Day: October 17, 2022

In 2022,Li, Xiang; Liu, Yaming; Zhang, Jun-Jun; Yan, Bo; Jin, Changqing; Dou, Jingjing; Li, Mengyang; Feng, Xiaohua; Liu, Ge published an article in Chemistry of Materials. The title of the article was 《No Annealing Synthesis of Ordered Intermetallic PdCu Nanocatalysts for Boosting Formic Acid Oxidation》.Category: copper-catalyst The author mentioned the following in the article:

Owing to their high catalytic efficiency and selectivity, the ordered intermetallic Pd-based nanocatalysts have greater promise than disordered nanocatalysts for formic acid oxidation reactions (FAOR). Traditionally, intermetallic nanoparticles are synthesized via the annealing of disordered alloy in a high temperature and reducing atm. However, this method inevitably adds complexity and increases cost to practical application as well as leads to the destruction of nanostructures and the deactivation of nanocatalysts. Herein, monodisperse ordered intermetallic PdCu nanocatalysts are obtained through liquid phase reduction reaction in one pot without heat treatment. The results indicate that the ethylene glycol and KBr not only affect the solubilities of Pd and Cu precursors, but also facilitate the formation of the ordered intermetallic PdCu nanostructures with well-defined morphol. Compared to disordered PdCu, com. Pd/C, and com. Pd black nanocatalysts, the ordered intermetallic PdCu nanocatalysts display enhanced activity and durability for FAOR. The mass and specific activities are 665 mA mgPd-1 and 1.88 mA cm-2, which are 1.45, 2.67, and 4.16 and 1.21, 1.53, and 1.74 times disordered PdCu, com. Pd/C, and com. Pd black nanocatalysts, resp. This work comes up with one novel approach for the preparation of ordered intermetallic PdCu nanocrystals without heat treatment. After reading the article, we found that the author used Bis(acetylacetone)copper(cas: 13395-16-9Category: copper-catalyst)

Bis(acetylacetone)copper(cas: 13395-16-9) catalyzes coupling and carbene transfer reactions. Metal acetylacetonates are used as catalysts for polymerization of olefins and transesterification. Category: copper-catalyst

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

《Observation of field-induced single-ion magnet behavior in a mononuclear DyIII complex by co-crystallization of a square-planar CuII complex》 was published in Inorganica Chimica Acta in 2020. These research results belong to Li, Xi-Li; Li, Junfeng; Wang, Ailing; Liu, Cai-Ming; Cui, Minghui; Zhang, Yi-Quan. Recommanded Product: 13395-16-9 The article mentions the following:

Employing Cu(acac)2 to react with Dy(hfac)3(H2O)2 (where acac- = acetylacetonate and hfac- = 1,1,1,5,5,5-hexafluoroacetylacetonate), the first true 3d-4f metal-complex cocrystal with the composition of [Cu(acac)2·Dy(hfac)3(H2O)2] that only consists of reactants, was acquired and structurally characterized. Magnetic investigations revealed that the 4f conformer Dy(hfac)3(H2O)2 does not show slow magnetic relaxation behavior even under an applied dc field of 2000 Oe down to 1.9 K, while the obtained 3d-4f cocrystal displays evident slow magnetic relaxation behavior associated with single-ion magnet (SIM) characteristic under the same dc field. This phenomenon is further supported and elucidated by the results of theor. calculations together with the analyses of their crystal structures. Thus our results first indicate that 3d-4f co-crystallization technique is a useful tool for improving the magnetic performance of lanthanide complexes. In addition to this study using Bis(acetylacetone)copper, there are many other studies that have used Bis(acetylacetone)copper(cas: 13395-16-9Recommanded Product: 13395-16-9) was used in this study.

Bis(acetylacetone)copper(cas: 13395-16-9) catalyzes coupling and carbene transfer reactions. Metal acetylacetonates are used as catalysts for polymerization of olefins and transesterification. Recommanded Product: 13395-16-9

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

In 2022,Mathiesen, Jette K.; Boejesen, Espen D.; Pedersen, Jack K.; Kjaer, Emil T. S.; Juelsholt, Mikkel; Cooper, Susan; Quinson, Jonathan; Anker, Andy S.; Cutts, Geoff; Keeble, Dean S.; Thomsen, Maria S.; Rossmeisl, Jan; Jensen, Kirsten M. oe. published an article in Small Methods. The title of the article was 《Breaking with the Principles of Coreduction to Form Stoichiometric Intermetallic PdCu Nanoparticles》.Recommanded Product: Bis(acetylacetone)copper The author mentioned the following in the article:

