Graphdiyne Anchored Ultrafine Ag Nanoparticles for High Efficient and Solvent-Free Catalysis of CO2 Cycloaddition

2021 ◽  
Author(s):  
Chang Liu ◽  
Chao Zhang ◽  
Tongbu Lu
Keyword(s):  
Ag Nanoparticles ◽  
Co2 Reduction ◽  
Value Added ◽  
Solvent Free ◽  
Alternative Route ◽  
Practical Application ◽  
Co2 Utilization ◽  
High Efficient

Apart from photo-/electro-catalytic CO2 reduction, an important alternative route to CO2 utilization is to use this inert molecule as a C1 source to synthesize value-added chemicals, while the practical application...

scholarly journals Electrochemical CO2 Reduction to CO Catalyzed by 2D Nanostructures

Catalysts ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 98 ◽  
Author(s):  
Chaitanya B. Hiragond ◽  
Hwapyong Kim ◽  
Junho Lee ◽  
Saurav Sorcar ◽  
Can Erkey ◽  
...  
Keyword(s):  
Recent Progress ◽  
Co2 Reduction ◽  
Value Added ◽  
Cost Effective ◽  
Metal Chalcogenides ◽  
Two Dimensional ◽  
Practical Application ◽  
Electrochemical Co2 Reduction ◽  
Excellent Activity ◽  
Transition Metal Chalcogenides

Electrochemical CO2 reduction towards value-added chemical feedstocks has been extensively studied in recent years to resolve the energy and environmental problems. The practical application of electrochemical CO2 reduction technology requires a cost-effective, highly efficient, and robust catalyst. To date, vigorous research have been carried out to increase the proficiency of electrocatalysts. In recent years, two-dimensional (2D) graphene and transition metal chalcogenides (TMCs) have displayed excellent activity towards CO2 reduction. This review focuses on the recent progress of 2D graphene and TMCs for selective electrochemical CO2 reduction into CO.

Mechanistic insight into photocatalytic CO2 reduction by Z-scheme g-C3N4/TiO2 heterostructure

2021 ◽  
Author(s):  
Shuo Wang ◽  
Ting-Ting Zhao ◽  
Yu Tian ◽  
Li-Kai Yan ◽  
Zhong-Min Su
Keyword(s):  
Solar Energy ◽  
Co2 Reduction ◽  
Value Added ◽  
Reduction Reaction ◽  
Mechanistic Insight ◽  
High Efficient ◽  
Co2 Reduction Reaction ◽  
Insight Into

Developing high-efficient and selectivity catalysts for CO2 reduction reaction (CO2RR) is significant to convert solar energy to value-added chemicals, Z-scheme heterostructures are promising materials for photocatalytic CO2 reduction due to...

Research on creation and practical application of high-value-added recycling technology for waste plastic

Impact ◽  
2020 ◽  
Vol 2020 (6) ◽  
pp. 15-17
Author(s):  
Shigeru Yao ◽  
Patchiya Phanthong
Keyword(s):  
Collaborative Research ◽  
Chemical Engineering ◽  
Technology Development ◽  
Value Added ◽  
Assistant Professor ◽  
Research Assistant ◽  
Practical Application ◽  
Development Organization ◽  
New Energy ◽  
Environmental Technologies

Professor Shigeru Yao and Dr Patchiya Phanthong are conducting highly collaborative research that is focused on improving mechanical technology for recycling plastics, as well as extending the shelf life of plastics, thus reducing plastic waste. The researchers are based at the Yao Laboratory, in the Department of Chemical Engineering, Fukuoka University, Japan. Phanthong is a Project Research Assistant Professor from the Research Institute for the Creation of Functional and Structural Materials working under the supervision of Yao. In addition to heading up the lab, Yao is also the lead for the NEDO (New Energy and Industrial Technology Development Organization) Advanced Research Program for Energy and Environmental Technologies. In their work, the researchers are collaborating with both industry and academia which is essential to its progression.

