Month: November 2022

Naik, Keerti M.; Hashisake, Kanaru; Hamada, Takuya; Higuchi, Eiji; Inoue, Hiroshi published an article in 2022, the title of the article was Intermetallic PdZn nanoparticles loaded on deficient TiO2 nanosheets as a support: a bifunctional electrocatalyst for oxygen reduction in PEMFCs and the glycerol oxidation reactions.Name: 2,3-Dihydroxypropanoic acid And the article contains the following content:

Exploring simple and flexible methods to synthesize an oxygen reduction reaction (ORR) catalyst with high catalytic activity is of great significance for the large-scale application of fuel cells. Here we developed an intermetallic PdZn on a TiO2-x NS support catalyst by a simple strategy for large-scale production through an impregnation process involving low temperature annealing. This electrocatalyst prepared by a simple and single step exhibited better ORR activities in both acidic and alk. solutions at room temperature with a higher value of electrochem. active surface area (ECSA). The repeated square-wave potential cycling test at 80°C over 10 000 cycles confirmed the durability of the catalyst. The fuel cell using the PdZn/TiO2-x NS catalyst showed a high power d. of 855 mW cm-2, which exceeds that of the PdZn supported carbon catalyst. Also, the proposed catalyst showed excellent stability over more than 100 h in proton-exchange membrane fuel cell (PEMFC) performance. Thus, the proposed TiO2-x NSs will be an alternative to a carbon support in future PEMFC technol. Furthermore, PdZn/TiO2-x NSs also showed higher activity and stability for the glycerol oxidation reaction (GOR) and higher selectivity for glycerate production than PdZn/C. Hence, the PdZn/TiO2-x NS electrocatalyst opens up new avenues towards energy conversion devices such as DAFCs and metal-air batteries. This new study provides an opportunity for further research to rationally design more carbon free supported nanostructured intermetallics by using different transition metals for efficient electrochem. energy storage devices. The experimental process involved the reaction of 2,3-Dihydroxypropanoic acid(cas: 473-81-4).Name: 2,3-Dihydroxypropanoic acid

The Article related to palladium zinc nanoparticle titania catalyst support pemfc glycerol oxidation, Electrochemical, Radiational, and Thermal Energy Technology: Energy-Conversion Devices and Their Components and other aspects.Name: 2,3-Dihydroxypropanoic acid

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Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

On October 15, 2022, Chen, Xiong; Tang, Weinan; Cai, Lin; Zhu, Yuchen; Peng, Shaobo; Li, Xiaofei; Hu, Xiaoying; Qiao, Liang; Liu, Shujie published an article.Quality Control of 2,3-Dihydroxypropanoic acid The title of the article was Superdispersed NiCo2S4 nanoparticles anchored on reduced graphene oxide for efficient hydrogen evolution reaction in acidic and alkaline media. And the article contained the following:

Reasonable design and preparation of the earth abundant and efficient electrocatalysts for hydrogen production from the electrolysis of water is an effective solution to solve the growing global energy and environmental crisis. Herein, in order to increase the number of the active sites and fasten the charge transfer of NiCo2S4, a facile two-step solvothermal method is used to prepare superdispersed NiCo2S4 nanoparticles anchored on reduced graphene oxide (NCS/rGO) as low-cost and high-efficient electrocatalyst for hydrogen evolution reaction (HER). By modulating the amount of rGO, the as-prepared NCS/rGO composite shows high sp. surface area of 114.4 m2 g-1 and small particle size of 50-60 nm, which exhibits excellent HER activity with a lower overpotential of 115 mV at 10 mA cm-2 and a smaller charge transfer resistance of 12 Ω in acidic solution Addnl., in the case of alk. solution, the as-prepared NCS/rGO composite also exhibits a low overpotential of 241 mV and a small Tafel slope of 110 mV dec-1. The significantly improved HER performance of NCS/rGO composite can be ascribed to the constructed heterogeneous interface between NiCo2S4 nanoparticles and rGO, which can inhibit the aggregation of NiCo2S4 nanoparticles and enhance the intrinsic elec. conductivity In light of the excellent HER electrocatalytic performance, the inexpensive NCS/rGO composite might be regarded as a promising alternative in HER and other energy conversion and storage applications. The experimental process involved the reaction of 2,3-Dihydroxypropanoic acid(cas: 473-81-4).Quality Control of 2,3-Dihydroxypropanoic acid

