Abstract. Reducing CO 2 is a challenging chemical transformation that biology solves easily, with high efficiency and specificity. In particular, formate dehydrogenases are of great interest since they reduce CO 2 to formate, a valuable chemical fuel and hydrogen storage compound. The metal-dependent formate dehydrogenases of prokaryotes can ...For Librarians & Account Managers. ACS & Open Access. Matthew J. McKay. [email protected] Having access to mild and operationally simple techniques for attaining carbohydrate targets will be necessary to facilitate advancement in biological, medicinal, and pharmacological research. Even with the abundance of elegant reports for generating ... A general iron-catalyzed methylation has been developed using methanol as a C1 building block. This borrowing hydrogen approach employs a Knölker-type (cyclopentadienone)iron carbonyl complex as catalyst (2 mol %) and exhibits a broad reaction scope. A variety of ketones, indoles, oxindoles, amines, and sulfonamides undergo mono- or dimethylation …Formation and evolution of active hydrogen species from H2 on a metal oxide is of great importance in many hydrogenation reactions, while understanding the nature of surface hydrogen species remains a great challenge. Herein, high-vacuum-based transmission infrared spectroscopy coupled with temperature-programmed desorption …For Librarians & Account Managers. ACS & Open Access. Matthew J. McKay. [email protected] Having access to mild and operationally simple techniques for attaining carbohydrate targets will be necessary to facilitate advancement in biological, medicinal, and pharmacological research. Even with the abundance of elegant reports for generating ... Steric hindrance modification-based pocket reshaping is an effective approach for enzyme–substrate acceptance evolution. However, previous studies were limited to using the unidirectional acceptance trait of bulky substrates as a measure of fitness. In this endeavor, we conducted steric hindrance modification-based bidirectional …The Investigation of a Switchable Iridium Catalyst for the Hydrogenation of Amides: A Case Study of C–O Versus C–N Bond Scission. Anne K. Ravn. and. Nomaan M. Rezayee *. ACS Catalysis 2022, 12, 19, 11927-11933 (Letter) Publication Date (Web): September 16, 2022. Abstract.Selective oxidation of H2S to sulfur is an efficient process for industrial applications and environmental requirement to reduce the residual H2S in the Claus technology to an ultralow content (<0.1 ppm) before releasing the off-gas into the atmosphere. Recently, numerous research studies have been devoted to the development of highly active, selective and stable catalysts for such fields of ... If you're visiting Palma, Mallorca, you'll want to check out this AC Hotel property for its prime location, good service, and great value. We may be compensated when you click on p...To highlight some of the many contributions that helped to catapult ACS Catalysis to becoming one of the premier catalysis journals, we have overviewed …When it comes to installing a new AC unit, many homeowners focus solely on the upfront cost of the equipment itself. However, there are several hidden costs associated with a new A...Journal Scope. ACS Catalysis is dedicated to publishing original research on heterogeneous catalysis, molecular catalysis, and biocatalysis.Wide-ranging coverage includes life sciences, organometallics and synthesis, photochemistry and electrochemistry, drug discovery and synthesis, materials science, environmental protection, polymer discovery and synthesis, and energy and fuels. Dry reforming of methane (DRM) can convert greenhouse gases (CO2 and CH4) into value-added syngas (CO and H2), which is one of the promising approaches to achieve carbon neutrality. Designing coking resistant catalysts is still a challenge for an efficient DRM reaction. Here, we developed an efficient binary Mo–Ni catalyst through elucidating the promotional role of Mo in boosting the coking ... Learn how catalysis relates to green chemistry and how to use it to reduce waste and energy consumption. Explore the focus principles, examples and resources of greener …Herein, we describe the design and development a new nickel pincer complex that catalyzes the direct coupling of primary alkyl halides with terminal alkynes at ...1,3,4-Oxadiazolines can be activated by triplet energy transfer catalysis under visible-light irradiation. The generated carbenes react with electron-poor olefins, giving valuable spirocyclopropanes. Mechanistic investigations, both theoretical and