Category: 14347-78-5

Chemistry is traditionally divided into organic and inorganic chemistry. The former is the study of compounds containing at least one carbon-hydrogen bonds. 14347-78-5, Name is (R)-(2,2-Dimethyl-1,3-dioxolan-4-yl)methanol, molecular formula is C6H12O3, belongs to copper-catalyst compound, is a common compound. In a patnet, author is Aghbash, Khadijeh Ojaghi, once mentioned the new application about 14347-78-5, Recommanded Product: (R)-(2,2-Dimethyl-1,3-dioxolan-4-yl)methanol.

Gold nanoparticle stabilized dithiocarbamate functionalized magnetite carbon as promise clean nanocatalyst for A(3)-coupling organic transformation

A novel, efficient, and core/shell nanosphere catalyst (Fe3O4@C-NHCS-Au-0) was successfully synthesized with a movable magnetite core encapsulated in a carbon shell. It was modified using APTES (3-aminopropyltriethoxysilane) to convert dithiocarbamate (DTC) functional group in the carbon surface though postmodification with CS2 (carbon disulfide). Au-0-nanoparticles were decorated via DTC binder to improve the catalytic activity. It was applied as a high-efficiency nanocatalyst in promoting three-component A(3) coupling reaction of alkynes, aldehydes, and amines for the synthesis of propargyl amines under the optimized condition.

We¡¯ll also look at important developments in the pharmaceutical industry because understanding organic chemistry is important in understanding health, medicine, 14347-78-5. The above is the message from the blog manager. Recommanded Product: (R)-(2,2-Dimethyl-1,3-dioxolan-4-yl)methanol.

Reference:
Copper catalysis in organic synthesis – NCBI,
,Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

 

Reference of 14347-78-5, Children learn through play, and they learn more than adults might expect. Science experiments are a great way to spark their curiosity, 14347-78-5, Name is (R)-(2,2-Dimethyl-1,3-dioxolan-4-yl)methanol, SMILES is OC[C@H]1OC(C)(C)OC1, belongs to copper-catalyst compound. In a article, author is Jiang, Yong, introduce new discover of the category.

Enhanced catalytic phenol hydroxylation by CuZnFeAl layered double hydroxides: synergistic effects of Cu+ and oxygen vacancies

In this work, a series of CuZnFeAl-LDH catalysts for phenol oxidation to dihydroxybenzene have been prepared through a co-precipitation method. Versatile characterization studies are applied to reveal electron transfer from oxygen vacancies to Cu2+ on the LDH surface. The resulting Cu+ benefits the formation of hydroxyl radicals to promote the catalytic activity. Besides, through inverse gas chromatography (IGC), the acid-base hydrotalcite surface can be quantitatively determined. Both the oxygen vacancies and acid-base ratio (K-a/K-b) abide by a volcano-like tendency with the addition of copper content, which is consistent with the catalysis result. Among all these catalysts, 15/CuZnFeAl-LDH presents the optimal conversion (66.9%), selectivity (71.3%), and stable recyclability under mild conditions (60 degrees C, 1.0 MPa), respectively, and is environmentally-friendly and energy efficient. The high efficiency of this catalyst is mainly attributed to the synergistic effect between Cu+ and oxygen vacancies promoted by K-a/K-b.

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Reference:
Copper catalysis in organic synthesis – NCBI,
,Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

 

A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 14347-78-5, Name is (R)-(2,2-Dimethyl-1,3-dioxolan-4-yl)methanol, molecular formula is C6H12O3. In an article, author is Librando, Ivy L.,once mentioned of 14347-78-5, Product Details of 14347-78-5.

The Catalytic Activity of Carbon-Supported Cu(I)-Phosphine Complexes for the Microwave-Assisted Synthesis of 1,2,3-Triazoles

A set of Cu(I) complexes with 3,7-diacetyl-1,3,7-triaza-5-phosphabicyclo-[3.3.1]nonane (DAPTA) phosphine ligands viz. [CuX(kappa P-DAPTA)(3)] (1: X = Br; 2: X = I) and [Cu(mu-X)(kappa P-DAPTA)(2)](2) (3: X = Br; 4: X = I) were immobilized on activated carbon (AC) and multi-walled carbon nanotubes (CNT), as well as on these materials after surface functionalization. The immobilized copper(I) complexes have shown favorable catalytic activity for the one-pot, microwave-assisted synthesis of 1,2,3-triazoles via the azide-alkyne cycloaddition reaction (CuAAC). The heterogenized systems with a copper loading of only 1.5-1.6% (w/w relative to carbon), established quantitative conversions after 15 min, at 80 degrees C, using 0.5 mol% of catalyst loading (relative to benzyl bromide). The most efficient supports concerning heterogenization were CNT treated with nitric acid and NaOH, and involving complexes 2 and 4 (in the same order, 2 CNT-ox-Na and 4_CNT-ox-Na). The immobilized catalysts can be recovered and recycled by simple workup and reused up to four consecutive cycles although with loss of activity.

Interested yet? Keep reading other articles of 14347-78-5, you can contact me at any time and look forward to more communication. Product Details of 14347-78-5.

Reference:
Copper catalysis in organic synthesis – NCBI,
,Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

 

Application of 14347-78-5, As an important bridge between the micro and macro material world, chemistry is one of the main methods and means for humans to understand and transform the material world. 14347-78-5, Name is (R)-(2,2-Dimethyl-1,3-dioxolan-4-yl)methanol, SMILES is OC[C@H]1OC(C)(C)OC1, belongs to copper-catalyst compound. In a article, author is Lu, Chenyang, introduce new discover of the category.

High-Performance Catalysts Derived from Cupric Subcarbonate for Selective Hydrogenation of Acetylene in an Ethylene Stream

A high-performance base metal catalyst for acetylene selective hydrogenation was prepared from cupric subcarbonate (Cu-2(OH)(2)CO3) by thermal treatment with an acetylene-containing gas followed by hydrogen reduction. The characterization results revealed that the copper catalyst was composed of interstitial copper carbide (CuxC) and metal Cu, which were embedded in porous carbon matrix. The CuxC crystallites, which showed outstanding hydrogenation activity, were derived from the hydrogen reduction of copper (II) acetylide (CuC2) which was generated from the reaction between acetylene and Cu-2(OH)(2)CO3. The Cu particles and porous carbon were generated from the unavoidable thermal decomposition of CuC2. The prepared Cu-derived catalyst completely removed the acetylene impurity in an ethylene stream with a very low over-hydrogenation selectivity at 110 degrees C and atmospheric pressure. No obvious deactivation was observed in a 180-h test run. In the Cu-derived catalyst, CuxC served as the catalytic site for H-2 dissociation, Cu mainly functioned as the site for selective hydrogenation of acetylene, whereas the porous carbon matrix posed a steric hindrance effect on the chain growth of linear hydrocarbons so as to suppress the undesired oligomerization.

Application of 14347-78-5, Because enzymes can increase reaction rates by enormous factors and tend to be very specific, typically producing only a single product in quantitative yield, they are the focus of active research.you can also check out more blogs about 14347-78-5.

Reference:
Copper catalysis in organic synthesis – NCBI,
,Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

 

14347-78-5, Name is (R)-(2,2-Dimethyl-1,3-dioxolan-4-yl)methanol, molecular formula is C6H12O3, belongs to copper-catalyst compound, is a common compound. In a patnet, author is Abudayyeh, Abdullah M., once mentioned the new application about 14347-78-5, Application In Synthesis of (R)-(2,2-Dimethyl-1,3-dioxolan-4-yl)methanol.

