Month: November 2022

On December 31, 2020, DeLeon, Michelle; Baldelli, Steve published an article.Electric Literature of 143-10-2 The title of the article was Electroreductive desorption of alkanethiols on gold and UPD copper/gold surfaces using in situ second harmonic generation. And the article contained the following:

The reductive desorption of three alkanethiols: 1-decanethiol (DT), 1-dodecanethiol (DDT), and 1-octadecanethiol (ODT) was studied. Real-time second harmonic generation (SHG) was used to monitor changes at the surface as the self-assembled monolayer was electrodesorbed from a gold and UPD Cu/Au electrode through cyclic voltammetry (CV). Before and after reductive desorption, samples are examined ex situ with sum frequency generation (SFG) spectroscopy, XPS, and contact angle (CA). These techniques confirmed the electrodesorption of short-chain alkanethiols, while long-chain alkanethiols were proven to remain near the surface of the electrode. However, a difference was observed for a DDT monolayer on the UPD Cu/Au electrode. While DDT was easily desorbed from a gold substrate, DDT on the UPD Cu/Au electrode behaved similarly to a long-chain alkanethiol on gold. Significantly, SHG was able to determine the relative alkanethiol coverage even while the desorption-features in the CV were obscured by the hydrogen evolution current. The experimental process involved the reaction of 1-Decanethiol(cas: 143-10-2).Electric Literature of 143-10-2

The Article related to alkanethiols gold copper second harmonic generation electroreductive desorption, Optical, Electron, and Mass Spectroscopy and Other Related Properties: Optical Properties (Linear) and other aspects.Electric Literature of 143-10-2

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Lien, Shui-Yang; Lin, Po-Chen; Chen, Wen-Ray; Liu, Chuan-Hsi; Sze, Po-Wen; Wang, Na-Fu; Huang, Chien-Jung published an article in 2022, the title of the article was Improving Optoelectrical Properties of PEDOT: PSS by Organic Additive and Acid Treatment.Reference of SweetPearlR P300 DC Maltitol And the article contains the following content:

This article demonstrates the change of structural and optical properties of poly(3,4-ethylene dioxythiophene): polystyrene sulfonate (PEDOT: PSS) by organic additive and acid treatment. The addition of sorbitol and maltitol can disperse the micelles of PEDOT: PSS. The mechanism of the bond-breaking reaction was investigated and a model for the bond-breaking reaction is also proposed. Furthermore, multiple formic acid treatments were found to reduce the PSS content of PEDOT: PSS, resulting in an enhancement in conductivity (4.2 x 104 S/m). The experimental process involved the reaction of SweetPearlR P300 DC Maltitol(cas: 585-88-6).Reference of SweetPearlR P300 DC Maltitol

The Article related to polyethylene dioxythiophene polystyrene sulfonate organic additive optoelec property, Optical, Electron, and Mass Spectroscopy and Other Related Properties: Optical Properties (Linear) and other aspects.Reference of SweetPearlR P300 DC Maltitol

Referemce:
Alcohol – Wikipedia,
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Chen, Pin-Ru; Lai, Kuo-Yang; Chen, Hsueh-Shih published an article in 2021, the title of the article was Roles of alcohols and existing metal ions in surface chemistry and photoluminescence of InP cores.Computed Properties of 143-10-2 And the article contains the following content:

Surface oxidation and chem. determine the optical properties of indium phosphide (InP) nanocrystals (NCs). In this study, existing metal ions from the reaction residuals and alcs. normally used in the washing process are investigated. It is found that existing metal ions and alcs. play key roles in the surface oxidation and potential surface reactions of aminophosphine-based InP NCs, which significantly affect their photoluminescence (PL), optical absorption and photo-stability. According to XPS anal., InP NCs after aging form InPOx oxide which could passivate the NC surface along with increased PL intensity and blue-shifted spectral peaks. Treating with the existing metal ions from reaction residuals and intentionally added alcs. (methanol or ethanol), InP NCs exhibit an enhanced PL quantum yield (QY) (~25 times, from 0.1% to 2.5%), unexpected red-shifted spectral peaks and improved photo-stability (~9 folds). The phenomenon is ascribed to the passivation effect of the ZnyIn1-yPOx layer formed from coupling of existing Zn2+ with the NC surface triggered by the alcs. The alcs. are found to facilitate the surface modification of amine-capped NCs and may be utilized as agents in NC surface modifications. The experimental process involved the reaction of 1-Decanethiol(cas: 143-10-2).Computed Properties of 143-10-2

