Day: October 14, 2022

In 2022,Kim, Jaewon; Kendall, Owen; Ren, Jiawen; Murdoch, Billy J.; McConville, Christopher F.; van Embden, Joel; Della Gaspera, Enrico published an article in ACS Applied Materials & Interfaces. The title of the article was 《Highly Conductive and Visibly Transparent p-Type CuCrO2 Films by Ultrasonic Spray Pyrolysis》.Application of 13395-16-9 The author mentioned the following in the article:

The development of high-performing p-type transparent conducting oxides will enable immense progress in the fabrication of optoelectronic devices including invisible electronics and all-oxide power electronics. While n-type transparent electrodes have already reached widespread industrial production, the lack of p-type counterparts with comparable transparency and conductivity has created a bottleneck for the development of next-generation optoelectronic devices. In this work, we present the fabrication of delafossite copper chromium oxide p-type transparent electrodes with outstanding optical and elec. properties. These layers were deposited using ultrasonic spray pyrolysis, a wet chem. method that is fast, simple, and scalable. Through careful screening of the deposition conditions, highly crystalline, dense, and smooth CuCrO2 coatings were obtained. A detailed investigation of the role played by the deposition temperature and the cation ratio enabled the properties of the prepared layers to be reliably tuned, as verified using X-ray diffraction, XPS, optical spectroscopy, Hall effect measurements, and electron and at. force microscopies. We demonstrate record conductivities for solution-processed CuCrO2, exceeding 100 S cm-1, and we also obtained the highest value for two sep. figures of merit for p-type transparent conducting oxides. These performances position solution-deposited CuCrO2 as the leading p-type transparent-conducting oxide currently available. In the experiment, the researchers used many compounds, for example, Bis(acetylacetone)copper(cas: 13395-16-9Application of 13395-16-9)

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. Application of 13395-16-9

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

In 2022,Maalej, Wassim; Hajlaoui, Fadhel; Karoui, Karim; Audebrand, Nathalie; Roisnel, Thierry published an article in Journal of Solid State Chemistry. The title of the article was 《Crystal structure and semiconductor properties of copper(II) complex incorporating chiral (R)-(+)-α-Ethylbenzylammonium cations:[(R)-C9H14N]3[CuBr4].Br.》.SDS of cas: 7789-45-9 The author mentioned the following in the article:

The mol. organic-inorganic hybrid halometallate [(R)-C9H14N]3[CuBr4].Br was synthesized by a slow evaporation method. The single-crystal x-ray diffraction experiment evidences that [(R)-C9H14N]3[CuBr4].Br crystallizes in the monoclinic system with the noncentrosym. space group P21 at T = 150K. The compound displays a zero-dimensional (0D) structure which consists in 3 chiral [(R)-C9H14N]+ cations, 1 anionic [CuBr4]2-, and free Br- ion. The Cu(II) has an intermediate geometry between regular tetrahedron (Td) and square planar (D4h). In the crystal structure, the cations and anions are arranged in alternating stacks which are interconnected via H bonding contacts N-H···Br. This hybrid compound presents good thermal stability up to 370 K. The DSC and elec. measurements show that no phase transition occurs in the compound over the temperature range 223-423 K. Optical absorption measurements suggest that [(R)-C9H14N]3[CuBr4].Br has a narrow direct optical band gap (Eg) of ∼2.15 eV which makes it a promising material in optoelectronic devices. In the experiment, the researchers used Cupric bromide(cas: 7789-45-9SDS of cas: 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.SDS of cas: 7789-45-9

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

Application In Synthesis of Cupric bromideIn 2019 ,《Facile and efficient Cu(0)-mediated radical polymerization of pentafluorophenyl methacrylate grafting from poly(ethylene terephthalate) film》 appeared in European Polymer Journal. The author of the article were Nguyen, Thi Phuong Thu; Barroca-Aubry, Nadine; Dragoe, Diana; Mazerat, Sandra; Brisset, Francois; Herry, Jean-Marie; Roger, Philippe. The article conveys some information:

Grafting polymers bearing active esters, especially pentafluorophenyl methacrylate (PFPMA), onto or from surface is a promising approach towards the preparation of highly functional materials due to the ease in post-polymerization modification of their corresponding polymers. Herein, a handy and efficient chem. modification process is proposed to modify extreme surface of poly(ethylene terephthalate) (PET) films towards the final purpose of grafting PFPMA polymer from PET surface via surface-initiated Cu(0)-mediated radical polymerization The characteristics of modified surface were evaluated after each step using various techniques including water contact angle, attenuated total reflectance Fourier-transform IR spectroscopy, XPS, at. force microscopy, and scanning electron spectroscopy. Due to its robust conditions, the proposed approach allows grafting at ease PFPMA polymer from PET supporting surface, which not only enhances the reactivity of this inert material but also improves significantly the hydrophobicity of the surface. The experimental process involved the reaction of Cupric bromide(cas: 7789-45-9Application In Synthesis of Cupric bromide)

