Month: October 2022

Liu, Huan; Xiong, Zhuo; Peng, Rong; Gong, Bengen; Chang, Lin; Yang, Jianping; Zhao, Yongchun; Zhang, Junying published an article in 2021. The article was titled 《Elemental mercury removal from simulated coal-fired flue gas by modified tonstein in coal seam》, and you may find the article in Fuel.Category: copper-catalyst The information in the text is summarized as follows:

Tonstein in coal seam (TCS) is a kind of mining solid waste, which was developed to a novel adsorbent (CuBr2-TCS) by using copper bromide modification. In this paper, CuBr2-TCS was subjected to elemental mercury (Hg0) removal experiment in simulated coal-fired flue gas (SFG). Several characterization methods were used to determine the mineralogical characteristics of TCS and reaction mechanisms. In-depth, the Hg0 removal performances of CuBr2-TCS under different flue gas components were explored. The results revealed that CuBr2-TCS exhibited 92.1% and 78.3% Hg0 removal efficiency in dry and wet SFG, resp. HCl and O2 facilitated Hg0 removal performance of CuBr2-TCS by supplementing oxygen atoms and halogens, resp., accompanying some intermediate transition products such as Cu2OBr2. SO2 played a serious suppressive role. SO2 acting alone or NO and SO2 acting simultaneously caused irreversible changes in the surface functional groups that formed active sites with NO. However, the thermal stability of the adsorbed mercury on the adsorbent which was spent in N2 + SO2 + O2 atmosphere became better. In addition, the spent adsorbent that first went through the Hg0 removal process in N2 + NO atm., exhibited higher Hg0 removal efficiency in N2 + SO2 + NO atm. than that first reacted in N2 + SO2 atmosphere. CuBr2-TCS is a cost-effective adsorbent for the Hg0 abatement from the coal-fired flue gas (CFG). In the experiment, the researchers used Cupric bromide(cas: 7789-45-9Category: copper-catalyst)

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.Category: copper-catalyst

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

《Near-infrared-emitting CIZSe/CIZS/ZnS colloidal heteronanonail structures》 was published in Nanoscale in 2020. These research results belong to Bai, Xue; Purcell-Milton, Finn; Gun’ko, Yurii K.. SDS of cas: 13395-16-9 The article mentions the following:

Multicomponent quantum nanostructures have attracted significant attention due to their potential applications in photovoltaics, optoelectronics and bioimaging. However, the preparation of anisotropic quaternary nanoheterostructures such as Cu-In-Zn-S(Se) (CIZS and CIZSe) is still very poorly explored and understood. Here, we report the synthesis and studies of NIR emissive CIZSe/CIZS/ZnS core/shell/shell nanoheterostructures with a unique hetero-nanonail (HNN) morphol. In our approach, wurtzite (WZ) CIZSe/CIZS core/shell QDs have been prepared by depositing a CIZS shell onto a previously synthesized chalcopyrite CIZSe QD core using a seeded growth technique. Following careful control of the ZnS shell growth resulted in the formation of the distinct nail-like CIZSe/CIZS/ZnS nanoheterostructure, where the CIZSe/CIZS core/shell QD is located near the ”head” of the nail. The emission in the NIR region of the CIZSe/CIZS/ZnS nanocrystals is assigned to the CIZSe/CIZS core/shell quantum nanostructure. The CIZSe/CIZS/ZnS HNNs are particularly interesting due to a range of potential applications including bioimaging, biosensing, energy harvesting and NIR photodetectors. Finally, we also report the successful controlled growth of gold nanoparticles on the surface of the CIZSe/CIZS/ZnS nanonail-like heterostructure and the investigation of the resulting multimodal nanocomposites. In the experiment, the researchers used many compounds, for example, 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”

《Seed-mediated growth of heterostructured Cu1.94S-MS (M = Zn, Cd, Mn) and alloyed CuNS2 (N = In, Ga) nanocrystals for use in structure- and composition-dependent photocatalytic hydrogen evolution》 was published in Nanoscale in 2020. These research results belong to Zhu, Dongxu; Ye, Haihang; Liu, Zheming; Liu, Jun; Fu, Hao; Huang, Yanbin; Teng, Feng; Wang, Zhijie; Tang, Aiwei. Product Details of 13395-16-9 The article mentions the following:

Multinary copper-based chalcogenide nanocrystals (NCs) as light-driven photocatalysts have attracted extensive research interest due to their great potential for generating sustainable energy without causing environmental concerns. However, systematic studies on the growth mechanism and related photocatalytic activities involving different valent metal ions (either M2+ or N3+) as foreign cations and monoclinic Cu1.94S NCs as the ‘parent lattice’ have rarely been carried out. In this work, we report an effective seed-mediated method for the synthesis of heterostructured Cu1.94S-MS NCs (M = Zn, Cd and Mn) and alloyed CuNS2 NCs (N = In and Ga). A typical cation exchange process took place prior to the growth of heterostructured NCs, while further inter-cation diffusion occurred only for the alloyed NCs. When compared with Cu1.94S NCs, all the heterostructured Cu1.94S-MS NCs and CuGaS2 NCs showed enhanced photocatalytic activities toward hydrogen production by water splitting, owing to their tailored optical band gaps and energy level alignments. Although optically favored, CuInS2 ANCs were not comparable to others due to their low conduction band min. for the reduction of H2O to H2. In the experiment, the researchers used many compounds, for example, Bis(acetylacetone)copper(cas: 13395-16-9Product Details 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. Product Details of 13395-16-9

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

Deng, Zicheng; Lin, Jou; Bud’ko, Sergey L.; Webster, Brent; Kalin, Tanya V.; Kalinichenko, Vladimir V.; Shi, Donglu published their research in Cancers in 2021. The article was titled 《Dual Targeting with Cell Surface Electrical Charge and Folic Acid via Superparamagnetic Fe3O4@Cu2-xS for Photothermal Cancer Cell Killing》.Product Details of 13395-16-9 The article contains the following contents:

A major challenge in cancer therapy is to achieve high cell targeting specificity for the highest therapeutic efficacy. Two major approaches have been shown to be quite effective, namely, (1) bio-marker mediated cell targeting, and (2) elec. charge driven cell binding. The former utilizes the tumor-specific moieties on nano carrier surfaces for active targeting, while the latter relies on nanoparticles binding onto the cancer cell surfaces due to differences in elec. charge. Cancer cells are known for their hallmark metabolic pattern: high rates of glycolysis that lead to neg. charged cell surfaces. In this study, the nanoparticles of Fe3O4@Cu2-xS were rendered pos. charged by conjugating their surfaces with different functional groups for strong electrostatic binding onto the neg.-charged cancer cells. In addition to the pos. charged surfaces, the Fe3O4@Cu2-xS nanoparticles were also modified with folic acid (FA) for biomarker-based cell targeting. The dual-targeting approach synergistically utilizes the effectiveness of both charge- and biomarker-based cell binding for enhanced cell targeting. Further, these superparamagnetic Fe3O4@Cu2-xS nanoparticles exhibit much stronger IR absorptions compared to Fe3O4, therefore much more effective in photothermal therapy. The experimental process involved the reaction of Bis(acetylacetone)copper(cas: 13395-16-9Product Details 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.Product Details of 13395-16-9

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

Just, Justus; Coughlan, Claudia; Singh, Shalini; Ren, Huan; Muller, Oliver; Becker, Pascal; Unold, Thomas; Ryan, Kevin M. published their research in ACS Nano in 2021. The article was titled 《Insights into Nucleation and Growth of Colloidal Quaternary Nanocrystals by Multimodal X-ray Analysis》.Safety of Bis(acetylacetone)copper The article contains the following contents:

Insights in the nucleation and growth during synthesis of anisotropic Cu2ZnSnS4 nanocrystals were revealed by simultaneously performing in situ x-ray absorption spectroscopy (XAS) and small-angle x-ray scattering (SAXS). Real-time XAFS reveals that upon thiol injection into the reaction flask, a key Cu thiolate intermediate species is formed within fractions of seconds, which decomposes further within a narrow temperature and time window to form Cu sulfide nanocrystals. These nanocrystals convert into Cu2ZnSnS4 nanorods by sequentially incorporating Sn and Zn. Real-time SAXS and ex situ TEM of aliquots corroborate these findings. Combined in situ x-ray absorption and small-angle x-ray scattering enables the understanding of mechanistic pathways in colloidal nanocrystal formation. 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”

《Ultrasmall Alloy Nanozyme for Ultrasound- and Near-Infrared Light-Promoted Tumor Ablation》 was written by Jana, Deblin; Wang, Dongdong; Bindra, Anivind Kaur; Guo, Yi; Liu, Jiawei; Zhao, Yanli. Category: copper-catalystThis research focused onultrasmall alloy nanozyme ultrasound IR tumor ablation; alloy; chemodynamic therapy; nanozyme; photothermal therapy; ultrasound. The article conveys some information:

The therapeutic effect of chemodynamic therapy (CDT) is significantly restricted by the stern reaction conditions and slow reaction rate of the Fenton reaction (pH 3-4). Herein, we report an ultrasmall trimetallic (Pd, Cu, and Fe) alloy nanozyme (PCF-a NEs) possessing dynamic active-site synergism, thus exhibiting a cascade glutathione peroxidase and peroxidase (POD) mimicking activities in circumneutral pH. PCF-a NEs exhibit photothermally augmented POD property and high photothermal conversion efficiency (62%) for synergistic tumor cell apoptosis. In addition, ultrasound can also enhance the mass transfer at active catalytic sites of PCF-a NEs, in turn accelerating Fenton-like reaction for tumor-specific CDT. This work provides a strategy for engineering alloy nanozymes in a bioinspired way for the amplification of intratumor reactive oxygen species in response to external stimuli, demonstrating enhanced efficiency for the inhibition of tumor growth in vitro and in vivo. The results came from multiple reactions, including the reaction of 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”

In 2019,Nanoscale included an article by Liu, Zheming; Liu, Jun; Huang, Yanbin; Li, Jing; Yuan, Yi; Ye, Haihang; Zhu, Dongxu; Wang, Zhijie; Tang, Aiwei. Computed Properties of C10H16CuO4. The article was titled 《From one-dimensional to two-dimensional wurtzite CuGaS2 nanocrystals: non-injection synthesis and photocatalytic evolution》. The information in the text is summarized as follows:

Multinary copper-based chalcogenides exhibit significant performance in photocatalytic hydrogen evolution due to their suitable optical bandgap for visible light absorption and environmentally friendly character. Herein, high-quality wurtzite CuGaS2 (CGS) nanocrystals (NCs) were synthesized by using a one-step heating-up process without any injection, and the morphol. could be tuned from one-dimensional (1D) to two-dimensional (2D) by precise choice of surface ligands and gallium precursors. The formation mechanism of CGS NCs was studied comprehensively by means of the temporal-evolution of the morphol., crystal structure and optical absorption results. The reaction started from djurleite Cu31S16 NCs, and then proceeded with the formation of Cu31S16-CGS heteronanostructures (HNS), and finally the transformation from HNS to monophasic CGS nanorods took place with prolonging of the synthesis time. The optical bandgap and the energy level of the different-dimensional CGS NCs exhibited a strong dependence on the morphol. change, which correlated with the percentage of the exposed {001} and {100} facets. The theor. calculation based on d. functional theory (DFT) revealed that the (001) surface facilitated the charge transport rather than the (100) surface, which was consistent with the electrochem. impedance spectroscopy (EIS) results. As a result, the 2D CGS nanoplates with more exposed {001} facets exhibited an attractive photocatalytic hydrogen production activity under simulated solar illumination as compared to 1D and quasi-2D counterparts. This study demonstrates that control over the dimension of I-III-V group semiconductor NCs could lead to a significant improvement of the photocatalytic hydrogen evolution.Bis(acetylacetone)copper(cas: 13395-16-9Computed Properties of C10H16CuO4) 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. Computed Properties of C10H16CuO4

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

《Boosting Potassium Storage Performance of the Cu2S Anode via Morphology Engineering and Electrolyte Chemistry》 was written by Peng, Qingkui; Zhang, Shipeng; Yang, Hai; Sheng, Binbin; Xu, Rui; Wang, Qingsong; Yu, Yan. COA of Formula: C10H16CuO4 And the article was included in ACS Nano in 2020. The article conveys some information:

Transition metal sulfides (TMSs) have been demonstrated as attractive anodes for potassium-ion batteries (KIBs) due to the high capacity, abundant resource, and excellent redox reversibility. Unfortunately, practical implementation of TMSs to KIBs is still hindered by the unsatisfactory cyclability and rate performance which result from the vast volume variation during charge/discharge processes. Herein, a uniform nitrogen-doped carbon coated Cu2S hollow nanocube (Cu2S@NC) is designed as an anode material for the KIB, which displays an outstanding cycle performance (317 mAh g-1 after 1200 cycles at 1 A g-1) and excellent rate capacity (257 mAh g-1 at 6 A g-1) in a half-cell. The hollow nanosized structure can both shorten the diffusion length of potassium ions/electrons and buffer the volume expansion upon cycling. Besides, the high concentration electrolyte is beneficial to form the stable solid electrolyte interphase (SEI) film, reducing the interface impedance and enhancing the cycling stability. Ex situ transmission electron microscopy (TEM) and ex situ X-ray diffraction (XRD) reveal the reaction mechanism of Cu2S@NC. In addition to this study using Bis(acetylacetone)copper, there are many other studies that have used Bis(acetylacetone)copper(cas: 13395-16-9COA of Formula: C10H16CuO4) 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. COA of Formula: C10H16CuO4

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

《Edge Enrichment of Ultrathin 2D PdPtCu Trimetallic Nanostructures Effectuates Top-Ranked Ethanol Electrooxidation》 was written by Wang, Wei; Zhang, Xue; Zhang, Yuhui; Chen, Xiaowei; Ye, Jinyu; Chen, Jiayu; Lyu, Zixi; Chen, Xuejiao; Kuang, Qin; Xie, Shuifen; Xie, Zhaoxiong. Name: Bis(acetylacetone)copper And the article was included in Nano Letters in 2020. The article conveys some information:

Atomic edge sites on two-dimensional (2D) nanomaterials display striking catalytic behavior, whereas edge engineering for 2-dimensional metal nanocatalysts remains an insurmountable challenge. Here the authors advance a 1-pot synthesis of ultrathin 2-dimensional PdPtCu trimetallic nanosheets and nanorings with escalating low-coordinated edge proportions from 11.74% and 23.11% to 45.85% as cutting-edge EtOH oxidation reaction (EOR) electrocatalysts. This in situ edge enrichment hinges on a competitive surface capping and etching strategy with integrated manipulation of the reaction kinetics. Electrocatalysis tests demystify an edge-relied EOR performance, where the edge-richest 9.0 nm-Pd61Pt22Cu17 nanorings attain an exceptional activity (12.42 A mg-1Pt+Pd, 20.2 times that of com. Pt/C) with substantially improved durability. Molecularly mechanistic studies certify that the unsaturated edge sites on these 2-dimensional catalysts prevail, triggering the C-C bond scission and succeeding CO removal to facilitate a 12-electron-transferring EOR process. This study introduces the metal-edge-driven concept and enables the edge sites on 2-dimensional multimetallic nanocatalysts technique to design versatile heterocatalysts. After reading the article, we found that the author used Bis(acetylacetone)copper(cas: 13395-16-9Name: Bis(acetylacetone)copper)

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. Name: Bis(acetylacetone)copper

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

In 2019,Langmuir included an article by Kang, Hyeongeun; Jeong, Wonwoo; Hong, Daewha. Application of 7789-45-9. The article was titled 《Antifouling Surface Coating Using Droplet-Based SI-ARGET ATRP of Carboxybetaine under Open-Air Conditions》. The information in the text is summarized as follows:

The formation of a dense zwitterionic brush through surface-initiated atom transfer radical polymerization (SI-ATRP) is a typical graft-from approach used to achieve antifouling surfaces with high fidelity; however, their air-tightness may cause inconvenience to users. In this context, activator regenerated by electron transfer (ARGET) ATRP is emerging as an alternative surface-coating tool because limited amount of air is allowed to form a dense polymer brush. However, the degree of air tolerance that can ensure a thick polymer brush has not been clearly defined, limiting its practical usage under ambient-air conditions. In this study, we investigated the SI-ARGET ATRP of carboxybetaine (CB) by changing the air conditions, along with the air-related parameters, such as the concentration of the reducing agent, the volume of the polymerization solution (PS), or the solvent composition, and correlated their effects with the poly(CB) thickness. Based on the optimized reaction conditions, a poly(CB) brush with reliable thickness was feasibly formed even under open-air conditions without a degassing step. In addition, a microliter droplet (∼100 μL) of PS was sufficient to proceed with the SI-ARGET ATRP for the covering of a poly(CB) brush on the surface area of interest. By applying an optimized SI-ARGET ATRP of CB, antifouling was feasibly achieved in the surface region of interest using an array to form a large surface area under fully exposed air conditions. In other words, optimized SI-ARGET ATRP enabled the formation of a thick poly(CB) brush on the surfaces of various dimensions under open-air conditions. In the experiment, the researchers used Cupric bromide(cas: 7789-45-9Application 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.Application of 7789-45-9

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