of nitroarenes to anilines.

A nona-vacant Keggin-type tricarbonyl rhenium derivative {[PMo3O16][Re(CO)3]4}5− and its catalytic performance for CO2 cycloaddition reactions

RSC Advances ◽  
2015 ◽  
Vol 5 (84) ◽  
pp. 69006-69009 ◽  
Author(s):  
Zhiyuan Huo ◽  
Jipeng Guo ◽  
Jingkun Lu ◽  
Qiaofei Xu ◽  
Pengtao Ma ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Cycloaddition Reaction ◽  
Catalytic Performance ◽  
Cycloaddition Reactions ◽  
Frontier Orbitals ◽  
Keggin Type ◽  
Good Catalytic Activity

A nona-vacant Keggin-type tricarbonyl rhenium derivative {[PMo3O16][Re(CO)3]4}5− was synthesized and its frontier orbitals were computed. Interestingly, it showed good catalytic activity for the CO2 cycloaddition reaction.

Preparation of Porous CoS2 Nanostructures for Highly Efficient Electrocatalytic Hydrogen Evolution

2019 ◽  
Vol 944 ◽  
pp. 643-649
Author(s):  
Ka Wang ◽  
Hai Zeng Song ◽  
Wei Lan Guo ◽  
Shan Cheng Yan
Keyword(s):  
Hydrogen Evolution ◽  
Low Cost ◽  
Environmental Issues ◽  
Catalytic Performance ◽  
Carbon Cloth ◽  
Facile Hydrothermal Method ◽  
Highly Efficient ◽  
Earth Abundant ◽  
Hydrogen Evolution Reactions ◽  
A Current

In response to global energy and environmental issues, development of efficient and robust earth-abundant electrocatalysts for hydrogen evolution reaction is particularly meaningful. In this study, a facile hydrothermal method is developed to synthesize porous CoS2 nanostructures by using sulfur powder and thiourea as sulfur sources on carbon cloths for highly efficient hydrogen evolution reactions. The huge load of CoS2 on carbon cloth，their unique porous nanostructures equiped CoS2 nanomaterials with excellent electrocatalytic properties. The remarkable HER catalytic performance was achieved with -67 mV at a current density -10 mA cm-2 and the Tafel slope 62 mV dec-1 in 0.5 M H2SO4 solution. The overpotential of HER only lost 2 mV after 1000 cycles with remarkable stability. I think this work opens up a low cost and scalable route to fabricate transition metal-based materials for application in electrocatalysis.

scholarly journals Anchoring Cu1 species over nanodiamond-graphene for semi-hydrogenation of acetylene

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Fei Huang ◽  
Yuchen Deng ◽  
Yunlei Chen ◽  
Xiangbin Cai ◽  
Mi Peng ◽  
...  
Keyword(s):  
Transition Metal ◽  
Selective Hydrogenation ◽  
High Selectivity ◽  
Catalytic Performance ◽  
Transition Metal Catalysts ◽  
Effective Activation ◽  
Earth Abundant ◽  
Unique Structural Feature ◽  
Cu Catalyst ◽  
Excellent Catalytic Performance

Abstract The design of cheap, non-toxic, and earth-abundant transition metal catalysts for selective hydrogenation of alkynes remains a challenge in both industry and academia. Here, we report a new atomically dispersed copper (Cu) catalyst supported on a defective nanodiamond-graphene (ND@G), which exhibits excellent catalytic performance for the selective conversion of acetylene to ethylene, i.e., with high conversion (95%), high selectivity (98%), and good stability (for more than 60 h). The unique structural feature of the Cu atoms anchored over graphene through Cu-C bonds ensures the effective activation of acetylene and easy desorption of ethylene, which is the key for the outstanding activity and selectivity of the catalyst.

scholarly journals Mo-doped boron nitride monolayer as a promising single-atom electrocatalyst for CO2 conversion

2019 ◽  
Vol 10 ◽  
pp. 540-548 ◽  
Author(s):  
Qianyi Cui ◽  
Gangqiang Qin ◽  
Weihua Wang ◽  
Lixiang Sun ◽  
Aijun Du ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Density Functional ◽  
Experimental Studies ◽  
Catalytic Performance ◽  
Reduction Reaction ◽  
Single Atom ◽  
Ambient Conditions ◽  
Functional Theory ◽  
Earth Abundant ◽  
Insight Into

The design of new, efficient catalysts for the conversion of CO2 to useful fuels under mild conditions is urgent in order to reduce greenhouse gas emissions and alleviate the energy crisis. In this work, a series of transition metals (TMs), including Sc to Zn, Mo, Ru, Rh, Pd and Ag, supported on a boron nitride (BN) monolayer with boron vacancies, were investigated as electrocatalysts for the CO2 reduction reaction (CRR) using comprehensive density functional theory (DFT) calculations. The results demonstrate that a single-Mo-atom-doped boron nitride (Mo-doped BN) monolayer possesses excellent performance for converting CO2 to CH4 with a relatively low limiting potential of −0.45 V, which is lower than most catalysts for the selective production of CH4 as found in both theoretical and experimental studies. In addition, the formation of OCHO on the Mo-doped BN monolayer in the early hydrogenation steps is found to be spontaneous, which is distinct from the conventional catalysts. Mo, as a non-noble element, presents excellent catalytic performance with coordination to the BN monolayer, and is thus a promising transition metal for catalyzing CRR. This work not only provides insight into the mechanism of CRR on the single-atom catalyst (Mo-doped BN monolayer) at the atomic level, but also offers guidance in the search for appropriate earth-abundant TMs as electrochemical catalysts for the efficient conversion of CO2 to useful fuels under ambient conditions.

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