Intermetallic nanoparticles (NPs) have shown enhanced catalytic properties as compared to their disordered alloy counterparts. To advance their use in green energy, it is crucial to understand what controls the formation of intermetallic NPs over alloy structures. By carefully selecting the additives used in NP synthesis, it is here shown that monodisperse, intermetallic PdCu NPs can be synthesized in a controllable manner. Introducing the additives iron(III) chloride and ascorbic acid, both morphol. and structural control can be achieved. Combined, these additives provide a synergetic effect resulting in precursor reduction and defect-free growth; ultimately leading to monodisperse, single-crystalline, intermetallic PdCu NPs. Using in situ X-ray total scattering, a hitherto unknown transformation pathway is reported that diverges from the commonly reported coredn. disorder-order transformation. A Cu-rich structure initially forms, which upon the incorporation of Pd(0) and at. ordering forms intermetallic PdCu NPs. These findings underpin that formation of stoichiometric intermetallic NPs is not limited by standard reduction potential matching and coredn. mechanisms, but is instead driven by changes in the local chem. Ultimately, using the local chem. as a handle to tune the NP structure might open new opportunities to expand the library of intermetallic NPs by exploiting synthesis by design. In addition to this study using Bis(acetylacetone)copper, there are many other studies that have used Bis(acetylacetone)copper(cas: 13395-16-9Recommanded Product: Bis(acetylacetone)copper) was used in this study.

Bis(acetylacetone)copper(cas: 13395-16-9) catalyzes coupling and carbene transfer reactions. Metal acetylacetonates are used as catalysts for polymerization of olefins and transesterification. Recommanded Product: Bis(acetylacetone)copper

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

《Hierarchical iridium-based multimetallic alloy with double-core-shell architecture for efficient overall water splitting》 was written by Zhang, Jie; Chen, Zelin; Liu, Chang; Zhao, Jun; Liu, Siliang; Rao, Dewei; Nie, Anmin; Chen, Yanan; Deng, Yida; Hu, Wenbin. Safety of Bis(acetylacetone)copper And the article was included in Science China Materials in 2020. The article conveys some information:

The overall water splitting for hydrogen production is an effective strategy to resolve the environmental and energy crisis. Here, we report a facile approach to synthesize the Ir-based multimetallic, hierarchical, double-coreshelled architecture (HCSA) assisted by oil bath reaction for boosting overall water splitting in acidic environment. The IrNiCu HCSA shows superior electrocatalytic activity for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), which are comparable to com. Pt/C and better than IrO2. The IrNiCu HCSA exhibits remarkably catalytic efficiency as bifunctional catalyst for overall water splitting where a low cell voltage of 1.53 V is enough to drive a c.d. of 10 mA cm-2 and maintains stable for at least 20 h. The presented work for the design and synthesis of novel Ir-based multimetallic architecture paves the way for highperformance overall water splitting catalysis. In addition to this study using Bis(acetylacetone)copper, there are many other studies that have used Bis(acetylacetone)copper(cas: 13395-16-9Safety of Bis(acetylacetone)copper) was used in this study.

Bis(acetylacetone)copper(cas: 13395-16-9) catalyzes coupling and carbene transfer reactions. Metal acetylacetonates are used as catalysts for polymerization of olefins and transesterification. Safety of Bis(acetylacetone)copper

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

Bottiglieri, Lorenzo; Nourdine, Ali; Resende, Joao; Deschanvres, Jean-Luc; Jimenez, Carmen published their research in Nanomaterials in 2021. The article was titled 《Optimized Stoichiometry for CuCrO2 Thin Films as Hole Transparent Layer in PBDD4T-2F:PC70BM Organic Solar Cells》.Category: copper-catalyst The article contains the following contents:

