Month: December 2021

Authors Khawaji, M; Chadwick, D in ELSEVIER published article about LIQUID-PHASE OXIDATION; TITANATE NANOTUBES; BIMETALLIC CATALYSTS; GOLD; NANOPARTICLES; STABILITY; CHEMISTRY; PALLADIUM; TIO2; SIO2 in [Khawaji, Motaz; Chadwick, David] Imperial Coll London, Dept Chem Engn, London SW7 2AZ, England in 2019, Cited 41. Quality Control of Benzyl ether. The Name is Benzyl ether. Through research, I have a further understanding and discovery of 103-50-4

The dependence of the selective oxidation catalytic activity of Au-Pd supported on titanate nanotubes on the catalyst preparation method has been investigated. The most active Au-Pd/Ti-NT catalyst for the selective oxidation of benzyl alcohol is shown to be that prepared using colloidal synthesis and immobilization with PVA as a stabilizer, which has markedly superior catalytic activity compared to catalysts prepared by deposition-precipitation, adsorption, and dry impregnation methods. Au-Pd NPs stabilized by graphene oxide sheets and immobilized on Ti-NT has also been studied and while not optimum shows promising catalytic activity. The superior catalytic activity of the catalysts prepared by colloidal synthesis is attributed to the high metal dispersion on the external surfaces of Ti-NT, the narrow particle size distribution, and the high degree of Au-Pd alloying. This work also demonstrates that in the adsorption method of preparation using HAuCl4.3H(2)O and PdCl2 precursors, the uptake of Pd ions in solution by Ti-NT is proportional to the sodium content in Ti-NT, which implies that Na is involved in an ion-exchange reaction with Pd ions.

Quality Control of Benzyl ether. Bye, fridends, I hope you can learn more about C14H14O, If you have any questions, you can browse other blog as well. See you lster.

Reference:
Ether – Wikipedia,
,Ether | (C2H5)2O – PubChem

I found the field of Environmental Sciences & Ecology; Public, Environmental & Occupational Health very interesting. Saw the article Comprehensive determination of polychlorinated biphenyls and brominated flame retardants in surface sediment samples from Hanoi urban area, Vietnam: Contamination status, accumulation profiles, and potential ecological risks published in 2021.0. Formula: C12H10O, Reprint Addresses Hoang, AQ (corresponding author), Ehime Univ, Ctr Adv Technol Environm, Grad Sch Agr, 3-5-7 Tarumi, Matsuyama, Ehime 7908566, Japan.; Le, TPQ (corresponding author), Vietnam Acad Sci & Technol, Inst Nat Prod Chem, Lab Environm Chem, 18 Hoang Quoc Viet, Hanoi 10000, Vietnam.. The CAS is 101-84-8. Through research, I have a further understanding and discovery of Diphenyl oxide

Comprehensive and updated information about polychlorinated biphenyls (PCBs) and brominated flame retardants (BFRs) in surface sediments from Hanoi, the capital city of Vietnam, is rather scarce. In this study, concentrations and profiles of 209 PCBs, 41 polybrominated diphenyl ethers (PBDEs), 2,2 ‘,4,4 ‘,5,5 ‘-hexabromobiphenyl (BB-153), hexabromocyclododecane (HBCD), pentabromoethylbenzene (PBEB), 1,2-bis(2,4,6tribromophenoxy)ethane (BTBPE), and decabromodiphenyl ethane (DBDPE) were determined in sediment samples collected from the Red River and some inner-city rivers of Hanoi. Concentrations (ng/g dry weight, median and range) of pollutants decreased in the order: DBDPE (28; not detected ND – 59) approximate to PCBs (27; 1.7-50) > PBDEs (23; 0.20-61) > HBCD (1.2; ND – 5.2) > BTBPE (0.46; ND – 3.6) > BB-153 (0.004; ND – 0.014) > PBEB (ND). Pollutant levels in the inner-city river sediments were about one to two orders of magnitude higher than those measured in the Red River main stream sediments. Tri-to hexa-CBs are major homologs but detailed profiles vary between individual samples, reflecting source and/or seasonal variations. CB-11 and CB-209 were found at higher proportions in sediments than in technical PCB mixtures, suggesting their novel sources from pigments. Deca-BDE and DBDPE are the most predominant BFRs with an increasing trend predicted for DBDPE. A preliminary ecological risk assessment was conducted for these pollutants in sediments. Total PCBs and deca-BDE in a few inner-city river sediments may exhibit adverse effects on benthic organisms, but no serious risk was estimated in general.

