Hierarchically multifunctional integrated catalyst with intimate and synergistic active sites for one-pot tandem catalysis

2021 ◽  
Author(s):  
Yao Yao ◽  
Kexin Huang ◽  
Yi Liu ◽  
Tingting Luo ◽  
Ge Tian ◽  
...  
Keyword(s):  
Active Sites ◽  
Catalytic Process ◽  
Tandem Reaction ◽  
Tandem Catalysis ◽  
One Pot ◽  
Multifunctional Catalyst ◽  
Typical Process

As a typical process intensified strategy, tandem reaction driven by multifunctional catalyst is a paragon of the green catalytic process. Two or more active sites are usually required and their...

One-pot atom-efficient synthesis of bio-renewable polyesters and cyclic carbonates through tandem catalysis

2015 ◽  
Vol 51 (40) ◽  
pp. 8504-8507 ◽  
Author(s):  
Fan Jia ◽  
Xiaoyu Chen ◽  
Yan Zheng ◽  
Yusheng Qin ◽  
Youhua Tao ◽  
...  
Keyword(s):  
Tandem Reaction ◽  
Cyclic Carbonates ◽  
Tandem Catalysis ◽  
Efficient Synthesis ◽  
One Pot ◽  
One Pot Synthesis ◽  
Salen Complexes ◽  
High Yields ◽  
First Time

One-pot synthesis of well-defined bio-renewable polyesters and cyclic carbonates in high yields was successfully realized for the first time by way of a tandem reaction using metal salen complexes as catalysts.

scholarly journals Directly converting CO2 into a gasoline fuel

2017 ◽  
Vol 8 (1) ◽  
Author(s):  
Jian Wei ◽  
Qingjie Ge ◽  
Ruwei Yao ◽  
Zhiyong Wen ◽  
Chuanyan Fang ◽  
...  
Keyword(s):  
Crucial Role ◽  
Active Sites ◽  
Catalytic Conversion ◽  
Acid Sites ◽  
Liquid Fuels ◽  
Tandem Reaction ◽  
Direct Production ◽  
Industrial Catalyst ◽  
Highly Efficient ◽  
Multifunctional Catalyst

Abstract The direct production of liquid fuels from CO2 hydrogenation has attracted enormous interest for its significant roles in mitigating CO2 emissions and reducing dependence on petrochemicals. Here we report a highly efficient, stable and multifunctional Na–Fe3O4/HZSM-5 catalyst, which can directly convert CO2 to gasoline-range (C5–C11) hydrocarbons with selectivity up to 78% of all hydrocarbons while only 4% methane at a CO2 conversion of 22% under industrial relevant conditions. It is achieved by a multifunctional catalyst providing three types of active sites (Fe3O4, Fe5C2 and acid sites), which cooperatively catalyse a tandem reaction. More significantly, the appropriate proximity of three types of active sites plays a crucial role in the successive and synergetic catalytic conversion of CO2 to gasoline. The multifunctional catalyst, exhibiting a remarkable stability for 1,000 h on stream, definitely has the potential to be a promising industrial catalyst for CO2 utilization to liquid fuels.

scholarly journals Spinel of Nickel-Cobalt Oxide with Rod-Like Architecture as Electrocatalyst for Oxygen Evolution Reaction

Materials ◽  
2020 ◽  
Vol 13 (18) ◽  
pp. 3918
Author(s):  
Anna Dymerska ◽  
Wojciech Kukułka ◽  
Marcin Biegun ◽  
Ewa Mijowska
Keyword(s):  
Cobalt Oxide ◽  
Oxygen Evolution ◽  
Active Sites ◽  
Solvothermal Reaction ◽  
Step Method ◽  
One Pot ◽  
Widespread Application ◽  
Nickel Cobalt ◽  
Slow Kinetics ◽  
Nickel Cobalt Oxide

The renewable energy technologies require electrocatalysts for reactions, such as the oxygen and/or hydrogen evolution reaction (OER/HER). They are complex electrochemical reactions that take place through the direct transfer of electrons. However, mostly they have high over-potentials and slow kinetics, that is why they require electrocatalysts to lower the over-potential of the reactions and enhance the reaction rate. The commercially used catalysts (e.g., ruthenium nanoparticles—Ru, iridium nanoparticles—Ir, and their oxides: RuO2, IrO2, platinum—Pt) contain metals that have poor stability, and are not economically worthwhile for widespread application. Here, we propose the spinel structure of nickel-cobalt oxide (NiCo2O4) fabricated to serve as electrocatalyst for OER. These structures were obtained by a facile two-step method: (1) One-pot solvothermal reaction and subsequently (2) pyrolysis or carbonization, respectively. This material exhibits novel rod-like morphology formed by tiny spheres. The presence of transition metal particles such as Co and Ni due to their conductivity and electron configurations provides a great number of active sites, which brings superior electrochemical performance in oxygen evolution and good stability in long-term tests. Therefore, it is believed that we propose interesting low-cost material that can act as a super stable catalyst in OER.

Both sites must turn over in tandem catalysis: Lessons from one-pot CO2 capture and hydrogenation

2021 ◽  
Author(s):  
Elizabeth A. K. Wilson ◽  
Shawn C. Eady ◽  
Trent Silbaugh ◽  
Levi T. Thompson ◽  
Mark A. Barteau
Keyword(s):  
Co2 Capture ◽  
Tandem Catalysis ◽  
One Pot ◽  
Turn Over

ChemInform Abstract: Copper-Assisted/Copper-Free Synthesis of Functionalized Dibenzo[b,f]oxepins and Their Analogues via a One-Pot Tandem Reaction.

ChemInform ◽  
2013 ◽  
Vol 44 (28) ◽  
pp. no-no
Author(s):  
Yuqin Wang ◽  
Yanhong Chen ◽  
Qian He ◽  
Yuyuan Xie ◽  
Chunhao Yang
Keyword(s):  
Tandem Reaction ◽  
One Pot

One-pot production of jet fuels from fatty acids and vegetable oils in biphasic tandem catalytic process

Fuel ◽  
2021 ◽  
pp. 121060
Author(s):  
Chuhua Jia ◽  
Cheng Zhang ◽  
Shaoqu Xie ◽  
Wanli Zhang ◽  
Ziling Wang ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Vegetable Oils ◽  
Catalytic Process ◽  
Jet Fuels ◽  
One Pot

One-pot tandem catalysis over Pd@MIL-101: boosting the efficiency of nitro compound hydrogenation by coupling with ammonia borane dehydrogenation

2015 ◽  
Vol 51 (52) ◽  
pp. 10419-10422 ◽  
Author(s):  
Qihao Yang ◽  
Yu-Zhen Chen ◽  
Zhiyong U. Wang ◽  
Qiang Xu ◽  
Hai-Long Jiang
Keyword(s):  
Nitro Compound ◽  
Ammonia Borane ◽  
Nitro Compounds ◽  
Tandem Catalysis ◽  
One Pot

The hydrogenation efficiency of nitro compounds is greatly boosted by coupling with ammonia borane dehydrogenation over rationally synthesized Pd@MIL-101 with Pd NPs in ∼3 nm.

Petal-shaped MOF assembled with gold nanocage and urate oxidase used as artificial enzyme nanohybrid for tandem catalysis and dual-channel biosensing

Nanoscale ◽  
2021 ◽  
Author(s):  
Zejun Sun ◽  
Yujiao Sun ◽  
Meng Yang ◽  
Hui Jin ◽  
Rijun Gui
Keyword(s):  
Metal Organic Frameworks ◽  
Urate Oxidase ◽  
Tandem Catalysis ◽  
Artificial Enzyme ◽  
One Pot ◽  
Mild Conditions ◽  
Dual Channel ◽  
Metal Organic

A facile one-pot precipitation was employed to prepare a petal-shaped hybrid in mild conditions. The hybrid is composed of urate oxidase (UOx) encapsulated into zeolite-like metal-organic frameworks (MOF) with doping...

ChemInform Abstract: One-Pot Synthesis of 3,4-Dihydropyridin-2-ones via Tandem Reaction of Blaise Reaction Intermediate and Acrylic Ester.

ChemInform ◽  
2016 ◽  
Vol 47 (18) ◽  
Author(s):  
Tuanjie Meng ◽  
Lantao Liu ◽  
Huiyi Jia ◽  
Lifeng Ren ◽  
Cuilan Feng ◽  
...  
Keyword(s):  
Tandem Reaction ◽  
One Pot ◽  
Reaction Intermediate ◽  
One Pot Synthesis ◽  
Acrylic Ester

ChemInform Abstract: An Electrochemical Tandem Reaction: One-Pot Synthesis of Homoallylic Alcohols from Alcohols in Aqueous Media.

ChemInform ◽  
2011 ◽  
Vol 42 (7) ◽  
pp. no-no
Author(s):  
Li Zhang ◽  
Zhenggen Zha ◽  
Zhenlei Zhang ◽  
Yunfeng Li ◽  
Zhiyong Wang
Keyword(s):  
Aqueous Media ◽  
Tandem Reaction ◽  
One Pot ◽  
One Pot Synthesis ◽  
Homoallylic Alcohols
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