The Article related to nickel cobalt sulfide reduced graphene oxide electrocatalyst hydrogen evolution, Electrochemical, Radiational, and Thermal Energy Technology: Energy-Conversion Devices and Their Components and other aspects.Quality Control of 2,3-Dihydroxypropanoic acid

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Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

On April 11, 2007, Smith, P. Griffin Jr.; Dhanuka, Varun V.; Hwang, Ha S.; Lim, Kwon Taek; Johnston, Keith P. published an article.Application of 2160-93-2 The title of the article was Tertiary Amine Esters for Carbon Dioxide Based Emulsions. And the article contained the following:

Tertiary amine esters, a new class of surfactants for CO2-based dispersions, stabilize carbon dioxide in water macroemulsions for several hours even at a CO2 d. as low as 0.74 g/mL (70 bar) at 298 K. The combination of a weakly hydrophilic tertiary amine, which is protonated by carbonic acid, and branched ester tails provides proper values of the hydrophilic-CO2-philic balance (HCB) for emulsion stabilization. The surfactant nitrilotripropane-1,2-diyl tripivalate (tBu-TIA) lowered the CO2-water interfacial tension to 2.6 mN/m as a result of the stubby architecture (low aspect ratio) of the surfactant tail, which helps block contact between water and carbon dioxide. The high level of methylation produces a smaller interfacial tension and greater emulsion stability relative to nitrilotripropane-1,2-diyl triacetate (TIA). Relative to the high-pressure CO2-water system with a pH 3.3, an increase in pH with the addition of NaOH decreases interfacial activity and reduces emulsion stability, as the surfactant is deprotonated. The adsorption isotherm shows a high interfacial area per surfactant mol. (400 Å2) as a result of the stubby structure of the surfactant. The extremely low aspect ratio of this surfactant compared to other hydrocarbon surfactants shields water from CO2 at the interface, resulting in a lower interfacial tension, and minimizes interactions between surfactant tail groups. These factors make these low-mol.-weight amine esters desirable for tunable CO2-in-water emulsions, as a replacement for more widely used fluorinated surfactants. The facile synthesis of a variety of tertiary amine esters makes this class of surfactants attractive for developing structure-property relationships. The experimental process involved the reaction of 2,2′-(tert-Butylazanediyl)diethanol(cas: 2160-93-2).Application of 2160-93-2

The Article related to tertiary amine surfactant carbon dioxide dispersion stabilization interfacial activity, Surface Active Agents and Detergents: Preparation, Analysis, and Properties Of Surfactants Other Than Soaps and other aspects.Application of 2160-93-2

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

On May 5, 2020, Zhang, Wenguang; Xing, Lidan; Chen, Jiawei; Zhou, Hebin; Liang, Shimin; Huang, Weiyi; Li, Weishan published an article.COA of Formula: C10H22S The title of the article was Improving the cyclic stability of MoO2 anode for sodium ion batteries via film-forming electrolyte additive. And the article contained the following:

Application of film-forming electrolyte additive has been demonstrated to be an effective and economical approach to improve the performances of lithium ion batteries. However, investigations on the effect of electrolyte additives on the performances of sodium ion batteries is very limited. In this work, with vinylene carbonate (VC) as electrolyte additive, the cyclic stability of MoO2 anode for sodium ion batteries is greatly improved. After 1000 cycles at 300 mAg-1, the capacity retention of MoO2 electrode achieves 96.5% in comparison with that of 20.1% without additive. The poor long-term cyclic performance of MoO2 is mainly ascribed to the sever electrolyte reduction reaction during cycling, which results in significantly increase of electrode polarization. The VC-induced solid electrolyte interphase film effectively suppresses the decomposition of baseline electrolyte, and therefore, hinders the increase of interfacial reaction resistance and improves the interfacial stability of MoO2 electrode. The experimental process involved the reaction of 1-Decanethiol(cas: 143-10-2).COA of Formula: C10H22S

The Article related to molybdenum oxide anode sodium ion battery vinylene carbonate additive, vinylene carbonate additive electrolyte molybdenum oxide anode, Electrochemical, Radiational, and Thermal Energy Technology: Energy-Conversion Devices and Their Components and other aspects.COA of Formula: C10H22S