Bye, fridends, I hope you can learn more about C12H10O, If you have any questions, you can browse other blog as well. See you lster.. Formula: C12H10O

Reference:
Ether – Wikipedia,
,Ether | (C2H5)2O – PubChem

HPLC of Formula: C14H14O. Authors Bilodeau, S; Florek, J; Kleitz, F in WILEY-V C H VERLAG GMBH published article about in [Bilodeau, Simon] Laval Univ, Dept Chem, Quebec City, PQ G1V 0A6, Canada; [Florek, Justyna; Kleitz, Freddy] Univ Vienna, Dept Inorgan Chem Funct Mat, Fac Chem, Wahringer Str 42, A-1090 Vienna, Austria in 2021, Cited 75. The Name is Benzyl ether. Through research, I have a further understanding and discovery of 103-50-4

Nanocasting is a convenient way for preparing highly porous, nanostructured soft materials. Mesoporous polymer nanocasts have been reported for over a decade, however, several aspects remain to be explored further. To do so, we report a comprehensive investigation of the physicochemical characteristics of high surface area functional organic polymers and copolymers obtained by nanocasting. Divinylbenzene, styrene and chloromethyl styrene were selectively polymerized within the pores of mesoporous SBA-15 or KIT-6 silicas. Following template removal, the resulting materials were characterized. The nanocast mesoporous polymers were also modified to introduce functional groups. The success of the functionalization was assessed analytically and by model catalytic tests. The study points to the advantages of the hard templating method for structuring organic materials but also its limitations.

HPLC of Formula: C14H14O. Bye, fridends, I hope you can learn more about C14H14O, If you have any questions, you can browse other blog as well. See you lster.

Reference:
Ether – Wikipedia,
,Ether | (C2H5)2O – PubChem

Quality Control of Diphenyl oxide. Authors Wu, D; Wang, QY; Safonova, OV; Peron, DV; Zhou, WJ; Yan, Z; Marinova, M; Khodakov, AY; Ordomsky, VV in WILEY-V C H VERLAG GMBH published article about in [Wu, Dan; Wang, Qiyan; Zhou, Wenjuan; Yan, Zhen] CNRS Solvay, UMI 3464, Ecoefficient Prod & Proc Lab E2P2L, Shanghai 201108, Peoples R China; [Wu, Dan; Wang, Qiyan; Peron, Deizi, V; Khodakov, Andrei Y.; Ordomsky, Vitaly V.] Univ Lille, Univ Artois, CNRS, Cent Lille,ENSCL,UMR 8181,UCCS Unite Catalyse & C, F-59000 Lille, France; [Marinova, Maya] Univ Lille, Univ Artois, CNRS, INRAE,Cent Lille,FR2638,IMEC Inst Michel Eugene C, F-59000 Lille, France; [Safonova, Olga, V] Paul Scherrer Inst, CH-5253 Villigen, Switzerland in 2021.0, Cited 67.0. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8

The cleavage of C-O linkages in aryl ethers in biomass-derived lignin compounds without hydrogenation of the aromatic rings is a major challenge for the production of sustainable mono-aromatics. Conventional strategies over the heterogeneous metal catalysts require the addition of homogeneous base additives causing environmental problems. Herein, we propose a heterogeneous Ru/C catalyst modified by Br atoms for the selective direct cleavage of C-O bonds in diphenyl ether without hydrogenation of aromatic rings reaching the yield of benzene and phenol as high as 90.3 % and increased selectivity to mono-aromatics (97.3 vs. 46.2 % for initial Ru) during depolymerization of lignin. Characterization of the catalyst indicates selective poisoning by Br of terrace sites over Ru nanoparticles, which are active in the hydrogenation of aromatic rings, while the defect sites on the edges and corners remain available and provide higher intrinsic activity in the C-O bond cleavage.

Quality Control of Diphenyl oxide. Welcome to talk about 101-84-8, If you have any questions, you can contact Wu, D; Wang, QY; Safonova, OV; Peron, DV; Zhou, WJ; Yan, Z; Marinova, M; Khodakov, AY; Ordomsky, VV or send Email.

Reference:
Ether – Wikipedia,
,Ether | (C2H5)2O – PubChem

Product Details of 101-84-8. Authors Ghosh, P; Maity, T; Biswas, S; Debnath, R; Koner, S in PERGAMON-ELSEVIER SCIENCE LTD published article about in [Ghosh, Pameli; Maity, Tanmoy; Debnath, Rakesh; Koner, Subratanath] Jadavpur Univ, Dept Chem, Kolkata 700032, India; [Maity, Tanmoy] Indian Inst Sci, Solid State & Struct Chem Unit, Bangalore 560012, Karnataka, India; [Biswas, Saptarshi] Katwa Coll, Katwa 713130, W Bengal, India in 2021, Cited 120. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8

Hydrothermal treatment of gadolinium nitrate and 2,6-naphthalenedicarboxylic acid (H2NDC) afforded a new metal-organic framework compound, {[Gd-4(NDC)(6)(H2O)(6)]center dot 2H(2)O}n(1). Compound 1 has been characterized by single-crystal X-ray crystallography, elemental analysis, FT-IR spectroscopy, therrmogravimetric analysis (TGA) and powder X-ray diffraction analysis. It is crystallized in the monoclinic system with the P2(1)/n space group. Four crystallographically distinct Gd (III) centres are interconnected with each other through bridged carboxylato oxygen atoms and water molecules to form tetranuclear secondary building units, which are further connected through the carboxylato ligand and the network propagates along the crystallographic ac plane to form a 2D structure. Subsequent reinforcement from the remaining carboxylato oxygen atoms gives rise to a robust 3D framework structure. Thermogravimetric analysis demonstrates that compound 1 is fairly stable after dehydration under a nitrogen atmosphere. Notably, compound 1 is capable of catalyzing the O-arylation reaction efficiently between substituted phenols and bromoarene under heterogeneous conditions at 80 degrees C to afford unsymmetrical diarylethers. (C) 2020 Elsevier Ltd. All rights reserved.

Product Details of 101-84-8. Welcome to talk about 101-84-8, If you have any questions, you can contact Ghosh, P; Maity, T; Biswas, S; Debnath, R; Koner, S or send Email.

Reference:
Ether – Wikipedia,
,Ether | (C2H5)2O – PubChem

I found the field of Environmental Sciences & Ecology; Public, Environmental & Occupational Health very interesting. Saw the article Alternative halogenated flame retardants (AHFRs) in green mussels from the south China sea published in 2020.0. Application In Synthesis of Diphenyl oxide, Reprint Addresses Pan, CG (corresponding author), Guangxi Univ, Sch Marine Sci, Nanning 530004, Peoples R China.. The CAS is 101-84-8. Through research, I have a further understanding and discovery of Diphenyl oxide