experimental, uncover plausible pathways and highlight the importance of the triplet energy transfer steps. View …Chiral oxazolidinones are a class of important heterocyclic compounds in pharmaceutical chemistry due to their biological activity. Halohydrin dehalogenase-catalyzed epoxide ring-opening reaction with cyanate offers an attractive approach to the synthesis of chiral oxazolidinones, but the α/β-regioselectivity and stereoselectivity are …A Virtual Issue focused on “Blurring the Lines Between Catalysis Subdisciplines.” ACS Catalysis continues to strive for topical breadth across …The imine reductase AoIRED from Amycolatopsis orientalis (Uniprot R4SNK4) catalyzes the NADPH-dependent reduction of a wide range of prochiral imines and iminium ions, predominantly with (S)-selectivity and with ee’s of up to >99%. AoIRED displays up to 100-fold greater catalytic efficiency for 2-methyl-1-pyrroline (2MPN) compared to other IREDs, …Jan 29, 2021 · Synergistic effects have been discussed extensively in bimetallic heterogeneous catalysis, but it remains unclear how the effects function at the atomic scale. Here, we report a dual single-atom catalyst (DSAC) Ir1Mo1/TiO2 displaying much greater catalytic chemoselectivity (>96%, at 100% conversion) than comparable single-atom catalysts (SACs) Ir1/TiO2 (38%, at 87% conversion) and Mo1/TiO2 (no ... The persistently increasing energy consumption and the low abundance of conventional fuels have raised serious concerns all over the world. Thus, the development of technology for clean-energy production has become the major research priority worldwide. The globalization of advanced energy conversion technologies like rechargeable metal–air …CO hydrogenation to isobutyl alcohol is a promising route for CO transformation to high value-added products. However, the formation mechanism of isobutyl alcohol is complex, and its synthesis requires complex catalysts and harsh reaction conditions, which hinders the identification of active sites. Herein, we efficiently …The imine reductase AoIRED from Amycolatopsis orientalis (Uniprot R4SNK4) catalyzes the NADPH-dependent reduction of a wide range of prochiral imines and iminium ions, predominantly with (S)-selectivity and with ee’s of up to >99%. AoIRED displays up to 100-fold greater catalytic efficiency for 2-methyl-1-pyrroline (2MPN) compared to other IREDs, …Production of formate or CO from electrochemical CO2 reduction reactions (eCO2RRs) represents a promising way to utilize CO2 with future low-carbon electricity to produce value-added chemicals and fuels. Herein, a series of Cu–Sn composite catalysts were designed for eCO2RRs. The reduction products could be tuned selectively from …This protocol provides a straightforward, efficient approach to synthetically important indole-containing cyclic ketones with an α-chiral center and features ...The persistently increasing energy consumption and the low abundance of conventional fuels have raised serious concerns all over the world. Thus, the development of technology for clean-energy production has become the major research priority worldwide. The globalization of advanced energy conversion technologies like rechargeable metal–air …The recent explosive growth in research on catalysis by supported single metal atoms proves the scientific interest in this new frontier of heterogeneous catalysis. A supported single-atom catalyst (SAC) contains only isolated individual atoms dispersed on, and/or coordinated with, the surface atoms of an appropriate support. SACs not only …Metal hydrides (MHs) are featured for their reversible hydrogen absorption and desorption properties, which are conventionally used as hydrogen storage materials. …May 2, 2022 · ACS Catalysis (2021), 11 (14), 8929-8941 CODEN: ACCACS; ISSN: 2155-5435. ( American Chemical Society ) Developing a cost-effective and highly efficient electrocatalyst with superior catalytic activity is crucial for clean and green water splitting, including the hydrogen evolution reaction (HER), the oxygen evolution reaction (OER), and the ... DC current is direct current, which means electricity only flows in one direction; AC current is alternating current, which means it flows in both directions. Batteries run on DC c...The persistently increasing energy consumption and the low abundance of conventional fuels have raised serious concerns all over the world. Thus, the development of technology for clean-energy production has become the major research priority worldwide. The globalization of advanced energy conversion technologies like rechargeable