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

On October 31, 2021, Qiu, Qianqian; Wang, Yanjuan; Gu, Guolong; Yu, Fan; Zhang, Shichao; Zhao, Yining; Ling, Bai published an article.Related Products of 621-37-4 The title of the article was Design, synthesis, and biological evaluation of novel FXR agonists based on auraptene. And the article contained the following:

Farnesoid X receptor (FXR) has been considered as an attractive target for metabolic disorder and liver injury, while many current FXR agonists suffer from undesirable side effects, such as pruritus. Therefore, it is urgent to develop new structure types different from current FXR agonists. In this study, a series of structural optimizations were introduced to displace the unstable coumarin and geraniol scaffolds of auraptene (AUR), a novel and safe FXR agonist. All of these efforts led to the identification of compound 14 (I), a potent FXR agonist with nearly fourfold higher activity than AUR. Mol. modeling study suggested that compound 14 fitted well with binding pocket, and formed the key ionic bond with His291 and Arg328. In acetaminophen-induced acute liver injury model, compound 14 exerts better therapeutic effect than that of AUR, which highlighting its pharmacol. potential in the treatment of drug-induced liver injury. The experimental process involved the reaction of 3-Hydroxyphenylacetic acid(cas: 621-37-4).Related Products of 621-37-4

The Article related to auraptene fxr agonist design synthesis, fxr, n-acetyl-p-aminophenol, Terpenes and Terpenoids: Monoterpenes (C10), Including Cannabinoids, Chrysanthemic Acids, and Iridoid Aglycons and other aspects.Related Products of 621-37-4

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

On September 30, 1992, Allen, K. W.; Cockburn, E. S.; Davidson, R. S.; Tranter, K. S.; Zhang, H. S. published an article.Product Details of 2160-93-2 The title of the article was Some new developments in radiation curing. And the article contained the following:

Decomposition of cationic photoinitiators in the solid state is used in a remote cure process i.e. one in which photoinitiator is not present in the polymerizable monomer. An application of this process to a dual cure system is described. Details are given of free radical polymerization reactions of ethylhexyl acrylate in aqueous solutions which produce latexes via both suspension and emulsion polymerization processes. Ways of improving the photosensitivity of poly(vinyl alc.) modified with styrylpyridinium groups utilizing mixed [2+2]cycloaddition reactions are reviewed. The experimental process involved the reaction of 2,2′-(tert-Butylazanediyl)diethanol(cas: 2160-93-2).Product Details of 2160-93-2

The Article related to crosslinking cationic photochem catalyst, polymerization catalyst photochem cationic, Chemistry of Synthetic High Polymers: Polymerization Kinetics, Mechanisms, Thermodynamics, Catalysis, Catalysts and other aspects.Product Details of 2160-93-2

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

On August 31, 2020, Agrawal, D.; De, S. K.; Singh, P. K.; Shrivastava, Y. published an article.Application In Synthesis of 2,4-Di-tert-butylphenol The title of the article was Synthesis of a novel post-metallocene titanium complex of chelating [ONOO]-type ligand and studies on the effect of an extra donor arm on its reactivity in aqueous emulsion polymerization. And the article contained the following:

In the present work, a new Ti complex LTiCl2 {LH2 = 2-(3,5-di-tert-butyl-2-hydroxybenzylamino)-succinic acid}-bearing tetradentate [ONOO] donors has been synthesized and used in the homopolymerization of Me methacrylate and styrene in aqueous emulsion. The effect of co-catalyst NaBPh4 with ion-pair BPh-4 was also studied on the catalytic activity. Moreover, synthesized complex has been characterized by 1H NMR, UV-visible spectroscopy, IR spectroscopy, high-resolution mass spectra and elemental anal. The fabricated polymers have been tested using different characterizations, viz. 1H NMR, 13C NMR, DSC, DLS, XRD and GPC anal. The GPC anal. reveals that polymer product obtained has high mol. weight, and the amorphous behavior of the polymer product was indicated by the XRD and DSC anal. In addition to this, kinetic parameters like activation energy and rate constant for polymethyl methacrylate have also been examined The experimental process involved the reaction of 2,4-Di-tert-butylphenol(cas: 96-76-4).Application In Synthesis of 2,4-Di-tert-butylphenol