Restrictions of legacy brominated flame retardants, such as polybrominated diphenyl ether (PBDE) and polybrominated biphenyl (PBB), have resulted in increased usage of alternative halogenated flame retardants (AHFRs). Consequently, AHFRs contamination has caused a major concern in the scientific community. However, there is limited information on their presence in marine mussels. In this study, we investigated the occurrence and distribution of polybrominated biphenyls (PBBs), AHFRs and dehalogenated products in green mussels collected from 22 locations in the northern South China Sea (SCS). Our results revealed that Sigma AHFRs were ubiquitous in green mussels with concentrations in the range of 1.08-7.71 ng/g lipid weight (lw). Among target AHFRs, hexabromobenzene (HBB), decabromodiphenyl (DBDPE) and dechlorane plus (DP) were predominant with their mean values of 1.19, 1.00 and 0.82 ng/g lw, respectively. There were negligible stereoisomer enrichments of DP in green mussels based on f(anti) values, indicating a limited bioaccumulation and metabolism of DP in green mussels. In comparison with other locations, concentrations of the AHFRs in green mussels determined here were at moderate levels. Additionally, there were significant linear relationships between some AHFRs (e.g., HBB and PBEB), suggesting their similar commercial applications and sources in the environment. The estimated daily intakes of AHFRs through consumption of green mussels by the local population in South China were 0.05-0.14 ng/kg body weight/day and 0.17-0.44 ng/kg body weight/day based on the mean and 95th concentrations, respectively. To the best of our knowledge, the present study is the first to report AHFRs and dehalogenated products in green mussels.

Application In Synthesis of Diphenyl oxide. Bye, fridends, I hope you can learn more about C12H10O, If you have any questions, you can browse other blog as well. See you lster.

Reference:
Ether – Wikipedia,
,Ether | (C2H5)2O – PubChem

I found the field of Environmental Sciences & Ecology; Toxicology very interesting. Saw the article Photodecomposition properties of brominated flame retardants (BFRs) published in 2020. Product Details of 101-84-8, Reprint Addresses Altarawneh, M (corresponding author), United Arab Emirates Univ, Dept Chem & Petr Engn, Sheikh Khabla bin Zayed St, Al Ain 15551, U Arab Emirates.. The CAS is 101-84-8. Through research, I have a further understanding and discovery of Diphenyl oxide

This study investigates the geometric and electronic properties of selected BFRs in their ground (S-0) and first singlet excited (S-1) states deploying methods of the density functional theory (DFT) and the time-dependent density functional theory (TDDFT). We estimate the effect of the S-0 -> S-1 transition on the elongations of the C-Br bond, identify the frontier molecular orbitals involved in the excitation process and compute partial atomic charges for the most photoreactive bromine atoms. The bromine atom attached to an who position in HBB (with regard to C-C bond; 2,2′,4,4′,6,6′-hexabromobiphenyl), TBBA (with respect to the hydroxyl group; 2,2′,6,6′-tetrabromobisphenol A), HBDE and BTBPE (in reference to C-O linkage; 2,2′,4,4′,6,6′-hexabromodiphenylether and 1,2-bis(2,4,6-tribromophenoxy)ethane, respectively) bears the highest positive atomic charge. This suggests that, these positions undergo reductive debromination reactions to produce lower brominated molecules. Debromination reactions ensue primarily in the aromatic compounds substituted with the highest number of bromine atoms owing to the largest stretching of the C-Br bond in the first excited state. The analysis of the frontier molecular orbitals indicates that, excitations of BFRs proceed via pi ->pi*, or pi ->sigma* or n ->sigma* electronic transitions. The orbital analysis reveals that, the HOMO-LUMO energy gap (EH-L) for all investigated brominesubstituted aromatic molecules falls lower (1.85-4.91 eV) than for their non-brominated analogues (3.39-8.07 eV), in both aqueous and gaseous media. The excitation energies correlate with the EH-L values. The excitation energies and EH-L values display a linear negative correlation with the number of bromine atoms attached to the molecule. Spectral analysis of the gaseous-phase systems reveals that, the highly brominated aromatics endure lower excitation energies and exhibit red shifts of their absorption bands in comparison to their lower brominated congeners. We attained a satisfactory agreement between the experimentally measured absorption peak (lambda(max)) and the theoretically predicted oscillator strength (lambda(max)) for the UV-Vis spectra. This study further confirms that, halogenated aromatics only absorb light in the UV spectral region and that effective photodegradation of these pollutants requires the presence of photocatalysts.