The performance and stability in atm. conditions of organic photovoltaic devices can be improved by the integration of stable and efficient photoactive materials as substituent of the chem. unstable poly (3,4-ethylene dioxythiophene):polystyrene sulfonate (PEDOT:PSS), generally used as organic hole transport layer. Promising candidates are p-type transparent conductive oxides, which combine good optoelectronic and a higher mech. and chem. stability than the organic counterpart. In this work, we synthesize Cu-rich CuCrO2 thin films by aerosol-assisted chem. vapor deposition as an efficient alternative to PEDOT:PSS. The effect of stoichiometry on the structural, elec., and optical properties was analyzed to find a good compromise between transparency, resistivity, and energy bands alignment, to maximize the photovoltaic performances., Average transmittance and bandgap are reduced when increasing the Cu content in these out of stoichiometry CuCrO2 films. The lowest elec. resistivity is found for samples synthesized from a solution composition in the 60-70% range. The optimal starting solution composition was found at 65% of Cu cationic ratio corresponding to a singular point in Hackee′s figure of merit of 1 x 10-7 Ω -1. PBDD4T-2F:PC70BM organic solar cells were fabricated by integrating CuCrO2 films grown from a solution composition ranging between 40% to 100% of Cu as hole transport layers. The solar cells integrating a film grown with a Cu solution composition of 65% achieved a power conversion efficiency as high as 3.1%, representing the best trade-off of the optoelectronic properties among the studied candidates. Addnl., despite the efficiencies achieved from CuCrO2-based organic solar cells are still inferior to the PEDOT:PSS counterpart, we demonstrated a significant enhancement of the lifetime in atm. conditions of optimal oxides-based organic photovoltaic devices.Bis(acetylacetone)copper(cas: 13395-16-9Category: copper-catalyst) was used in this study.

Bis(acetylacetone)copper(cas: 13395-16-9) catalyzes coupling and carbene transfer reactions. Metal acetylacetonates are used as catalysts for polymerization of olefins and transesterification. Category: copper-catalyst

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

Han, Ding-Chong; Tan, Yu-Hui; Wu, Wei-Chao; Li, Yu-Kong; Tang, Yun-Zhi; Zhuang, Jia-Chang; Ying, Ting-Ting; Zhang, Hao published an article in 2021. The article was titled 《High-temperature phase transition containing switchable dielectric behavior, long fluorescence lifetime, and distinct photoluminescence changes in 2D hybrid CuBr4 perovskite》, and you may find the article in Inorganic Chemistry.HPLC of Formula: 7789-45-9 The information in the text is summarized as follows:

A novel organic-inorganic hybrid perovskite crystal, [ClC6H4(CH2)2NH3]2CuBr4 (1), having experienced an invertible high-temperature phase transition near Tc (Curie temperature Tc = 355 K), has been successfully synthesized. The phase-transition characteristics for compound 1 are thoroughly revealed by sp. heat capacity (Cp), DTA, and differential scanning calorimetry tests, possessing 16 K broad thermal hysteresis. Multiple-temperature powder X-ray diffraction anal. further proves the phase-transition behavior of compound 1. Moreover, compound 1 exhibits a significant steplike dielec. response near Tc, revealing that it can be deemed to be a promising dielec. switching material. The variable-temperature fluorescence experiments show distinct photoluminescence (PL) changes of compound 1. Further investigation and calculation disclose that the fluorescence lifetime of compound 1 can reach as long as 55.46 μs, indicating that it can be a potential PL material. All of these researches contribute a substitutable avenue in the design and construction of neoteric phase-transition compounds combining high Curie temperature and PL properties. In the experiment, the researchers used Cupric bromide(cas: 7789-45-9HPLC of Formula: 7789-45-9)

Some reported applications of Cupric bromide(cas: 7789-45-9) are: catalyst in cross coupling reactions; co-catalyst in Sonogashira coupling; lewis acid in enantioselective addition of alkynes.HPLC of Formula: 7789-45-9

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

In 2022,Wang, Wenliang; Zhao, Yutong; Liu, Mengxue; Zhang, Wenqian; Zhang, Wenxiu; Tang, Mengqi; Feng, Wenling; Sun, Xue; Song, Yingqi; Yi, Menglin; Wang, Weihua published an article in Dalton Transactions. The title of the article was 《Novel solution synthesis of the overlooked cubic phase Cu2GeTe3 nanocrystals for optoelectronic devices》.COA of Formula: C10H16CuO4 The author mentioned the following in the article:

Herein, for the first time, we present a novel solution method for controllable synthesis of the overlooked cubic phase Cu2GeTe3 nanocrystals. The resulting Cu2GeTe3 nanocrystals are of high quality with monodispersed size and uniform shape. Optical characterization demonstrates that Cu2GeTe3 nanocrystals have a broad absorption in the visible to near-IR region. Furthermore, an optoelectronic device based on Cu2GeTe3 nanocrystals exhibits excellent stability, reproducibility and responsivity. The novel synthetic route presented here not only can open a new avenue for fabricating Cu2GeTe3 nanocrystals, especially at the nanoscale, but also may further expand their applications. The experimental process involved the reaction of Bis(acetylacetone)copper(cas: 13395-16-9COA of Formula: C10H16CuO4)