metal–air …Production of formate or CO from electrochemical CO2 reduction reactions (eCO2RRs) represents a promising way to utilize CO2 with future low-carbon electricity to produce value-added chemicals and fuels. Herein, a series of Cu–Sn composite catalysts were designed for eCO2RRs. The reduction products could be tuned selectively from …ACS on Campus. The American Chemical Society’s premier outreach program. Launched in 2010, we've hosted programming at hundreds of institutions around the world, bringing the world’s leaders in chemistry, publishing, research, science communication and career development right to your doorstep.Catalysis is crucial to the successful conversion of carbon dioxide into value-added products. Here, we provide a review on chemical and biological systems for carbon dioxide conversion directed toward the readers of ACS Catalysis, which focuses on providing a general perspective on the field, rather than technical details. We discuss …In this Perspective, we highlight the main challenges to be addressed in the development of heterogeneous catalysts for the direct functionalization of methane. Along with our personal view on current developments in this field, we outline the main mechanistic, engineering, and catalyst design issues that have hampered implementation of new technologies and …Aug 5, 2022 · Metal–organic frameworks (MOFs) and coordination polymers (CPs) are potential candidates for high-performance photocatalysts because of their high tunability of electronic and structural properties. For example, MOFs and CPs having a high specific surface area (∼1000 m2 g–1) have been applied as visible-light-driven photocatalysts for CO2 reduction and water splitting. Herein, we show a ... Dec 12, 2016 · The combination of sequential biocatalytic reactions, via non-natural synthetic cascades, is a rapidly developing field and leads to the generation of complex valuable chemicals from simple precursors. As the toolbox of available biocatalysts continues to expand, so do the options for biocatalytic retrosynthesis of a target molecule, leading to alternative routes employing enzymatic ... ACS Catalysis is dedicated to publishing original research on heterogeneous catalysis, homogeneous catalysis, and bio-catalysis. Application coverage includes life sciences, drug discovery ... Read research published in the ACS Catalysis Vol. 13 Issue 6 on ACS Publications, a trusted source for peer-reviewed journals. DC current is direct current, which means electricity only flows in one direction; AC current is alternating current, which means it flows in both directions. Batteries run on DC c...ACS Catalysis (2017), 7 (2), 1227-1243 CODEN: ACCACS; ISSN: 2155-5435. (American Chemical Society) This review covers the advance in the development of Fe, Co, and Ni catalysts for the alkene hydrosilylation reaction, as well as the related dehydrogenative silylation reaction. The hydrosilylation of alkene is an important reaction …Mar 7, 2023 · Fischer-Tropsch synthesis (FTS) provides a nonpetroleum route for the production of value-added α-olefins from syngas. However, regulating the product distribution to promote the formation of long-chain α-olefins while maintaining low selectivity to C1 byproducts (CO2 and CH4) remains a great challenge. Herein, a series of alkali metal-promoted Ru/SiO2 catalysts were synthesized to ... Applied Catalysis B: Environment and Energy warmly welcomes original, innovative, and high-impact contributions within the realm encompassing thermo-, electro-, and photocatalysis to advance clean energy and provide sustainable environmental solutions. We encourage submissions that explore: Fundamental and applied catalysis research, …In today’s digital age, having a strong online presence is crucial for businesses, especially for ace online stores. With the increasing popularity of e-commerce, it’s important to...Jul 18, 2022 · Plastic waste triggers a series of concerns because of its disruptive impact on the environment and ecosystem. From the point of view of catalysis, however, end-of-life plastics can be seen as an untapped feedstock for the preparation of value-added products. Thus, the development of diversified catalytic approaches for plastics valorization is urgent. Previous reviews of this field have ... Don't fear your next interview—conquer it. This post originally appeared at LinkedIn. Follow the author here. Most people’s biggest job-hunting fear is being put on the spot by odd...Here, we proposed a computation-driven strategy to optimize structures of enzymes via simulation-based