The Article related to indium phosphide nanocrystal alc surface oxidation photoluminescence optical property, Optical, Electron, and Mass Spectroscopy and Other Related Properties: Optical Properties (Linear) and other aspects.Computed Properties of 143-10-2

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Alcohol – Wikipedia,
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On October 25, 2010, Uslu, Aylin; Coles, Simon J.; Davies, David B.; Esen, Muekremin; Hursthouse, Michael B.; Kilic, Adem published an article.Reference of 2-Methyl-2-propylpropane-1,3-diol The title of the article was Effect of gem 2,2′-disubstitution and base in the formation of spiro- and ansa-1,3-propandioxy derivatives of cyclotriphosphazenes. And the article contained the following:

The gem-dialkyl effect was studied in the reactions of cyclotriphosphazene, N3P3Cl6 1, with various 2,2′-derivatives of 1,3-propandiol, CXY(CH2OH)2, in either THF or DCM to form spiro (6-membered) and ansa (8-membered ring) derivatives The reactions were made with a number of sym.-substituted (X = Y, Me, Et, Bu and a malonate ester) and unsym.-substituted (X ≠ Y, Me/H, Ph/H, Me/Pr, Et/Bu and Br/NO2) 1,3-propandiols. The products were analyzed by 1H and 31P NMR spectroscopy and some of the spiro and ansa derivatives were also characterized by x-ray crystallog. Reactions of 1 with unsym.-substituted 1,3-propandiols gave two structural isomers of ansa-substituted compounds, both isomers (endo and exo) were structurally-characterized by x-ray crystallog. for the Et/Bu derivative The regioselectivity of the reaction is changed when the base is changed. The relative proportions of spiro and ansa compounds formed under different reaction conditions were quantified by 31P NMR measurements of the reaction mixtures The results were rationalized mainly in terms of the electronic effect of the substituents, whereas the steric effect has a secondary role in the formation of both spiro and ansa compounds The experimental process involved the reaction of 2-Methyl-2-propylpropane-1,3-diol(cas: 78-26-2).Reference of 2-Methyl-2-propylpropane-1,3-diol

The Article related to spiro ansa propandioxy cyclotriphosphazene preparation crystal mol structure, cyclocondensation cyclotriphosphazene propandiol gem dialkyl effect, Organometallic and Organometalloidal Compounds: Metal Heterocyclic Compounds and Cluster Compounds and other aspects.Reference of 2-Methyl-2-propylpropane-1,3-diol

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Alcohol – Wikipedia,
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On April 6, 2020, Shao, Yuewen; Wang, Junzhe; Du, Huining; Sun, Kai; Zhang, Zhanming; Zhang, Lijun; Li, Qingyin; Zhang, Shu; Liu, Qing; Hu, Xun published an article.HPLC of Formula: 111-29-5 The title of the article was Importance of Magnesium in Cu-Based Catalysts for Selective Conversion of Biomass-Derived Furan Compounds to Diols. And the article contained the following:

Selectively hydrogenating the carbonyl of furfural and opening of the furan ring is challenging but crucial for efficient conversion of furfural to pentanediols, the valuable chems. In this study, CuMgAl catalysts with highly dispersed Cu particles and tunable basic sites were synthesized with layered double hydroxides as precursors for hydrogenation of furfural to furfuryl alc. (FA) and the subsequent hydrogenolysis of FA to 1,2-pentanediol and 1,5-pentanediol. The presence of varied content of Mg in the catalyst promoted dispersion of copper oxide and exposure of metallic copper species, weakened interaction between copper oxides and the carrier, suppressed sintering of metallic copper species, and increased abundance of the basic sites, promoting the catalytic activity/selectivity/stability. Strong chem. adsorption of the furan ring in FA on basic sites of the catalyst suppressed hydrogenation of the furan ring and facilitated opening of the furan ring in FA, the rate-determining step for formation of the diols. High yields of 1,2-pentanediol and 1,5-pentanediol are achieved over the copper-based catalyst via the hydrogenolysis of furfuryl alc. The experimental process involved the reaction of Pentane-1,5-diol(cas: 111-29-5).HPLC of Formula: 111-29-5

