Integrating Materials Design and Operando Spectroscopy for the Development of Next Generation CO2 Reduction and Biomass Valorization Catalytic Systems

2021 ◽  
Vol MA2021-01 (39) ◽  
pp. 1276-1276
Author(s):  
Nikolay Kornienko
Keyword(s):  
Co2 Reduction ◽  
Materials Design ◽  
Next Generation ◽  
Operando Spectroscopy ◽  
Catalytic Systems ◽  
Biomass Valorization

scholarly journals Electrocatalytic CO2 Reduction: From Homogeneous Catalysts to Heterogeneous-Based Reticular Chemistry

Molecules ◽  
2018 ◽  
Vol 23 (11) ◽  
pp. 2835 ◽  
Author(s):  
Abdulhadi Al-Omari ◽  
Zain Yamani ◽  
Ha Nguyen
Keyword(s):  
Materials Science ◽  
Co2 Reduction ◽  
Covalent Bond ◽  
Electrochemical Process ◽  
Homogeneous Catalysts ◽  
Catalytic Systems ◽  
Biological Reduction ◽  
Porous Catalyst ◽  
Practical Applications ◽  
Reduction Of Co2

CO2, emitted mainly from fossil fuel combustion, is one of the major greenhouse gases. CO2 could be converted into more valuable chemical feedstocks including CO, HCOOH, HCHO, CH3OH, or CH4. To reduce CO2, catalysts were designed and their unique characteristics were utilized based on types of reaction processes, including catalytic hydrogenation, complex metal hydrides, photocatalysis, biological reduction, and electrochemical reduction. Indeed, the electroreduction method has received much consideration lately due to the simple operation, as well as environmentally friendly procedures that need to be optimized by both of the catalysts and the electrochemical process. In the past few decades, we have witnessed an explosion in development in materials science—especially in regards to the porous crystalline materials based on the strong covalent bond of the organic linkers containing light elements (Covalent organic frameworks, COFs), as well as the hybrid materials that possess organic backbones and inorganic metal-oxo clusters (Metal-organic frameworks, MOFs). Owing to the large surface area and high active site density that belong to these tailorable structures, MOFs and COFs can be applied to many practical applications, such as gas storage and separation, drug release, sensing, and catalysis. Beyond those applications, which have been abundantly studied since the 1990s, CO2 reduction catalyzed by reticular and extended structures of MOFs or COFs has been more recently turned to the next step of state-of-the-art application. In this perspective, we highlight the achievement of homogeneous catalysts used for CO2 electrochemical conversion and contrast it with the advances in new porous catalyst-based reticular chemistry. We then discuss the role of new catalytic systems designed in light of reticular chemistry in the heterogeneous-catalyzed reduction of CO2.

Mechanistic Insights on CO2 Reduction Reactions at Platinum/[BMIM][BF4] Interfaces from In Operando Spectroscopy

ACS Catalysis ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 6284-6292 ◽  
Author(s):  
Andre Kemna ◽  
Natalia García Rey ◽  
Björn Braunschweig
Keyword(s):  
Co2 Reduction ◽  
Operando Spectroscopy ◽  
Reduction Reactions ◽  
In Operando

High refractive index materials design for the next generation ArF immersion lithography

2008 ◽  
Author(s):  
Taiichi Furukawa ◽  
Takanori Kishida ◽  
Kyouyuu Yasuda ◽  
Tsutomu Shimokawa ◽  
Zhi Liu ◽  
...  
Keyword(s):  
Refractive Index ◽  
Materials Design ◽  
High Refractive Index ◽  
Next Generation ◽  
Immersion Lithography

scholarly journals Overview of transition metal-based composite materials for supercapacitor electrodes

2020 ◽  
Vol 2 (12) ◽  
pp. 5516-5528
Author(s):  
Mingjin Cui ◽  
Xiangkang Meng
Keyword(s):  
Composite Materials ◽  
Transition Metal ◽  
Electrode Materials ◽  
Materials Design ◽  
Next Generation

Illustration of transition metal-based electrode materials (oxides, sulfides, and phosphides) for supercapacitors. Recent researches, current challenges, and next generation materials design will be discussed.

Surface Chemistry Modulates CO2 Reduction Reaction Intermediates on Silver Nanoparticle Electrocatalysts

2020 ◽  
Author(s):  
Tomos Harris ◽  
Daniel Chartrand ◽  
Nina Heidary ◽  
Laura C. Pardo-Perez ◽  
Khoa Ly ◽  
...  
Keyword(s):  
Surface Chemistry ◽  
Ag Nanoparticles ◽  
Surface Reaction ◽  
Co2 Reduction ◽  
Catalytic Efficiency ◽  
Reduction Reaction ◽  
Zeolitic Imidazolate Framework ◽  
Catalytic Systems ◽  
Raman Spectroscopic ◽  
Key Aspects

<div>Electrocatalytic reduction of carbon dioxide (CO2R) to fuels and chemicals is a pressing scientific</div><div>and engineering challenge that is, in part, hampered by a lack of understanding of the surface reaction</div><div>mechanism, even for relatively simple systems. While many efforts have been dedicated to promoting CO2R</div><div>on catalytic surfaces by tuning composition, morphology, and defects, the role of the reaction environment</div><div>around the active site, and how this can be leveraged to modulate CO2R, is less clear. To this end, we</div><div>focused on a model CO2R catalyst, Ag nanoparticles, and carried out a combined electrocatalytic and</div><div>operando Raman spectroscopic investigation of CO2R on their surfaces. Bare Ag and chemically modified</div><div>Ag nanoparticles were investigated to understand how the surface reaction environment dictates</div><div>intermediate binding and catalytic efficiency en route to CO generation. The results revealed that the</div><div>primary product on Ag is CO, which is formed through a doubly-bound CObridge configuration. In contrast,</div><div>electrografted imidazole and polyvinylpyrrolidone (PVP)-coated Ag feature CO in a singly-bound COatop</div><div>configuration on their surfaces, whereas porous zeolitic-imidazolate framework-coated Ag was observed</div><div>to bind both CObridge and COatop. Further, another function of the Ag surface modifications is to dictate the</div><div>type of Ag surface sites which form Ag-C bonds with CO2R intermediates. Through analysis of the of</div><div>electrochemical and spectroscopic data, we deduce which key aspects of CO2R on Ag surface render a</div><div>CO2R system efficient and show how surface chemistry dictates diverging CO2R surface reaction</div><div>mechanisms. The insights gained here are important as they provide the community with a greater</div><div>understanding of heterogeneous CO2R and can be further translated to a number of catalytic systems. </div>

CO2 Reduction on Single-Atom Ir Catalysts with Chemical Functionalization

2022 ◽  
Author(s):  
Zheng-Zhe Lin ◽  
Xi-Mei Li ◽  
Xin-Wei Chen ◽  
Xi Chen
Keyword(s):  
Co2 Reduction ◽  
Catalytic Performance ◽  
Single Atom ◽  
Electrochemical Reactions ◽  
Catalytic Systems ◽  
Chemical Functionalization ◽  
Metal Atoms

As promising catalytic systems, single-atom catalysts (SACs) demonstrate improved catalytic performance for electrochemical reactions. However, the pinning of metal atoms on surfaces usually depends on the adsorption on defects. In...

scholarly journals Towards the Valorization of Biomass to 5-Hydroxymethylfurfural: A Promising Biochemical and Biofuel Feedstock

KIMIKA ◽  
2019 ◽  
Vol 30 (1) ◽  
pp. 4-12
Author(s):  
Rey Joseph J. Ganado ◽  
Francisco, Jr. C. Franco
Keyword(s):  
Lignocellulosic Biomass ◽  
Large Scale ◽  
Heating System ◽  
Building Blocks ◽  
Scale Production ◽  
Catalytic Systems ◽  
Biomass Valorization ◽  
Heating Systems ◽  
Large Scale Production ◽  
Renewable Feedstock

The increasing oil demand and exhaustion of reserves have initiated stimulus to search for new and sustainable sources of fuels and fine chemicals. Lignocellulosic biomass turned out to be a promising and renewable feedstock for these applications. 5-hydroxymethylfurfural (HMF) is one of the most promising building blocks for bio-based chemicals that can be derived from lignocellulosic biomass which can be potentially applied for large scale production. However, one of the main factors holding its transition is the need for sustainable, green and financially feasible processes. This review provides the studies made towards catalytic systems used for HMF production, as well as the various solvents and heating system applied. Research efforts to unravel the interactions among catalysts, solvents, and heating systems are encouraged, thereby engineering a synergistic conversion system for biomass valorization.

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