iterative saturation mutagenesis (ISM), aiming to stabilize the spatial effects of the TS with a TSA as a placeholder. This approach was applied to redesign structures of chitinase in order to increase its catalytic activity. After three ...3′-Phosphoadenosine-5′-phosphosulfate (PAPS) is a universal sulfate group donor for all biological sulfation reactions in living organisms. Ambitions to biomanufacture sulfate-containing compounds such as heparin and chondroitin sulfate also promote the study on PAPS in vitro synthesis. However, the established enzymatic synthesis of …When you’re in the market for an air conditioning unit (AC) you should be aware that all HVAC brands are not equal in quality and reliability. This guide highlights four AC brands ...A general iron-catalyzed methylation has been developed using methanol as a C1 building block. This borrowing hydrogen approach employs a Knölker-type (cyclopentadienone)iron carbonyl complex as catalyst (2 mol %) and exhibits a broad reaction scope. A variety of ketones, indoles, oxindoles, amines, and sulfonamides undergo mono- or dimethylation …This article describes the discovery and development of a palladium-catalyzed asymmetric C–H olefination of 2-hydroxybiaryls. The strategy allows a direct assembly of optically active, axially chiral 2-substituted-2′-hydroxybiaryls from readily available precursors and demonstrates that the native hydroxy unit of the substrates can work as an efficient …CO2 hydrogenation over Fe-based catalysts is a promising pathway to mitigate emissions of this greenhouse gas and provides a possibility for crude-oil-free production of chemicals and fuels. Understanding of (i) the role of crystalline phases or/and surface species in the working catalysts, (ii) the factors affecting their formation under …The latest published issue of ACS Catalysis. See all articles . Interfacial Spontaneous Reduction Strategy to Synthesize Low-Valent Pt Single-Atom Catalyst for Boosting Hydrosilylation Mar 25, 2022 · ACS Catalysis (2017), 7 (5), 3540-3547 CODEN: ACCACS; ISSN: 2155-5435. ( American Chemical Society ) Developing highly efficient and affordable noble-metal-free catalysts toward the hydrogen evolution reaction (HER) is an important step toward the economical prodn. of hydrogen. Enzymatic catalysis is a complex process that can involve multiple conformations of the enzyme:substrate complex and several competitive reaction pathways, resulting in a multi-dimensional free energy landscape. The study of enzymatic activity often requires deep knowledge of the system to establish the catalytic mechanism and identify …We have developed an efficient gold-catalyzed C–O cross-coupling reaction of (hetero)aryl iodides with primary and secondary alcohols via an AuI–AuIII catalytic ...Here, we proposed a computation-driven strategy to optimize structures of enzymes via simulation-based iterative saturation mutagenesis (ISM), aiming to stabilize the spatial effects of the TS with a TSA as a placeholder. This approach was applied to redesign structures of chitinase in order to increase its catalytic activity. After three ...Threonine aldolase (TA)-catalyzed aldol condensation is a powerful tool for C–C bond formation under mild conditions, but the low Cβ-stereoselectivity has hampered its wide application. A stepwise visual screening method was developed to measure the activity and stereoselectivity of threonine aldolase-catalyzed aldol condensation by …An efficient method for the construction of 12-membered heterocycles with a trifluoromethyl group (3) was achieved via a nondecarboxylative Pd-catalyzed [6 + 6] annulation of six-membered trifluoromethyl benzo[d][1,3]oxazinones (1) with four-membered vinyl oxetanes (2). A variety of relatively large heterocycles 3 featuring a stereogenic …A better fundamental understanding of the plasma-catalyst interaction and the reaction mechanism is vital for optimizing the design of catalysts for ammonia synthesis by plasma-catalysis. In this work, we report on a hybrid plasma-enhanced catalytic process for the synthesis of ammonia directly from N2 and H2 over transition metal catalysts (M/Al2O3, …DC current is direct current, which means electricity only flows in one direction; AC current is alternating current, which means it flows in both directions. Batteries run on DC c...Jan 15, 2019 · Metal organic frameworks (MOFs) have drawn wide attention as potential catalysts, offering high densities of catalytic sites in high-area porous solids, some with stabilities at high temperatures. The field is at an early stage, characterized by numerous discoveries and novel demonstrations of catalytic properties associated with the crystalline structures of MOFs, but applications of MOFs as ... Jan 29, 2021 · Synergistic effects have been discussed extensively in bimetallic heterogeneous catalysis, but it remains unclear how the effects function at the atomic scale. Here, we report a dual single-atom catalyst (DSAC) Ir1Mo1/TiO2 displaying much greater catalytic chemoselectivity (>96%, at 100% conversion) than comparable single-atom catalysts (SACs) Ir1/TiO2 (38%, at 87% conversion) and Mo1/TiO2 (no ... ACS Catalysis 2024, Article ASAP. Di Chao, Tong-Xin Liu, Pengling Zhang, Shilu Xia, Panting Yang, Mengjiao Huang, Qingfeng Liu, Guisheng Zhang . Interrupted N-Heterocyclic Carbene-Catalyzed Radical Coupling Strategy: A Versatile Platform for Alkylation and Arylation of [60]Fullerene. Achieving high activity and selectivity of multicarbon products in the CO2 reduction reaction (CO2RR) on Cu-based electrocatalysts remains challenging due to the limited concentration of local OH–, sluggish CO2 diffusion, and competitive hydrogen evolution reaction. Herein, we report aerophilic nanocomposites of hydrophobic SiO2 …For those looking to become a bus driver, passing the class exams is an important part of the process. Bus driver class exams cover a variety of topics, from driving laws and regul...Herein, we describe the design and development a new nickel pincer complex that catalyzes the direct coupling of primary alkyl halides with terminal alkynes at ...The key of syngas (a mixture of CO and H2) chemistry lies in controlled dissociative activation of CO and C–C coupling. We demonstrate here that a bifunctional catalyst of partially reducible manganese oxide in combination with SAPO-34 catalyzes the selective formation of light olefins, which validates the generality of the OX-ZEO (oxide …Increasing demand for finding eco-friendly and everlasting energy sources is now totally depending on fuel cell technology. Though it is an eco-friendly way of producing energy for the urgent requirements, it needs to be improved to make it cheaper and more eco-friendly. Although there are several types of fuel cells, the hydrogen (H2) and oxygen (O2) fuel …The rational design of high-performance electrocatalysts requires a detailed understanding of dynamic changes in catalyst properties, including oxidation states, surface area, and morphology under realistic working conditions. Oxide-derived Cu catalysts exhibit a remarkable selectivity toward multicarbon products for the electrochemical CO …Are you looking to become a paraprofessional? The paraprofessional test is an important part of the process. It is designed to assess your knowledge and skills in order to determin...Read research published in the ACS Catalysis Vol. 13 Issue 6 on ACS Publications, a trusted source for peer-reviewed journals. Jan 29, 2021 · Synergistic effects have been discussed extensively in bimetallic heterogeneous catalysis, but it remains unclear how the effects function at the atomic scale. Here, we report a dual single-atom catalyst (DSAC) Ir1Mo1/TiO2 displaying much greater catalytic chemoselectivity (>96%, at 100% conversion) than comparable single-atom catalysts (SACs) Ir1/TiO2 (38%, at 87% conversion) and Mo1/TiO2 (no ... In this work, we develop a synthetic route to synthesize and integrate thin mesoporous silica nanowires into three-dimensional (3D) networks. Hierarchical pore .... Professor Mary P. Watson from the UniversiFormation and evolution of active hydrogen spec Achieving high activity and selectivity of multicarbon products in the CO2 reduction reaction (CO2RR) on Cu-based electrocatalysts remains challenging due to the limited concentration of local OH–, sluggish CO2 diffusion, and competitive hydrogen evolution reaction. Herein, we report aerophilic nanocomposites of hydrophobic SiO2 …1,3,4-Oxadiazolines can be activated by triplet energy transfer catalysis under visible-light irradiation. The generated carbenes react with electron-poor olefins, giving valuable spirocyclopropanes. Mechanistic investigations, both theoretical and experimental, uncover plausible pathways and highlight the importance of the triplet energy transfer steps. View … Formation and evolution of active hydrogen species from H2 on a metal Rhenium-Catalyzed Dehydration and Deoxydehydration of Alcohols and Polyols: Opportunities for the Formation of Olefins from Biomass. Suresh Raju. , Marc-Etienne … The latest published issue of ACS Catalysis. See a...
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