The Article related to magnesium copper catalyst biomass furan diol, Industrial Organic Chemicals, Leather, Fats, and Waxes: Manufacture Of Industrial Organic Chemicals and other aspects.HPLC of Formula: 111-29-5

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Alcohol – Wikipedia,
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On May 31, 2022, Yang, Lihua; Jiang, Yuanyuan; Zhu, Zihui; Hou, Zhaoyin published an article.Synthetic Route of 473-81-4 The title of the article was Selective oxidation of glycerol over different shaped WO3 supported Pt NPs. And the article contained the following:

In this work, different shaped WO3 (rod-like, lamellar and cuboid) supported Pt catalysts were prepared in a facile routine and tested in the selective oxidation of glycerol in base-free aqueous solution Characterizations indicated that rod-like WO3 supported Pt catalyst (Pt/R-WO3) possesses higher surface area because of the formation of vertical pore channels and highly exposed plane (100), the deposited Pt atoms combined strongly with the terminal -W=O in rod-like WO3. These properties promoted the adsorption, storage and surface diffusion of oxygen over Pt/R-WO3 which exhibited the excellent activity for the selective oxidation of glycerol. And the higher amount of acid sites on the surface of Pt/R-WO3 enhanced the selectivity of glyceric acid. The calculated turnover frequency of each Pt atom in Pt/R-WO3 reached 946 h-1 at 60°C. The experimental process involved the reaction of 2,3-Dihydroxypropanoic acid(cas: 473-81-4).Synthetic Route of 473-81-4

The Article related to oxidation glycerol shaped wo3 supported platinum, Industrial Organic Chemicals, Leather, Fats, and Waxes: Manufacture Of Industrial Organic Chemicals and other aspects.Synthetic Route of 473-81-4

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Alcohol – Wikipedia,
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On May 20, 2020, Kuang, Bifeng; Zhang, Qian; Fang, Yanxiong; Bai, Yong; Qiu, Songbai; Wu, Ping; Qin, Yanlin; Wang, Tiejun published an article.Recommanded Product: Pentane-1,5-diol The title of the article was Ring Opening of Cyclic Ether for Selective Synthesis of Renewable 1,5-Pentanediol over Pt/WO3@SiO2 Catalysts. And the article contained the following:

In this paper, the WO3-embedded in mesoporous SiO2 framework (WO3@SiO2) was developed using facile modified sol-gel, and was further applied as the support of Pt/WO3@SiO2 catalysts during impregnation. The ring-opening of cyclic ether such as biomass-derived tetrahydrofurfuryl alc. (THFA), for selective synthesis of renewable 1, 5-pentanediol (1, 5-PeD), was efficiently accomplished over Pt/WO3@SiO2 catalysts. This special nanocomposite structure provided both abundant active sites and strong synergetic coupling, thus significantly boosting the catalytic performances. The effects of reaction parameters were also investigated on the catalytic performances, including W/Si molar ratio, reaction time, reaction temperature and reduction temperature The high THFA conversion of 82.9% and 1, 5-PeD selectivity of 72.9% were achieved under the optimized reaction conditions. The preliminary characterization results suggested that the Bronsted acid sites of HxWO3 species with proper acid amounts played an important role in controlling the selective ring-opening of THFA cyclic ether towards 1, 5-PeD. The experimental process involved the reaction of Pentane-1,5-diol(cas: 111-29-5).Recommanded Product: Pentane-1,5-diol

The Article related to ring opening catalyst cyclic ether renewable pentanediol, Industrial Organic Chemicals, Leather, Fats, and Waxes: Manufacture Of Industrial Organic Chemicals and other aspects.Recommanded Product: Pentane-1,5-diol

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On March 31, 2010, Nagendramma, Ponnekanti; Kaul, Savita; Bisht, R. P. S. published an article.COA of Formula: C7H16O2 The title of the article was Study of synthesised ecofriendly and biodegradable esters: fire resistance and lubricating properties. And the article contained the following:

Biodegradable esters have been synthesized using Polyols such as 2-methyl-2-Pr 1,3-propane diol, 2,2-di Me 1,3-propane diol, 1,1,1-[tris] hydroxyl Me propane, 1,1,1-[tris] hydroxyl Me ethane and carboxylic acids (C6-C12) both pure and their mixtures with indigenous ion exchange resin (Indion-130) catalyst. The products were characterized for their physico-chem. properties and were evaluated for their lubrication performance. These were then compared with VG-22 grade fire resistant hydraulic fluids (FRHFs). The products were found to have good potential for use as a base stock for formulations as FRHF of VG-22 grade. The experimental process involved the reaction of 2-Methyl-2-propylpropane-1,3-diol(cas: 78-26-2).COA of Formula: C7H16O2

The Article related to biodegradable ester fire resistance lubricating property, Industrial Organic Chemicals, Leather, Fats, and Waxes: Manufacture Of Industrial Organic Chemicals and other aspects.COA of Formula: C7H16O2

Referemce:
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On May 20, 2022, Yang, Dan; Liu, Xuan; Song, Fei; Dai, Yihu; Wan, Xiaoyue; Zhou, Chunmei; Yang, Yanhui published an article.Name: 2,3-Dihydroxypropanoic acid The title of the article was Chemoselective Oxidation of Glycerol over Platinum-Based Catalysts: toward the Role of Oxide Promoter. And the article contained the following:

The metal oxide promoters remarkably enhance the catalytic activity of supported Pt catalysts in the glycerol oxidation toward glyceric acid, whereas the primary factor that metal oxide promotes the reaction, as well as the kinetics relevant step remain indistinct. Herein, manganese dioxide (MnO2) is chosen as a model to uncover the role of promoter in the glycerol oxidation over Pt-based catalyst in alkali-free solution The results prove that the superior catalytic performance is mainly attributed to the increased synergistic interaction between Pt particles and the metal oxides to boost the activation of oxygen (not glycerol), while the increased dispersion shows slight effect. Furthermore, the detailed kinetic studies reveal that MnO2 is prone to accelerate the awkward step of glyceraldehyde to glyceric acid, and the lattice oxygen of MnO2 also involves in this particular step. The experimental process involved the reaction of 2,3-Dihydroxypropanoic acid(cas: 473-81-4).Name: 2,3-Dihydroxypropanoic acid

The Article related to platinum based catalyst glycerol chemoselective oxidation, Industrial Organic Chemicals, Leather, Fats, and Waxes: Manufacture Of Industrial Organic Chemicals and other aspects.Name: 2,3-Dihydroxypropanoic acid

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Alcohol – Wikipedia,
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On May 31, 2021, Cai, Xiang; Ke, Youbin; Wang, Bowei; Zeng, Yuyao; Chen, Ligong; Li, Yang; Bai, Guoyi; Yan, Xilong published an article.Electric Literature of 111-29-5 The title of the article was Efficient catalytic amination of diols to diamines over Cu/ZnO/γ-Al2O3. And the article contained the following:

Catalytic amination of diols with dimethylamine is a promising approach for the preparation of tetra-Me diamines. In this work, a series of Cu/ZnO/γ-Al2O3 catalysts were developed by co-precipitation and employed in the amination of 1,6-hexanediol (HDO) with dimethylamine (DMA) to N,N,N’,N’-tetramethyl-1,6-hexanediamine (TMHDA) in a fixed-bed reactor. Cu/ZnO/γ-Al2O3-20 exhibited remarkable catalytic performance. Nearly complete conversion of HDO was reached and 93% selectivity of TMHDA was obtained at 180°C. The excellent catalytic performance was attributed to the highly dispersion of Cu, which was promoted by doped ZnO. The results of characterizations (TEM, H2-TPR, XRD, XPS, etc.) indicated that doped ZnO could efficiently decrease the average particle size and improve the dispersion of Cu. The promoting effect could be ascribed to strong interaction between Cu and ZnO. The availability and effectiveness of Cu/ZnO/γ-Al2O3 catalyst offer a prospective way for the industrial production of tertiary diamines through amination of diols. The experimental process involved the reaction of Pentane-1,5-diol(cas: 111-29-5).Electric Literature of 111-29-5

The Article related to catalyst zinc oxide alumina copper amination diol diamine, Industrial Organic Chemicals, Leather, Fats, and Waxes: Manufacture Of Industrial Organic Chemicals and other aspects.Electric Literature of 111-29-5

Referemce:
Alcohol – Wikipedia,
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