Copper catalysts for photo- and electro-catalytic hydrogen production

Green production of hydrogen, a carbon-zero future fuel, requires long lived, high activity catalysts made from inexpensive, earth abundant metal ions. Only 15 molecular copper complexes catalyze the H-2 evolving reaction (HER). Herein 3 such complexes are prepared and studied as catalysts for both photo- and electro-catalytic HER. Two new N-5-donor analogues of the literature N-4-donor Schiff base macrocycle HLEt (from [1 + 1] condensation of 2,2 ‘-iminobisbenzaldehyde (dpa) and diethylenetriamine), macrocycle HLEt-MePy (2-bromomethylpyridine alkylation of HLEt) and non-cyclic HLEtPy2 (condensation of dpa and two 2-aminoethylpyridine), were prepared. Then literature [Cu-II(L-Et)]BF4 (1), and new [Cu-II(LEt-MePy)]BF4 (2) and [Cu-II(L-EtPy2)]BF4 (3), were prepared and structurally characterized, revealing square, square pyramidal and trigonal bipyramidal copper(ii) geometries, respectively. Testing under photocatalytic conditions showed that 1-3 have modest turnover numbers (TON = 460-620), but the control, using Cu(BF4)(2), had a higher TON (740), and the blank (no copper) also had significant activity (TONequiv = 290). So this is a cautionary tale: whilst 1-3 initially appeared to be promising catalysts for photocatalytic HER, running the control and blank – studies often not reported – shows otherwise. Hence the focus shifted to electrocatalytic HER testing. All three complexes show reversible redox events in MeCN vs. 0.01 M AgNO3/Ag: E-1/2 = -1.39 V (1 and 2); -0.89 V (3). Unlike complexes 2 and 3 or the control, 1 is shown to be, or to form, an effective and stable electrocatalyst for HER in MeCN with acetic acid as the proton source (at 100 mV s(-1), E-cat/2 = -1.64 V so overpotential necessary for catalysis = 0.23 V, and i(cat)/i(p) = 34, where i(cat) is peak catalytic current and i(p) is 1e(-) peak current for 1 in absence of acid): after 6 hours at -1.6 V, the TON for 1 is 12.5, despite the tiny glassy carbon working electrode used, and it retains good electrocatalytic activity. Results of both ‘rinse and repeat’ (for catalytically active deposit on working electrode) and drop of Hg (for formation of catalytically active nanoparticles) tests are consistent with homogeneous catalysis by 1, but a small copper stripping wave is seen after acetic acid is added, so it is probable that these initial test results are ‘false negatives’, and that there is a heterogenous catalytically active species present; so future studies will probe this point further.

If you¡¯re interested in learning more about 14347-78-5. The above is the message from the blog manager. Application In Synthesis of (R)-(2,2-Dimethyl-1,3-dioxolan-4-yl)methanol.

Reference:
Copper catalysis in organic synthesis – NCBI,
,Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

 

14347-78-5, Name is (R)-(2,2-Dimethyl-1,3-dioxolan-4-yl)methanol, molecular formula is C6H12O3, belongs to copper-catalyst compound, is a common compound. In a patnet, author is Li, Menglu, once mentioned the new application about 14347-78-5, Name: (R)-(2,2-Dimethyl-1,3-dioxolan-4-yl)methanol.

Do Cu Substrates Participate in Bi Electrocatalytic CO2 Reduction?

Bi based electrocatalysts for CO2 reduction have recently attracted much research attention. Although Cu substrates were mainly used in these material investigations, whether the Cu substrates act as the CO2 reduction electrocatalysts is questionable, and yet disregarded. Herein to comprehensively investigate the influence of Cu substrate on the electrochemical performance, we electro-deposited Bi catalysts on Cu foams. It was found that during the whole process, the morphology and composition of Bi/Cu electrocatalysts varied, indicating that Cu acted as not only the electrode substrates but also the active materials for CO2 reduction. After optimization, Bi/Cu materials achieved high activity of 59.7 mA cm(-2) and selectivity of 95% for CO2 converted formate. Our work provides experimental evidence for the material design and optimization of Bi-based materials for CO2 reduction.

If you¡¯re interested in learning more about 14347-78-5. The above is the message from the blog manager. Name: (R)-(2,2-Dimethyl-1,3-dioxolan-4-yl)methanol.

Reference:
Copper catalysis in organic synthesis – NCBI,
,Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

 

In an article, author is Liu, Yong, once mentioned the application of 14347-78-5, Name is (R)-(2,2-Dimethyl-1,3-dioxolan-4-yl)methanol, molecular formula is C6H12O3, molecular weight is 132.1577, MDL number is MFCD00003213, category is copper-catalyst. Now introduce a scientific discovery about this category, Category: copper-catalyst.

Fenton-like degradation of sulfamethoxazole in Cu-0/Zn-0-air system over a broad pH range: Performance, kinetics and mechanism

In this study, a bimetallic Cu-0/Zn-0 particles were prepared, characterized and used as Fenton-like catalyst for the degradation of sulfamethoxazole (SMX). The results showed that Cu-0/Zn-0 particles were capable of converting O-2 to H2O2, center dot O-2(-) and %OH radicals. In bimetallic Cu-0/Zn-0 particles, Cu-0/Zn-0 corrosion cells were formed through the direct contact of Zn-0 and Cu-0, which not only accelerated the electron transfer from Zn-0 to O-2, leading to the promotion of H2O2 generation, but also enhanced the conversion of Cu2+ to Cu+/Cu-0, facilitating the catalytic decomposition of H2O2 to produce center dot O-2(-) and %OH radicals. SMX could be efficiently degraded in Cu-0/Zn-0-air system over a broad pH range from 3 to 9, the removal efficiency of SMX and TOC was 87.8% and 45.5%, respectively at following condition: SMX concentration, 20 mg/L; dosage of bimetallic Cu-0/Zn-0 particles (mole ratio of Zn to Cu was 1:2), 2 g/L; air flow rate, 1.8 L/min; reaction temperature, 25. and without adjusting pH. The recycling use of bimetallic Cu-0/Zn-0 particles leaded to the enhanced degradation of SMX due to the newly formed cuprous oxide (Cu2O), which could further catalytically activate O-2. The quenching experiment showed that the concentration of dissolved oxygen could significantly affect the main reactive oxidant species (ROSs). Additionally, the intermediate products of SMX degradation were detected and a possible pathway of SMX degradation as well as the catalytic mechanism of Cu-0/Zn-0-air system were proposed.

Do you like my blog? If you like, you can also browse other articles about this kind. Thanks for taking the time to read the blog about 14347-78-5, Category: copper-catalyst.

Reference:
Copper catalysis in organic synthesis – NCBI,
,Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

 

Chemo-enzymatic cascade processes are invaluable due to their ability to rapidly construct high-value products from available feedstock chemicals in a one-pot relay manner. In an article, author is Song, Jili, once mentioned the application of 14347-78-5, Name is (R)-(2,2-Dimethyl-1,3-dioxolan-4-yl)methanol, molecular formula is C6H12O3, molecular weight is 132.1577, MDL number is MFCD00003213, category is copper-catalyst. Now introduce a scientific discovery about this category, SDS of cas: 14347-78-5.

Robust and Efficient Pd-Cu Bimetallic Catalysts with Porous Structure for Formic Acid Oxidation and a Mechanistic Study of Electrochemical Dealloying

To obtain highly efficient and robust electrocatalysts for formic acid oxidation, PdxCuy/C binary catalysts with porous structures were successfully prepared via electrochemical dealloying. Catalysts with different Pd/Cu atomic ratios were characterized through transmission electron microscopy, inductively coupled plasma atomic emission spectroscopy, and X-ray diffraction. The optimized dealloyed Pd1Cu4/C catalyst with a porous structure displayed a catalytic activity of 2611 A g(-1) and high stability (30.5% activity retention under repeated cyclic voltammetric (CV) patrol), whereas a commercial Pd/C-Aldrich benchmark showed a catalytic activity of 785 A g(-1) and retained 16.5% activity. A detailed mechanistic study of electrochemical dealloying was performed. Under repeated CV patrol, Pd-enriched porous architectures evolved from Pd-poor surfaces, accompanied by successive Cu dissolution.