About Diphenyl oxide, If you have any questions, you can contact Saeed, A; Altarawneh, M; Siddique, K; Conesa, JA; Ortuno, N; Dlugogorski, BZ or concate me.. Product Details of 101-84-8

Reference:
Ether – Wikipedia,
,Ether | (C2H5)2O – PubChem

Quality Control of Benzyl ether. In 2020 J INTENSIVE CARE MED published article about ANESTHESIA CARE; SURVIVAL; OUTCOMES; EVENTS; SCORE; ICU in [Lau, Vincent Issac; Priestap, Fran; Lam, Joyce N. H.; Basmaji, John; Ball, Ian M.] Western Univ, Schulich Sch Med & Dent, Dept Med, Div Crit Care, London, ON, Canada; [Ball, Ian M.] Western Univ, Dept Epidemiol & Biostat, London, ON, Canada in 2020, Cited 28. The Name is Benzyl ether. Through research, I have a further understanding and discovery of 103-50-4.

Purpose: To describe factors (demographics and clinical characteristics) that predict patients who are at an increased risk of adverse events or unplanned return visits to a health-care facility following discharge direct to home (DDH) from intensive care units (ICUs). Methods: Prospective cohort study of all adult patients who survived their stay in our medical-surgical-trauma ICU between February 2016 and 2017 and were discharged directly home. Patients were followed for 8 weeks postdischarge. Univariable and multivariable logistic regression analyses were performed to identify factors associated with adverse events or unplanned return visits to a health-care facility following DDH from ICU. Results: A total of 129 DDH patients were enrolled and completed the 8-week follow-up. We identified 39 unplanned return visits (URVs). There was 0% mortality at 8 weeks postdischarge. Eight potential predictors of hospital URVs (P< .2) were identified in the univariable analysis: prior substance abuse (odds ratio [OR] of URV of 2.50 [95% confidence interval: 1.08-5.80], hepatitis (OR: 6.92 [1.68-28.48]), sepsis (OR: 11.03 [1.19-102.29]), admission nine equivalents of nursing manpower score (NEMS) <24 (OR: 2.28 [1.03-5.04], no fixed address (OR: 22.9 [1.2-437.3]), ICU length of stay (LOS) <2 days (OR: 2.95 [1.28-6.78]), home discharge within London, Ontario (OR: 2.44 [1.00-5.92]), and left against medical advice (AMA; OR: 6.06 [2.04-17.98]). Conclusions: Our study identified 8 covariates that were potential predictors of URV: prior substance abuse, hepatitis, sepsis, admission NEMS <24, no fixed address, ICU LOS <2 days, home discharge within London, Ontario, and left AMA. The practice of direct discharges home from the ICU would benefit from adequately powered multicenter study in order to construct a clinical prediction model (that would require further testing and validation). Quality Control of Benzyl ether. Bye, fridends, I hope you can learn more about C14H14O, If you have any questions, you can browse other blog as well. See you lster.

Reference:
Ether – Wikipedia,
,Ether | (C2H5)2O – PubChem

An article Catalytic hydrogenolysis of lignin beta-O-4 aryl ether compound and lignin to aromatics over Rh/Nb2O5 under low H-2 pressure WOS:000528032800006 published article about C-O BONDS; SELECTIVE HYDRODEOXYGENATION; MODEL; PLATINUM; CLEAVAGE; HYDROGENATION; PHENOLS; ALUMINA; NICKEL; PD in [Guan, Weixiang; Chen, Xiao; Hu, Haoquan; Zhang, Jie; Liang, Changhai] Dalian Univ Technol, Sch Chem Engn, State Key Lab Fine Chem, Lab Adv Mat & Catalyt Engn, Dalian 116024, Peoples R China; [Tsang, Chi-Wing] Technol & Higher Educ Inst Hong Kong, Fac Sci & Technol, 20A Tsing Yi Rd, Hong Kong, Peoples R China; [Lin, Carol Sze Ki] City Univ Hong Kong, Sch Energy & Environm, Kowloon Tong, Hong Kong, Peoples R China in 2020.0, Cited 41.0. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8. Product Details of 101-84-8