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.Application In Synthesis of Cupric bromide

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

In 2019,Journal of Physics: Condensed Matter included an article by Zhao, Z. Y.; Che, H. L.; Chen, R.; Wang, J. F.; Sun, X. F.; He, Z. Z.. Product Details of 7789-45-9. The article was titled 《Magnetism study on a triangular lattice antiferromagnet Cu2(OH)3Br》. The information in the text is summarized as follows:

Magnetism of Cu2(OH)3Br single crystals based on a triangular lattice is studied by means of magnetic susceptibility, pulsed-field magnetization, and sp. heat measurements. There are two inequivalent Cu2+ sites in an asym. unit. Both Cu2+ sublattices undergo a long-range antiferromagnetic (AFM) order at TN = 9.3 K. Upon cooling, an anisotropy crossover from Heisenberg to XY behavior is observed below 7.5 K from the anisotropic magnetic susceptibility. The magnetic field applied within the XY plane induces a spin-flop transition of Cu2+ ions between 4.9 T and 5.3 T. With further increasing fields, the magnetic moment is gradually increased but is only about half of the saturation of a Cu2+ ion even in 30 T. The individual reorientation of the inequivalent Cu2+ spins under field is proposed to account for the magnetization behavior. The observed spin-flop transition is likely related to one Cu site, and the AFM coupling among the rest Cu spins is so strong that the 30 T field cannot overcome the anisotropy. The temperature dependence of the magnetic sp. heat, which is well described by a sum of two gapped AFM contributions, is a further support for the proposed scenario. In the part of experimental materials, we found many familiar compounds, such as Cupric bromide(cas: 7789-45-9Product Details 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.Product Details of 7789-45-9

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

《Experimental and Theoretical Study into Interface Structure and Band Alignment of the Cu2Zn1-xCdxSnS4 Heterointerface for Photovoltaic Applications》 was published in ACS Applied Energy Materials in 2020. These research results belong to Rondiya, Sachin R.; Jadhav, Yogesh; Dzade, Nelson Y.; Ahammed, Raihan; Goswami, Tanmay; De Sarkar, Abir; Jadkar, Sandesh; Haram, Santosh; Ghosh, Hirendra N.. COA of Formula: C10H16CuO4 The article mentions the following:

To improve the constraints of kesterite Cu2ZnSnS4 (CZTS) solar cell, such as undesirable band alignment at p-n interfaces, bandgap tuning, and fast carrier recombination, cadmium (Cd) is introduced into CZTS nanocrystals forming Cu2Zn1-xCdxSnS4 through cost-effective solution-based method without postannealing or sulfurization treatments. A synergetic exptl.-theor. approach was employed to characterize and assess the optoelectronic properties of Cu2Zn1-xCdxSnS4 materials. Tunable direct band gap energy ranging from 1.51-1.03 eV with high absorption coefficient was demonstrated for the Cu2Zn1-xCdxSnS4 nanocrystals with changing Zn/Cd ratio. Such bandgap engineering in Cu2Zn1-xCdxSnS4 helps in effective carrier separation at interface. Ultrafast spectroscopy reveals a longer lifetime and efficient separation of photoexcited charge carriers in Cu2CdSnS4 (CCTS) nanocrystals compared to that of CZTS. It was found that there exists a type-II staggered band alignment at the CZTS (CCTS)/CdS interface, from cyclic voltammetric (CV) measurements, corroborated by first-principles d. functional theory (DFT) calculations, predicting smaller conduction band offset (CBO) at the CCTS/CdS interface as compared to the CZTS/CdS interface. These results point toward efficient separation of photoexcited carriers across the p-n junction in the ultrafast time scale and highlight a route to improve device performances. The experimental part of the paper was very detailed, including the reaction process 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”

《The Non-innocent Role of Spin Traps in Monitoring Radical Formation in Copper-Catalyzed Reactions》 was published in Applied Magnetic Resonance in 2020. These research results belong to Samanipour, Mohammad; Ching, H. Y. Vincent; Sterckx, Hans; Maes, Bert U. W.; Van Doorslaer, Sabine. Related Products of 13395-16-9 The article mentions the following:

Spin traps, like 5,5-dimethyl-1-pyrroline N-oxide (DMPO), are commonly used to identify radicals formed in numerous chem. and biol. systems, many of which contain metal-ion complexes. In this study, continuous wave ESR and hyperfine spectroscopy are used to prove the equatorial ligation of DMPO(-derived) mols. to Cu(II), even in the presence of competing nitrogen bases. The exptl. data are corroborated with d. functional theory calculations It is shown that 14N HYSCORE can be used as a fingerprint method to reveal the coordination of DMPO(-derived) mols. to Cu(II), an interaction that might influence the outcome of spin-trapping experiments and consequently the conclusion drawn on the mechanism under study. The results came from multiple reactions, including the reaction of Bis(acetylacetone)copper(cas: 13395-16-9Related Products 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.Related Products of 13395-16-9

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

《Promoting Effects of Au Submonolayer Shells on Structure-Designed Cu-Pd/Ir Nanospheres: Greatly Enhanced Activity and Durability for Alkaline Ethanol Electro-Oxidation》 was written by Luo, Liuxuan; Fu, Cehuang; Yan, Xiaohui; Shen, Shuiyun; Yang, Fan; Guo, Yangge; Zhu, Fengjuan; Yang, Lijun; Zhang, Junliang. Related Products of 13395-16-9 And the article was included in ACS Applied Materials & Interfaces in 2020. The article conveys some information:

Rationally engineering the surface physicochem. properties of nanomaterials can improve their activity and durability for various electrocatalytic and energy conversion applications. Cu-Pd/Ir (CPI) nanospheres (NSs) anchored on N-doped porous graphene (NPG) [(CPI NSs/NPG)] have been recently demonstrated as a promising electrocatalyst for the alk. ethanol oxidation reaction (EOR); to further enhance their electrocatalytic performance, the NPG-supported CPI NSs are coated with Au submonolayer (SML) shells (SMSs), through which their surface physicochem. properties can be tuned. CPI NSs/NPG is prepared by the previously developed method and possesses the special structures of composition-graded Cu1Pd1 and surface-doped Ir0.03. The Au SMSs with designed surface coverages are formed via an electrochem. technol. involving incomplete Cu underpotential deposition (UPD) and Au3+ galvanic replacement. A distinctive volcano-type relation between the EOR electrocatalytic activity and the Au-SMS surface coverage for CPI@AuSML NSs/NPG is revealed, and the optimal CPI@Au1/6ML NSs/NPG greatly surpasses com. Pd/C and CPI NSs/NPG in electrocatalytic activity and noble metal utilization. More importantly, its electrocatalytic durability in 1 h chronoamperometric and 500-cycle potential cycling degradation tests is also significantly improved. According to detailed physicochem. characterizations, electrochem. analyses, and d. functional theory calculations, the promoting effects of the Au SMS for enhancing the EOR electrocatalytic activity and durability of CPI NSs/NPG can be mainly attributed to the greatly weakened carbonaceous intermediate bonding and properly increased surface oxidation potential. This work also proposes a versatile and effective strategy to tune the surface physicochem. properties of metal-based nanomaterials via incomplete UPD and metal-cation galvanic replacement for advancing their electrocatalytic and energy conversion performance. The results came from multiple reactions, including the reaction of Bis(acetylacetone)copper(cas: 13395-16-9Related Products 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.Related Products of 13395-16-9

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

《Low Pt-Content Ternary PtNiCu Nanoparticles with Hollow Interiors and Accessible Surfaces as Enhanced Multifunctional Electrocatalysts》 was written by Wu, Dengfeng; Zhang, Wei; Lin, Aijun; Cheng, Daojian. Category: copper-catalyst And the article was included in ACS Applied Materials & Interfaces in 2020. The article conveys some information:

Developing highly active and durable electrocatalysts with low levels of Pt content toward some crucial reactions including O reduction reaction, H evolution reaction, and MeOH oxidation reaction in an acidic electrolyte environment are desirable but still an open challenge for clean and efficient energy conversion. Herein, the authors present a facile route to synthesize low Pt-content ternary PtNiCu nanostructures with hollow interior and accessible surfaces (H-PtNiCu-AAT NPs) as enhanced multifunctional electrocatalysts. The galvanic replacement reaction and at. diffusion between in situ preformed CuNi nanocrystals and Pt species should be responsible for the formation of hollow PtNiCu NPs. Continuous activation by acid picking and annealing treatments were performed to leach out the excessive Cu and Ni on the surfaces and to enrich Pt-content on the surface. H-PtNiCu-AAT NPs exhibit excellent activity and durability toward HER, ORR, and MOR due to the rational integration of multiple structural advantages. Strikingly, the mass activity and specific activity of H-PtNiCu-AAT NPs (0.977 A mgPt-1 and 1.458 mA cm-2) is 7.1 and 6.9 times higher than that of com. Pt/C (0.138 A mgPt-1 and 0.212 mA cm-2) toward ORR at 0.9 V (vs. RHE), resp. This present work provides an efficient strategy for the design of low Pt-content trimetallic electrocatalysts with excellent activity and durability. In the part of experimental materials, we found many familiar compounds, such as Bis(acetylacetone)copper(cas: 13395-16-9Category: copper-catalyst)