scholarly journals Mini-Review on the Synthesis of Furfural and Levulinic Acid from Lignocellulosic Biomass

Processes ◽  
2021 ◽  
Vol 9 (7) ◽  
pp. 1234
Author(s):  
Zhiwei Jiang ◽  
Di Hu ◽  
Zhiyue Zhao ◽  
Zixiao Yi ◽  
Zuo Chen ◽  
...  
Keyword(s):  
Reaction Mechanism ◽  
Lignocellulosic Biomass ◽  
Catalytic System ◽  
Levulinic Acid ◽  
Value Added ◽  
Environmental Issues ◽  
Alternative Route ◽  
Catalytic Systems ◽  
Renewable Biomass ◽  
Platform Chemicals

Efficient conversion of renewable biomass into value-added chemicals and biofuels is regarded as an alternative route to reduce our high dependence on fossil resources and the associated environmental issues. In this context, biomass-based furfural and levulinic acid (LA) platform chemicals are frequently utilized to synthesize various valuable chemicals and biofuels. In this review, the reaction mechanism and catalytic system developed for the generation of furfural and levulinic acid are summarized and compared. Special efforts are focused on the different catalytic systems for the synthesis of furfural and levulinic acid. The corresponding challenges and outlooks are also observed.

scholarly journals Solvent-Free Benzylation of Glycerol by Benzyl Alcohol Using Heteropoly Acid Impregnated on K-10 Clay as Catalyst

Catalysts ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 34
Author(s):  
Devendra P. Tekale ◽  
Ganapati D. Yadav ◽  
Ajay K. Dalai
Keyword(s):  
Heterogeneous Catalysis ◽  
Benzyl Alcohol ◽  
Batch Reactor ◽  
Value Added ◽  
Solvent Free ◽  
Biodiesel Production ◽  
Area Measurement ◽  
Solid Catalyst ◽  
Glycerol Ether ◽  
Insight Into

Value addition to glycerol, the sole co-product in biodiesel production, will lead to reform of the overall biodiesel economy. Different valuable chemicals can be produced from glycerol using heterogeneous catalysis and these valuable chemicals are useful in industries such as cosmetics, pharmaceuticals, fuels, soap, paints, and fine chemicals. Therefore, the conversion of glycerol to valuable chemicals using heterogeneous catalysis is a noteworthy area of research. Etherification of glycerol with alkenes or alcohols is an important reaction in converting glycerol to various value-added chemicals. This article describes reaction of glycerol with benzyl alcohol in solvent-free medium by using a clay supported modified heteropolyacid (HPA), Cs2.5H0.5PW12O40/K-10 (Cs-DTP/K-10) as solid catalyst and its comparison with other catalysts in a batch reactor. Mono-Benzyl glycerol ether (MBGE) was the major product formed in the reaction along with formation of di-benzyl glycerol ether (DBGE). The effects of different parameters were studied to optimize the reaction parameters. This work provides an insight into characterization of Cs2.5H0.5PW12O40/K-10 catalyst by advanced techniques such as surface area measurement, X-ray analysis, ICP-MS, FT-IR, and SEM. Reaction products were characterized and confirmed by using the GCMS method. The kinetic model was developed from an insight into the reaction mechanism. The apparent energy of activation was found to be 18.84 kcal/mol.

Atomic-level engineering of two-dimensional electrocatalysts for CO2 Reduction

Nanoscale ◽  
2021 ◽  
Author(s):  
Wei Shao ◽  
Xiaodong Zhang
Keyword(s):  
Carbon Dioxide ◽  
Fossil Fuels ◽  
Co2 Reduction ◽  
Value Added ◽  
Atomic Level ◽  
Two Dimensional ◽  
Excessive Consumption

Carbon dioxide (CO2) from the excessive consumption of fossil fuels has exhibited a huge threat to the planet’s ecosystem. Electrocatalytic CO2 reduction into value-added chemicals have been regarded as a...

scholarly journals Quasi-graphitic carbon shell-induced Cu confinement promotes electrocatalytic CO2 reduction toward C2+ products

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Ji-Yong Kim ◽  
Deokgi Hong ◽  
Jae-Chan Lee ◽  
Hyoung Gyun Kim ◽  
Sungwoo Lee ◽  
...  
Keyword(s):  
High Efficiency ◽  
Co2 Reduction ◽  
Value Added ◽  
Material Design ◽  
Catalyst System ◽  
Critical Issue ◽  
Reduction Reaction ◽  
Catalyst Design ◽  
Design Strategies ◽  
Faradaic Efficiency

AbstractFor steady electroconversion to value-added chemical products with high efficiency, electrocatalyst reconstruction during electrochemical reactions is a critical issue in catalyst design strategies. Here, we report a reconstruction-immunized catalyst system in which Cu nanoparticles are protected by a quasi-graphitic C shell. This C shell epitaxially grew on Cu with quasi-graphitic bonding via a gas–solid reaction governed by the CO (g) - CO2 (g) - C (s) equilibrium. The quasi-graphitic C shell-coated Cu was stable during the CO2 reduction reaction and provided a platform for rational material design. C2+ product selectivity could be additionally improved by doping p-block elements. These elements modulated the electronic structure of the Cu surface and its binding properties, which can affect the intermediate binding and CO dimerization barrier. B-modified Cu attained a 68.1% Faradaic efficiency for C2H4 at −0.55 V (vs RHE) and a C2H4 cathodic power conversion efficiency of 44.0%. In the case of N-modified Cu, an improved C2+ selectivity of 82.3% at a partial current density of 329.2 mA/cm2 was acquired. Quasi-graphitic C shells, which enable surface stabilization and inner element doping, can realize stable CO2-to-C2H4 conversion over 180 h and allow practical application of electrocatalysts for renewable energy conversion.

An overview of flow cell architectures design and optimization for electrochemical CO2 reduction

2021 ◽  
Author(s):  
Dui Ma ◽  
Ting Jin ◽  
Keyu Xie ◽  
Haitao Huang
Keyword(s):  
Carbon Dioxide ◽  
Global Warming ◽  
Electrochemical Reduction ◽  
Atmospheric Carbon Dioxide ◽  
Co2 Reduction ◽  
Value Added ◽  
Flow Cell ◽  
Design And Optimization ◽  
Electrochemical Co2 Reduction ◽  
Carbon Dioxide Levels

Converting CO2 into value-added fuels or chemical feedstocks through electrochemical reduction is one of the several promising avenues to reduce atmospheric carbon dioxide levels and alleviate global warming. This approach...

Dye-Sensitized Fe-MOF nanosheets as Visible-Light driven photocatalyst for high efficient photocatalytic CO2 reduction

2022 ◽  
Vol 607 ◽  
pp. 1180-1188
Author(s):  
Ahmed Mahmoud Idris ◽  
Xinyan Jiang ◽  
Jun Tan ◽  
Zhenzhi Cai ◽  
Xiaodan Lou ◽  
...  
Keyword(s):  
Visible Light ◽  
Co2 Reduction ◽  
Dye Sensitized ◽  
High Efficient ◽  
Visible Light Driven

Solvent-free liquid-phase selective catalytic oxidation of toluene to benzyl alcohol and benzaldehyde over CeO2-MnOx composite oxides

2022 ◽  
Author(s):  
Gui Chen ◽  
Kuiyi You ◽  
Xiangbo Gong ◽  
Fangfang Zhao ◽  
Zhenpan Chen ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Benzyl Alcohol ◽  
Catalytic Oxidation ◽  
Molecular Oxygen ◽  
Efficient Method ◽  
Value Added ◽  
Solvent Free ◽  
Composite Oxides ◽  
Selective Catalytic Oxidation

An efficient method for highly selective preparation of the high value-added benzyl alcohol (BOL) and benzaldehyde (BAL) from liquid-phase catalytic oxidation of toluene with molecular oxygen over CeO2-MnOx composite oxides...

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