The increasing risk of fossil fuels depletion due to surging energy demand has accelerated the search of alternative renewable sources. Lignin, one of the major components of lignocellulosic biomass, is the only abundant renewable natural resource for aromatic compounds. In this work, the effects of metals and process parameters were discussed via the catalytic hydrogenolysis of beta-O-4 lignin model compound, 2-phenethyl phenyl ether. The best results were obtained over Rh/Nb2O5 with an overall conversion of 99.3% and exceptional selectivity of 98.9% to aromatic products when the hydrogenolysis was carried out at 260 degrees C and 0.1 MPa H-2 for 4 h. The high efficiency is mainly attributed to the cooperation between Rh and NbOx at the perimeter sites, in which Rh particles are responsible for the dissociation of H-2 and NbOx for activating CeO bonds. With respect to depolymerize of ash wood lignin, the liquid products were mostly aromatics over Rh/Nb2O5 under 0.1 MPa H-2. The results achieved in this work provide a promising prospect towards valorization of lignin into production of valuable aromatic compounds under low hydrogen pressure.

Product Details of 101-84-8. Welcome to talk about 101-84-8, If you have any questions, you can contact Guan, WX; Chen, X; Hu, HQ; Tsang, CW; Zhang, J; Lin, CSK; Liang, CH or send Email.

Reference:
Ether – Wikipedia,
,Ether | (C2H5)2O – PubChem

An article Nanoporous phenanthroline polymer locked Pd as highly efficient catalyst for Suzuki-Miyaura Coupling reaction at room temperature WOS:000509524100018 published article about COVALENT ORGANIC FRAMEWORKS; PALLADIUM NANOPARTICLES; C-C; RECYCLABLE NANOCATALYST; REUSABLE CATALYST; HETEROGENEOUS CATALYST; FE3O4 NANOPARTICLES; GREEN SYNTHESIS; AQUEOUS-MEDIA; REDUCTION in [Chen, Jian; Zhang, Yan; Xie, Mingjiang] Huanggang Normal Univ, Hubei Key Lab Proc & Applicat Catalyt Mat, Huanggang 438000, Peoples R China; [Zhang, Ju; Li, Tao] Huazhong Univ Sci & Technol, Sch Chem & Chem Engn, Hubei Key Lab Mat Chem & Serv Failure, 1037 Luoyu Rd, Wuhan 430074, Peoples R China in 2020.0, Cited 71.0. Product Details of 101-84-8. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8

Because of the intrinsic advantages, Suzuki coupling reactions have been one of the most popular coupling reactions in organic synthesis, however developing a high-performance heterogeneous catalyst for Suzuki coupling reactions in aqueous media at low temperature (e.g. room temperature) is still a challenge. Herein, a heterogeneous catalyst with coordinated Pd as active site and a designed conjugated phenanthroline based porous polymer (CPP) as support was fabricated. Systematically investigation on CPP support by Fourier transform infrared spectroscopy (FT-IR), Thermogravimetric analysis (TGA), Transmission electron microscopy (TEM), N-2 adsorption-desorption isotherm and Scanning electron microscopy (SEM) show that the derived CPP catalyst support owns a porous structure, moderately good surface area (141 m(2)/g) and an excellent thermal stability. As a heterogeneous catalyst for the synthesis of biphenyl derivatives via Suzuki coupling, Pd/CPP achieves an excellent catalytic performance and recycling ability towards Suzuki reaction of various reactants at room temperature in ethanol-water medium.

Product Details of 101-84-8. Bye, fridends, I hope you can learn more about C12H10O, If you have any questions, you can browse other blog as well. See you lster.

Reference:
Ether – Wikipedia,
,Ether | (C2H5)2O – PubChem