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.Category: copper-catalyst

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

Li, Jiaxiong; Ren, Chao; Sun, Zhijian; Ren, Yanjuan; Lee, Haksun; Moon, Kyoung-sik; Wong, Ching-Ping published an article in 2021. The article was titled 《Melt Processable Novolac Cyanate Ester/Biphenyl Epoxy Copolymer Series with Ultrahigh Glass-Transition Temperature》, and you may find the article in ACS Applied Materials & Interfaces.SDS of cas: 13395-16-9 The information in the text is summarized as follows:

The rapid progress in silicon carbide (SiC)-based technol. for high-power applications expects an increasing operation temperature (up to 250°C) and awaits reliable packaging materials to unleash their full power. Epoxy-based encapsulant materials failed to provide satisfactory protection under such high temperatures due to the intrinsic weakness of epoxy resins, despite their unmatched good adhesion and processability. Herein, we report a series of copolymers made by melt blending novolac cyanate ester and tetramethylbiphenyl epoxy (NCE/EP) that have demonstrated much superior high-temperature stability over current epoxies. Benefited from the aromatic, rigid backbone and the highly functional nature of the monomers, the highest values achieved for the copolymers are as follows: glass-transition temperature (Tg) above 300°C, decomposition onset above 400°C, and char yield above 45% at 800°C, which are among the highest of the known epoxy chem. by far. Moreover, the high-temperature aging (250°C) experiments showed much reduced mass loss of these copolymers compared to the traditional high-temperature epoxy and even the pure NCE in the long term by suppressing hydrolysis degradation mechanisms. The copolymer composition, i.e., NCE to EP ratio, has found to have profound impacts on the resin flowability, thermomech. properties, moisture absorption, and dielec. properties, which are discussed in this paper with in-depth anal. on their structure-property relationships. The outstanding high-temperature stability, preferred and adjustable processability, and the dielec. properties of the reported NCE/EP copolymers will greatly stimulate further research to formulating robust epoxy molding compounds (EMCs) or underfill for packaging next-generation high-power electronics. In the experiment, the researchers used Bis(acetylacetone)copper(cas: 13395-16-9SDS of cas: 13395-16-9)

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. SDS of cas: 13395-16-9

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

Pesesse, Antoine; Carenco, Sophie published an article in 2021. The article was titled 《Influence of the copper precursor on the catalytic transformation of oleylamine during Cu nanoparticle synthesis》, and you may find the article in Catalysis Science & Technology.Application In Synthesis of Bis(acetylacetone)copper The information in the text is summarized as follows:

For optimal use of copper nanoparticles in catalysis, in-depth understanding of the reaction mechanisms and fine characterization of final products are equally relevant. Indeed, both have a direct impact on the nanoparticle core and surface. So far, most insights come from characterization techniques focusing on the inorganic component, i.e. the nanoparticle core. Mol. techniques are often overlooked and the reactions alongside the reduction of the copper precursor are not properly understood. Such understanding is mandatory to properly interpret the nanoparticle behavior in catalytic processes. Here, copper nanoparticle synthesis was studied by thorough characterization of the organic reactions happening during the synthesis, quant. by 1H NMR and qual. by infra-red spectroscopy (IR) and electrospray ionisation-mass spectrometry (ESI-MS). The reduction of copper(II) acetate (Cu(OAc)2) by oleylamine resulted in a high amount of water and few byproducts while the reduction of copper(II) acetylacetonate (Cu(acac)2) resulted in a low amount of water and many products. The resulting nanoparticles showed different abilities to further dehydrogenate and transaminate oleylamine in the synthesis reaction pot. This was explained by the presence of a copper oxide phase in the nanoparticles prepared from copper acetate. In the experiment, the researchers used Bis(acetylacetone)copper(cas: 13395-16-9Application In Synthesis of Bis(acetylacetone)copper)

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 In Synthesis of Bis(acetylacetone)copper

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