Do you like my blog? If you like, you can also browse other articles about this kind. Thanks for taking the time to read the blog about 14347-78-5, SDS of cas: 14347-78-5.

Reference:
Copper catalysis in organic synthesis – NCBI,
,Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

 

Chemistry is the experimental science by definition. We want to make observations to prove hypothesis. For this purpose, we perform experiments in the lab. , Computed Properties of C6H12O3, 14347-78-5, Name is (R)-(2,2-Dimethyl-1,3-dioxolan-4-yl)methanol, molecular formula is C6H12O3, belongs to copper-catalyst compound. In a document, author is Luo, Min, introduce the new discover.

Dilute molybdenum atoms embedded in hierarchical nanoporous copper accelerate the hydrogen evolution reaction

The development of earth-abundant, non-noble, high-performance hydrogen evolution reaction (HER) electrocatalysts is still a highly challenging but vitally important issue for energy conversion system. Herein, we reported a self-supported Mo modified hierarchical nanoporous Cu as an efficient electrocatalyst for hydrogen evolution. The optimized nanoporous Cu-Mo electrocatalysts with extremely dilute Mo content exhibits a high HER activity with a negligible onset potential, a small Tafel slope, and an excellent durability in alkaline solution. The dealloying process provides nanoporous Cu-Mo electrocatalysts a unique three-dimensional interconnected bicontinuous nanoporous architecture, which can not only offer high-density catalytic active sites for HER, but also accelerate the desorption of hydrogen molecule from catalysts surface. Density functional theory (DFT) calculations reveal that the introducing of Mo into Cu matrix can accelerate water adsorption and dissociation and optimize adsorption-desorption energetics of H intermediates, thus improving the intrinsic HER activity of nanoporous Cu-Mo electrocatalysts. (C) 2020 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

A reaction mechanism is the microscopic path by which reactants are transformed into products. Each step is an elementary reaction. In my other articles, you can also check out more blogs about 14347-78-5. Computed Properties of C6H12O3.

Reference:
Copper catalysis in organic synthesis – NCBI,
,Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

 

Reference of 14347-78-5, Chemo-enzymatic cascade processes are invaluable due to their ability to rapidly construct high-value products from available feedstock chemicals in a one-pot relay manner. 14347-78-5, Name is (R)-(2,2-Dimethyl-1,3-dioxolan-4-yl)methanol, SMILES is OC[C@H]1OC(C)(C)OC1, belongs to copper-catalyst compound. In a article, author is Zhang, Chaoyang, introduce new discover of the category.

Superior catalytic performance and CO tolerance of PtCu/graphdiyne electrocatalyst toward methanol oxidation reaction

In this work, the PtCu electrocatalyst supported on graphdiyne (PtCu/GDY) nanocomposite was synthesized for methanol oxidation reaction (MOR). The results demonstrated that the obtained PtCu/GDY catalyst has a good dispersion on graphdiyne. The electrochemical experiments indicated that the PtCu/GDY displayed a superior electrocatalytic activity towards MOR with a high mass activity of 336 mA mg(-1). Furthermore, the presence of GDY can significantly improve the CO tolerance property of PtCu for MOR, which facilitating OHads generation from H2O decomposition. Therefore, the PtCu/GDY electrocatalyst offers an exciting opportunity to be commercialization of direct methanol fuel cells.

Reference of 14347-78-5, Because enzymes can increase reaction rates by enormous factors and tend to be very specific, typically producing only a single product in quantitative yield, they are the focus of active research.you can also check out more blogs about 14347-78-5.

Reference:
Copper catalysis in organic synthesis – NCBI,
,Special Issue “Fundamentals and Applications of Copper-Based Catalysts”