Bis(acetylacetone)copper(cas: 13395-16-9) is used as PVC stabilizer, and curing agents for epoxy resins, acrylic adhesives and silicone rubbers. It is also used as solvents, lubricant additives, paint drier, and pesticides.COA of Formula: C10H16CuO4

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

《Under pressure: electrochemically-mediated atom transfer radical polymerization of vinyl chloride》 was written by De Bon, Francesco; Ribeiro, Diana C. M.; Abreu, Carlos M. R.; Rebelo, Rafael A. C.; Isse, Abdirisak A.; Serra, Armenio C.; Gennaro, Armando; Matyjaszewski, Krzysztof; Coelho, Jorge F. J.. COA of Formula: Br2CuThis research focused onvinyl chloride electrochem mediated atom transfer radical polymerization. The article conveys some information:

The stringent control over the polymerization of less activated monomers remains one major challenge for Reversible Deactivation Radical Polymerizations (RDRP), including Atom Transfer Radical Polymerization (ATRP). Electrochem. mediated ATRP (eATRP) of a gaseous monomer, vinyl chloride (VC), was successfully achieved for the first time using a stainless-steel 304 (SS304) electrochem. reactor equipped with a simplified electrochem. setup. Controlled polymerizations were confirmed by the good agreement between theor. and measured mol. weights, as well as the relatively narrow mol. weight distributions. Preservation of chain-end fidelity was verified by chain extension experiments, yielding poly(vinyl chloride) (PVC) homopolymers, block and statistical copolymers. The possibility of synthesizing PVC by eATRP is a promising alternative to afford cleaner (co)polymers, with low catalyst concentration The metal body of the reactor was also successfully used as a cathode. The setup proposed in this contribution opens an avenue for the polymerization of other gaseous monomers. In the experiment, the researchers used many compounds, for example, Cupric bromide(cas: 7789-45-9COA of Formula: Br2Cu)

Some reported applications of Cupric bromide(cas: 7789-45-9) are: catalyst in cross coupling reactions; co-catalyst in Sonogashira coupling; lewis acid in enantioselective addition of alkynes.COA of Formula: Br2Cu

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

In 2019,Ferroelectrics included an article by Vani, Killimangalath; Anil, Adukkadan; Kumar, Viswanathan. Application of 13395-16-9. The article was titled 《Enhanced electrostrain in Cu2+-doped Ba0.8Sr0.2TiO3》. The information in the text is summarized as follows:

In this study we report large defect-mediated electrostrain (∼0.2%) in Cu2+-doped Ba0.8Sr0.2TiO3 (BST) ceramics. This electrostrain is due to the large reversible switching of the 90° domains facilitated by the defect dipoles. The increased tetragonality due to the J-T distortion in the Cu2+-doped compositions is also responsible for the higher electrostrains obtained. With the aid of ESR (EPR) Spectroscopic studies, it is also found that, the nature of the defect dipoles significantly influences the electrostrain in these copper doped materials. In the experimental materials used by the author, we found Bis(acetylacetone)copper(cas: 13395-16-9Application of 13395-16-9)

Bis(acetylacetone)copper(cas: 13395-16-9) is used as PVC stabilizer, and curing agents for epoxy resins, acrylic adhesives and silicone rubbers. It is also used as solvents, lubricant additives, paint drier, and pesticides.Application of 13395-16-9

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

《A Catalyst System Based on Copper(II) Bromide Supported on Zeolite HY with a Hierarchical Pore Structure in Benzyl Butyl Ether Synthesis》 was published in Petroleum Chemistry in 2020. These research results belong to Bayguzina, A. R.; Gallyamova, L. I.; Agliullin, M. R.; Khusnutdinov, R. I.. Related Products of 7789-45-9 The article mentions the following:

Novel catalyst systems based on CuBr2 supported on zeolite HY with a hierarchical pore structure have been proposed for benzyl Bu ether synthesis by the intermol. dehydration of benzyl and Bu alcs. It has been shown that catalyst systems with a CuBr2 content of ∼10 wt % provide a benzyl Bu ether yield of ∼95% at 150°C. The experimental part of the paper was very detailed, including the reaction process of Cupric bromide(cas: 7789-45-9Related Products of 7789-45-9)

Cupric bromide(cas: 7789-45-9) can be used as reducing agent, when complexed by three molecules of pyridine initiators for the controlled polymerization of styrene, methyl acrylate and methyl methacrylate.Related Products of 7789-45-9

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