The Article related to methyl methacrylate styrene polymerization metallocene titanium tetradentate ligand catalyst, Chemistry of Synthetic High Polymers: Polymerization Kinetics, Mechanisms, Thermodynamics, Catalysis, Catalysts and other aspects.Application In Synthesis of 2,4-Di-tert-butylphenol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

On January 31, 2013, Wang, Baozong; Wei, Jun; Qiu, Jun published an article.Formula: C8H19NO2 The title of the article was Preparation and properties of polyester-type polymeric thioxanthone photoinitiators. And the article contained the following:

2-(2, 3-Dihydroxy) propoxy-thioxanthone (HPTX), a thioxanthone monomer containing two active hydroxyl groups, was synthesized. Then, through step polymerization of HPTX, hexyl dichloride and N-substituted diethanolamine, polyester-type polymeric photoinitiators containing side-chain thioxanthone and in-chain coinitiator amine were obtained. Moreover, the influences of coinitiator amine structure on the photopolymerization were also studied. FT-IR and 1H-NMR analyses confirm the structures of polymeric photoinitiators. UV-Vis spectra show that the macromol. chain has no obvious effect on the maximal absorption of thioxanthone moieties. Photopolymerization of polyester acrylate resin (PEA), initiated by polyester-type polymeric thioxanthone photoinitiators, was studied through photo differential scanning calorimetry (photo-DSC). The results show that PET-HBTX can effectively initiate the photopolymerization of PEA. The experimental process involved the reaction of 2,2′-(tert-Butylazanediyl)diethanol(cas: 2160-93-2).Formula: C8H19NO2

The Article related to polymeric thioxanthone photoinitiator polyester acrylate polymerization kinetics preparation, Chemistry of Synthetic High Polymers: Polymerization Kinetics, Mechanisms, Thermodynamics, Catalysis, Catalysts and other aspects.Formula: C8H19NO2

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

On January 31, 2007, Hua, Guoxiong; Zhang, Qingzhi; McManus, Derek; Slawin, Alexandra M. Z.; Woollins, J. Derek published an article.SDS of cas: 4719-04-4 The title of the article was Improvement of the Fe-NTA sulfur recovery system by the addition of a hydroxyl radical scavenger. And the article contained the following:

The degradation of nitrilotriacetic acid (NTA), which results from the oxidation of hydroxyl radicals formed in the process, is a major deficiency in the present Fe-NTA system for the oxidation of hydrogen sulfide to sulfur by air. The degradation of NTA can be slowed down considerably by the addition of a hydroxyl radical scavenger. In this study, a series of inorganic and organic materials was tested as scavengers / inhibitors of hydroxyl radicals in attempts to improve the Fe-NTA system. The results showed that N-methylpyrrolidinone and ethylene glycol could be used as potentially powerful scavengers of hydroxyl radicals to improve the Fe-NTA system. The experimental process involved the reaction of 2,2′,2”-(1,3,5-Triazinane-1,3,5-triyl)triethanol(cas: 4719-04-4).SDS of cas: 4719-04-4

The Article related to hydrogen sulfide oxidation sulfur recovery nta degradation control, Fossil Fuels, Derivatives, and Related Products: Manufacture Of Gasoline Hydrocarbons (Including Catalysts Used) and other aspects.SDS of cas: 4719-04-4

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

On October 15, 1999, Roda, Gabriella; Riva, Sergio; Danieli, Bruno published an article.Name: Isochroman-3-ol The title of the article was Almond oxynitrilase-catalyzed transformation of aldehydes is strongly influenced by naphthyl and alkoxy substituents. And the article contained the following:

Different α- and β-substituted aldehydes have been submitted to the catalytic action of almond oxynitrilase (PaHNL), in order to explore the influence of a stereocenter already present in the substrate on the selectivity of this enzyme. The results indicate that naphthyl and alkoxy substituents in the α- and also in the β-position to the aldehyde group significantly influence the stereochem. outcome of the PaHNL-catalyzed transformation. The experimental process involved the reaction of Isochroman-3-ol(cas: 42900-89-0).Name: Isochroman-3-ol

The Article related to almond oxynitrilase catalyst transformation aldehyde cyanohydrin, cyanohydrin preparation almond oxynitrilase catalyst, Benzene, Its Derivatives, and Condensed Benzenoid Compounds: Aldehydes and Derivatives, Including Sulfur Analogs and other aspects.Name: Isochroman-3-ol

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts