Tag: 0-100

Rh single atoms/clusters confined in metal sulfide/oxide nanotubes as advanced multifunctional catalysts for green and energy-saving hydrogen productions was written by Nguyen, Dinh Chuong;Doan, Thi Luu Luyen;Prabhakaran, Sampath;Kim, Do Hwan;Kim, Nam Hoon;Lee, Joong Hee. And the article was included in Applied Catalysis, B: Environmental in 2022.Reference of 20427-59-2 This article mentions the following:

In this work, smart strategies are conducted to design advanced multifunctional electrocatalysts: Co₃S₄/CoO_x heterostructured nanosheets-assembled nanotube arrays on 3D framework integrated with single Rh atoms and subnanometer clusters. The catalyst can reach c.d. of 10 mA cm^-2 at low overpotentials of 248.2, and 56.1 mV for oxygen evolution reaction, and hydrogen evolution reaction, resp. The catalyst also shows very low potential of 1.32 V for urea oxidation reaction at 10 mA cm^-2. A water electrolyzer that achieves c.d. of 10 mA cm^-2 at small cell voltage of 1.45 V is prepared under action of the developed catalyst. We also conduct urea electrolysis assembled with the catalyst and find that the device requires a cell voltage of only 1.35 V to drive a c.d. of 10 mA cm^-2, proving the great potential of our catalyst for simultaneous energy-saving H₂ production and the treatment of urea-rich wastewater. In the experiment, the researchers used many compounds, for example, Cuprichydroxide (cas: 20427-59-2Reference of 20427-59-2).

Cuprichydroxide (cas: 20427-59-2) belongs to copper catalysts. Transition metal-catalyzed chemical transformation of organic electrophiles and organometallic reagents belong to the most important cross-coupling reaction in organic synthesis. Due to these characteristics, copper nanoparticles have generated a great deal of interest especially in the field of catalysis. Reference of 20427-59-2

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

Oxygen vacancies in Cu/TiO₂ boost strong metal-support interaction and CO₂ hydrogenation to methanol was written by Zhang, Chenchen;Wang, Letian;Etim, Ubong Jerome;Song, Yibing;Gazit, Oz M.;Zhong, Ziyi. And the article was included in Journal of Catalysis in 2022.Safety of Cuprichydroxide This article mentions the following:

How to efficiently activate and convert CO2 through hydrogenation to value-added chems. is a major challenge. This work investigates the role of oxygen vacancy (Ov) in the Cu/TiO₂ catalysts, which are promising for this reaction. The TiO_2-x support was pre-reduced in high-pressure H₂ gas at different temperatures to generate Ov with different concentrations Cu/TiO_2-x-500 with TiO₂ pre-reduced at 500 °C showed much higher CO₂ conversion and CH₃OH selectivity than the other Cu/TiO₂ catalysts. The Ov in the reduced TiO₂ induced a strong metal-support interaction (SMSI) between Cu and TiO₂ at relatively low temperatures Although the SMSI caused partial covering of the Cu nanoparticles by TiO_2-x, the Ov in the newly formed interface could facilitate the activation of the CO₂ mols. and promote the formation of the proper reaction intermediates for methanol formation. Various characterizations, including DFT calculations, revealed the detailed structural evolution of CO₂ to methanol on the Cu/TiO₂ catalyst, and it follows the Formate pathway. In the experiment, the researchers used many compounds, for example, Cuprichydroxide (cas: 20427-59-2Safety of Cuprichydroxide).

Cuprichydroxide (cas: 20427-59-2) belongs to copper catalysts. The evolution of transition metal catalysts has attained a stage of civilization that authorizes for an extensive scope of chemical bonds formation partners to be combined efficiently. The copper-mediated C-C, C-O, C-N, and C-S bond formation is a part of one oldest reaction, emphasizing the Ullmann cross-coupling reaction.Safety of Cuprichydroxide

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

Synthesis, structure and hydrogenation properties of Ni-Cu bimetallic nanoparticles was written by Kytsya, A. R.;Bazylyak, L. I.;Zavaliy, I. Yu.;Verbovytskyy, Yu. V.;Zavalij, P.. And the article was included in Applied Nanoscience in 2022.Formula: CuH2O2 This article mentions the following:

Abstract: Bimetallic Ni-Cu nanoparticles with different (Ni/Cu) ratio have been synthesized via fast and simple one-pot reducing Ni(OH)₂/Cu(OH)₂ pulp by hydrazine in water/ethylene glycol solutions Using SEM (SEM), it was found that all obtained nanopowders are polydisperse with the particles sizes within 20-70 nm and the mean diameter of particles slightly depends on the Ni/Cu ratio. Using XRD phase-structural anal., it was found that with increasing Cu amount in the initial mixture from 20 to 50%, the lattice parameter for Ni phase increases from 3.527 to 3.560 Å but the lattice parameter of Cu changes more slightly (3.594 … 3.606 Å). Besides, using precision EDX technique, it was found that obtained nanoparticles may be considered as a core-shell type in which a core consists of copper but a shell consists of a nickel-copper solution Hydrogenation properties of obtained Ni-Cu nanoparticles have been studied, and it has been shown that the initial capacity of Ni-Cu-NPs depends on the sp. surface area and compositions of the samples. In the experiment, the researchers used many compounds, for example, Cuprichydroxide (cas: 20427-59-2Formula: CuH2O2).

Cuprichydroxide (cas: 20427-59-2) belongs to copper catalysts. The evolution of transition metal catalysts has attained a stage of civilization that authorizes for an extensive scope of chemical bonds formation partners to be combined efficiently. Copper nanoparticles can also catalyze the coupling reaction of nitrogen-containing nucleophiles, phenols, thiols, xanthogenates, selenium ruthenium nucleophiles and the like.Formula: CuH2O2

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

Tuning Topological Spin Textures in Size-Tailored Chiral Magnet Insulator Particles was written by Baral, Priya R.;Ukleev, Victor;LaGrange, Thomas;Cubitt, Robert;Zivkovic, Ivica;Roennow, Henrik M.;White, Jonathan S.;Magrez, Arnaud. And the article was included in Journal of Physical Chemistry C in 2022.SDS of cas: 20427-59-2 This article mentions the following:

Topol. spin textures such as skyrmions hold high potential for use as magnetically active elements in diverse near-future applications. While skyrmions in metallic multilayers attract great attention in this context, unleashing the myriad potential of skyrmions for various applications requires the discovery and customization of alternative host system paradigms. Here, we developed and applied a chem. method to synthesize octahedral particles of the chiral insulating skyrmion host Cu₂OSeO₃ with both narrow size distribution and tailored dimensions approaching the nanoscale. Combining magnetometry and neutron scattering experiments with micromagnetic simulations, we show that the bulk phase diagram of Cu₂OSeO₃ changes dramatically below octahedral heights of 400 nm. Further, particle size-dependent regimes are identified where various topol. spin textures such as skyrmions, merons, and bobbers can stabilize, prior to a lower critical octahedral height of 1̃90 nm below which no topol. spin texture is found stable. These findings suggest conditions under which sparse topol. spin textures confined to chiral magnet nanoparticles can be stable and provide fresh potential for insulator-based application paradigms. In the experiment, the researchers used many compounds, for example, Cuprichydroxide (cas: 20427-59-2SDS of cas: 20427-59-2).

Cuprichydroxide (cas: 20427-59-2) belongs to copper catalysts. The transition metal-catalyzed chemical transformation of organic electrophiles and organometallic reagents has turned up as an exceedingly robust synthetic tool. Copper nanoparticles can also catalyze the coupling reaction of nitrogen-containing nucleophiles, phenols, thiols, xanthogenates, selenium ruthenium nucleophiles and the like.SDS of cas: 20427-59-2

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

Characterization, pathogenicity, and fungicide sensitivity of Alternaria isolates associated with preharvest fruit drop in California citrus was written by Camiletti, Boris X.;Lichtemberg, Paulo S. F.;Paredes, Juan A.;Carraro, Thiago A.;Velascos, Jhordan;Michailides, Themis J.. And the article was included in Fungal Biology in 2022.Electric Literature of CuH2O2 This article mentions the following:

Alternaria rot has been recently described as an emerging fungal disease of citrus causing significant damage in California groves. A survey was conducted to determine latent infections on fruits, twigs, and leaves and investigate their seasonal patterns during 2019 and 2020. On fruits, latent infections were more associated with the stem end than with the stylar end, except during spring when a significantly high percentage of flowers (86%) had latent infections. Latent infections on twigs varied markedly between years (28% in 2019 and 9.5% in 2020), while Alternaria spp. were also recovered from citrus leaves. Alternaria isolates collected during the survey were identified based on multigene sequence anal., confirming that Alternaria alternata and Alternaria arborescens are the two species associated with infections of citrus fruits. Of the 23 isolates, 19 were identified as A. alternata and demonstrated the dominance of this species over A. arborescens. Isolates representing populations of these two species were selected as representative isolates for physiol. and morphol. studies. A. alternata and A. arborescens showed similar conidial dimensions but differed in the number of conidia produced. Growth rates demonstrated that A. alternata grows faster than A. arborescens at all the temperatures evaluated, except at 25 and 35°C. The growth patterns were similar for both species. The sporulation rate of the Alternaria isolates was influenced differently by temperature This parameter also influenced conidial germination and appressorium formation, and no significant differences were observed between Alternaria species. Pathogenicity and aggressiveness tests on detached fruit demonstrated the ability of A. alternata and A. arborescens to cause internal lesions and produce fruit drop in the orchards with no quant. differences between them (disease severity indexes of 58 and 68%, resp.). The fungicide sensitivity tests showed that DMI fungicides are the most effective fungicides in reducing mycelial growth. The SDHI fungicides had intermediate activity against the mycelial growth but also suppressed spore germination. The spore germination assay suggested that some of the isolates included in this study might have some level of resistance to QoI and SDHI fungicides. The findings of this study provide new information about the pathogens associated with the excessive fruit drop recently observed in some California citrus groves. In the experiment, the researchers used many compounds, for example, Cuprichydroxide (cas: 20427-59-2Electric Literature of CuH2O2).

Cuprichydroxide (cas: 20427-59-2) belongs to copper catalysts. Copper has continued to be one of the most utilized and important transition metal catalysts in synthetic organic chemistry. Copper of different valence states can be used to catalyze the coupling reaction, especially the Ullmann coupling reaction. Electric Literature of CuH2O2

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

Chemically dezincified copper nanowires catalysts with competitive selectivity for ethylene production by carbon dioxide reduction reaction was written by Zhang, Shiji;Zhang, Rui;Yao, Yilin;Zong, Xin;Zhang, Jinqiu;Xiong, Yueping;Yang, Peixia;An, Maozhong. And the article was included in Ionics in 2022.COA of Formula: CuH2O2 This article mentions the following:

Electrochem. reduction of carbon dioxide is an attractive and challenging strategy to solve the problems of renewable energy storage and carbon neutral. However, activity, selectivity, and stability of present developing catalysts for production of C₂H₄ are not as high as required for practical applications. Herein, we report dezincified copper nanowires (pre-CuZn-CuNW) derived from an electrodeposited CuZn alloy by a wet chem. method for electrochem. reduction of carbon dioxide to C₂H₄. Compared with pre-Cu-CuNW (the copper nanowires derived from a bulk Cu), the pre-CuZn-CuNW significantly enhances the catalytic activity and the selectivity for C₂H₄. The partial normalized c.d. of the pre-CuZn-CuNW for production of C₂H₄ increases to 183 mA.cm^-2, which is about twice relative to pre-Cu-CuNW. The faradaic efficiency (FE) of the pre-CuZn-CuNW for C₂H₄ can be maintained over 46% for 24 h during carbon dioxide reduction reaction. The improved catalytic performance can be attributed to the formation of a special nanowire structure with larger electrochem. active surface area and higher intrinsic activity of the pre-CuZn-CuNW during the dealloying process. In the experiment, the researchers used many compounds, for example, Cuprichydroxide (cas: 20427-59-2COA of Formula: CuH2O2).

Cuprichydroxide (cas: 20427-59-2) belongs to copper catalysts. Transition metal-catalyzed chemical transformation of organic electrophiles and organometallic reagents belong to the most important cross-coupling reaction in organic synthesis. The copper-mediated C-C, C-O, C-N, and C-S bond formation is a part of one oldest reaction, emphasizing the Ullmann cross-coupling reaction.COA of Formula: CuH2O2

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

Superb electromagnetic shielding polymer nanocomposites filled with 3-dimensional p-phenylenediamine/aniline copolymer nanofibers@copper foam hybrid nanofillers was written by Yao, Feichong;Xie, Wenhao;Ma, Chao;Wang, Dedong;El-Bahy, Zeinhom M.;Helal, Mohamed H.;Liu, Hu;Du, Ai;Guo, Zhanhu;Gu, Hongbo. And the article was included in Composites, Part B: Engineering in 2022.Name: Cuprichydroxide This article mentions the following:

The polymer nanocomposites with 3-dimensional nanofillers can form a 3D network and attain a uniform distribution of nanofillers, which benefits the transfer of charge carriers and phonons as well as the dispersion of stress at a very low loading of nanofillers. These polymer nanocomposites with high mech. properties would have great potential for thermal and elec. conduction as well as electromagnetic interference (EMI) shielding. In this paper, the 3D epoxy nanocomposites are manufactured by stuffing epoxy resin into 3D p-phenylenediamine-aniline copolymer nanofibers@Cu foam (P-PANI@f-Cu) hybrid nanofillers that are constructed by electrophoretic deposition of phosphoric acid doped P-PANI copolymer nanofibers onto the surface of sodium hydroxide oxidized Cu foam. Benefiting from 3D continuous network of P-PANI@f-Cu hybrid nanofillers, the elec. conductivity and thermal conductivity of 3D P-PANI@f-Cu/epoxy nanocomposites with the P-PANI loading of 0.262 wt% could achieve 7.71 ± 0.04 S cm^-1 and 5.4670 ± 0.0085 W m^-1K^-1, resp., which are much better than that of pure epoxy (insulator and 0.2310 ± 0.0017 W m^-1K^-1, resp.) and epoxy composites filled with only Cu foam (4.46 ± 0.03 S cm^-1 and 2.7907 ± 0.0057 W m^-1K^-1, resp.). Meanwhile, with a thickness of 1.8 mm, the average total EMI shielding effectiveness (SE_T) of 3D P-PANI@f-Cu/epoxy nanocomposites in the X-band range reaches a high value of 66.14 dB, which is capable of effectively shielding the electromagnetic signal between Bluetooth earphone and smartphone in the practical application. Furthermore, the 3D P-PANI@f-Cu hybrid nanofillers can efficiently prevent the crack growth in the epoxy nanocomposites and improve their mech. properties including hardness and elastic modulus. In the experiment, the researchers used many compounds, for example, Cuprichydroxide (cas: 20427-59-2Name: Cuprichydroxide).

Cuprichydroxide (cas: 20427-59-2) belongs to copper catalysts. Copper catalyst has received great attention owing to the low toxicity and low cost. Copper nanoparticles can catalyze the Ullmann coupling reaction in a wide range of applications.Name: Cuprichydroxide

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

Covalent organic framework with Cu-containing compounds for enhancing flame retardancy and smoke suppression effects on epoxy resin was written by Cui, Mulan;Mu, Xiaowei;Cai, Wei;Wang, Xuan;Ye, Daolin;Xi, Jianchao;Hu, Yuan;Xing, Weiyi. And the article was included in Composites, Part A: Applied Science and Manufacturing in 2022.COA of Formula: CuH2O2 This article mentions the following:

To enhance the flame retardancy and smoke suppression effects of epoxy resin (EP), three inorganic compounds of copper modified covalent organic frameworks (COFs), COFs@CuO, COFs@Cu₂O, COFs@Cu(OH)₂ are synthesized. The flame retardancy of EP can be significantly uprated by adding only 2 wt% COFs@Cu₂O. The PHRR and THR yield of EP/COFs@Cu₂O decrease by 36.6% and 20.4% compared with that of unmixed EP, resp. The smoke d. of EP/COFs@CuO reduces by 54.3% compared with that of pure epoxy. Moreover, the peak CO yield (COPR) of EP/COFs@Cu₂O nanocomposites is 42.8% lower than that of unmixed EP. In addition, the impulse strength of EP/COFs@CuO augment 50.7% than that of pure epoxy, and the tensile strength of EP/COFs@CuO is 80.0% higher than that of EP/COFs. The synergy between metallic inorganic compounds and COFs is investigated. This work proves a guidance for preparation of high safety EP. In the experiment, the researchers used many compounds, for example, Cuprichydroxide (cas: 20427-59-2COA of Formula: CuH2O2).

Cuprichydroxide (cas: 20427-59-2) belongs to copper catalysts. Transition metal-catalyzed chemical transformation of organic electrophiles and organometallic reagents belong to the most important cross-coupling reaction in organic synthesis. The copper-mediated C-C, C-O, C-N, and C-S bond formation is a part of one oldest reaction, emphasizing the Ullmann cross-coupling reaction.COA of Formula: CuH2O2

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

Surface cavity effect on C₂H₄ formation from electrochemical reduction of CO₂ as studied using Cu₂O cubes was written by Cao, Guangwei;Cao, Xuerui;Shan, Mengqing;Li, Mei;Zhu, Xinli;Han, Jinyu;Ge, Qingfeng;Wang, Hua. And the article was included in Journal of Solid State Electrochemistry in 2022.Recommanded Product: 20427-59-2 This article mentions the following:

Surface morphol. of Cu-based catalysts is considered as an important factor affecting both activity and product selectivity of electrochem. reduction of CO₂. In this work, surface cavity effect on C₂H₄ formation was investigated using Cu₂O cubes: solid cubes, cavity cubes, and broken cubes, typically representing smooth surface, cavity surface, and rough surface. With respect of C₂H₄ selectivity, cavity cubes show the significantly enhanced faradaic efficiency (FE) of C₂H₄, which is 2.7 and 1.7 times higher than those for solid cubes and broken cubes resp. Moreover, a ratio of CO produced by CO₂ reduction reaction (CO₂RR) converted to CH₄ and C₂H₄ was calculated to assess the extent of CO further reduction for a catalyst. As noted, cavity cubes exhibited a highest ratio of 29.5%, in contrast with the lower ratio of 13.0% on broken cubes and 14.9% on solid cubes. Consequently, the role of surface cavity is reflected in two effects, the increased CO formation due to higher electrochem. surface area as compared to the smooth surface, and meanwhile the increased ratio of CO converted to hydrocarbons and alcs. due to porous feature as compared to the rough surface with a comparable high electrochem. active surface area (ECSA). What’s more, when applied in a flow cell reactor with a gas diffusion electrode, cavity cubes also achieved much higher C2 selectivity of 37.7% FE_C2 than solid cubes and broken cubes. Our work provides a facile strategy for improving the catalytic C₂₊ product selectivity of Cu₂O-based catalysts for CO₂RR through modifying surface morphol. Graphical abstract: [graphic not available: see fulltext]. In the experiment, the researchers used many compounds, for example, Cuprichydroxide (cas: 20427-59-2Recommanded Product: 20427-59-2).

Cuprichydroxide (cas: 20427-59-2) belongs to copper catalysts. Transition metal-catalyzed chemical transformation of organic electrophiles and organometallic reagents belong to the most important cross-coupling reaction in organic synthesis. Copper nanoparticles can also catalyze the coupling reaction of nitrogen-containing nucleophiles, phenols, thiols, xanthogenates, selenium ruthenium nucleophiles and the like.Recommanded Product: 20427-59-2

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

In-situ-derived self-selective electrocatalysts for solar formate production from simultaneous CO₂ reduction and methanol oxidation was written by Li, Zaiqi;Gao, Yugang;Meng, Xiao;Sun, Bin;Song, Kepeng;Wang, Zeyan;Liu, Yuanyuan;Zheng, Zhaoke;Wang, Peng;Dai, Ying;Cheng, Hefeng;Huang, Baibiao. And the article was included in Cell Reports Physical Science in 2022.Formula: CuH2O2 This article mentions the following:

Solar-driven electrochem. CO₂ reduction reaction (CO₂RR) offers a promising route to achieve a carbon-neutral and energy-sustainable future. However, the anodic oxygen evolution reaction (OER) hinders the energy input utilization, and the added value of the product O₂ is low. Here, through a combined CO₂RR and selective methanol oxidation reaction (MOR), we report an efficient and unassisted solar-driven simultaneous cathodic and anodic production of formate on hydroxide-derived self-selective Cu-based electrocatalysts. Upon in situ treatments, Cu(OH)₂-derived Cu (HOD-Cu) and CuO (HOD-CuO) electrocatalysts display efficient CO₂RR and MOR performances at a wide potential range, resp. The rational integration of the electrolyzer to a triple junction GaInP/GaAs/Ge photovoltaic cell could realize efficient solar-driven formate synthesis, leading to a solar-to-formate (STF) conversion efficiency of 3.63% and a production rate of 0.194 mmol h^-1 cm^-2. This work demonstrates a simultaneous formate generation by coupling CO₂RR and MOR, providing new paths for solar-driven electrochem. synthesis. In the experiment, the researchers used many compounds, for example, Cuprichydroxide (cas: 20427-59-2Formula: CuH2O2).

Cuprichydroxide (cas: 20427-59-2) belongs to copper catalysts. Transition metal-catalyzed chemical transformation of organic electrophiles and organometallic reagents belong to the most important cross-coupling reaction in organic synthesis. Copper of different valence states can be used to catalyze the coupling reaction, especially the Ullmann coupling reaction. Formula: CuH2O2

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