Ethers-buliding-blocks

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.

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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

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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.

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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.

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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.

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HPLC of Formula: C12H10O. Zhang, X; Wang, H; Li, DH; Chen, MX; Mao, YC; Du, BC; Zhuang, Y; Tan, WL; Huang, WC; Zhao, Y; Liu, D; Wang, T in [Zhang, Xue; Wang, Hui; Li, Donghui; Chen, Mengxue; Mao, Yuchao; Du, Baocai; Zhuang, Yuan; Liu, Dan; Wang, Tao] Wuhan Univ Technol, Sch Mat Sci & Engn, Wuhan 430070, Peoples R China; [Zhang, Xue; Wang, Hui; Li, Donghui; Chen, Mengxue; Mao, Yuchao; Du, Baocai; Zhuang, Yuan; Liu, Dan; Wang, Tao] Wuhan Univ Technol, State Key Lab Silicate Mat Architectures, Wuhan 430070, Peoples R China; [Tan, Wenliang; Huang, Wenchao] Monash Univ, Dept Mat Sci & Engn, Clayton, Vic 3800, Australia; [Zhao, Yan] Wuhan Univ Technol, Int Sch Mat Sci & Engn, Wuhan 430070, Peoples R China published Modulation of J-Aggregation of Nonfullerene Acceptors toward Near-Infrared Absorption and Enhanced Efficiency in 2020.0, Cited 53.0. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8.

The molecular aggregation of nonfullerene acceptors (NFA) can significantly affect the light absorption, charge generation, and power conversion efficiency (PCE) of organic solar cells (OSCs). In this work, we demonstrate the regulation of J-aggregation of COi8DFIC NFA toward near- infrared absorption via solvent additives 1,8-diiodooctane (DIO), diphenyl ether (DPE), and 1-chloronaphthalene (CN). Molecular dynamics simulations reveal preferential interaction of DIO with the alkyl side chains of COi8DFIC, endowing side-chains with the flexibility to adjust conformations to promote the formation of A-to-D type J-aggregation among the COi8DFIC backbone, resulting in a significant red-shift of absorbance toward the near-infrared region. The enhanced J-aggregation via pi-pi stacking, evidenced by grazing-incidence wide-angle X-ray scattering, constructs three-dimensional charge transport channels at the molecular level to facilitate charge transport. The presence of 0.5 vol % DIO molecules, which is most effective among all three additives, boosts the maximum achievable PCE of CF cast PTB7-Th:COi8DFIC OSCs from 8.5% to 12.9%. Our results provide a new concept to enhance the efficiency of OSCs via dedicated control of molecular aggregations of nonfullerene acceptors.

About Diphenyl oxide, If you have any questions, you can contact Zhang, X; Wang, H; Li, DH; Chen, MX; Mao, YC; Du, BC; Zhuang, Y; Tan, WL; Huang, WC; Zhao, Y; Liu, D; Wang, T or concate me.. HPLC of Formula: C12H10O

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An article Glycerol Cu(II) Complex Supported on Fe3O4 Magnetic Nanoparticles: A New and Highly Efficient Reusable Catalyst for the Formation of Aryl-Sulfur and Aryl-Oxygen Bonds WOS:000490235700002 published article about CROSS-COUPLING REACTION; LIGAND-FREE; C-S; ONE-POT; ODORLESS SYNTHESIS; HETEROGENEOUS NANOCATALYST; TRIPHENYLTIN CHLORIDE; DIARYL SULFIDES; O-ARYLATION; HALIDES in [Ashraf, Muhammad Ageel; Peng, Wan-Xi] Henan Agr Univ, Sch Forestry, Zhengzhou 450002, Henan, Peoples R China; [Ashraf, Muhammad Ageel] Univ Malaya, Fac Sci, Dept Geol, Kuala Lumpur 50603, Malaysia; [Liu, Zhenling] Henan Univ Technol, Sch Management, Zhengzhou 450001, Henan, Peoples R China; [Zhou, Liang] Guizhou Inst Technol, Sch Chem Engn, Guiyang 550003, Guizhou, Peoples R China in 2020.0, Cited 65.0. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8. Quality Control of Diphenyl oxide

In the present study, copper complex supported on surface-modified Fe3O4/SiO2 nanoparticles (Fe3O4@SiO2-Glycerole-Cu(II)) was successfully fabricated and characterized by fourier transform infrared spectroscopy (FT-IR), thermal gravimetric analysis (TGA), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray mapping, energy-dispersive X-ray spectroscopy (EDS), inductively coupled plasma optical emission spectroscopy (ICP-OES), N-2 adsorption and desorption (BET) and Vibrating Sample Magnetometer (VSM) techniques. This magnetic nanocatalyst utilized as an effective catalyst for the C-S and C-O cross-coupling reactions of aryl halides with thiourea and phenol. The catalyst could be quickly and completely recovered using an external magnetic field and reused for six reaction cycles without significant change in catalytic activity. [GRAPHICS] .

Welcome to talk about 101-84-8, If you have any questions, you can contact Ashraf, MA; Liu, ZL; Peng, WX; Zhou, L or send Email.. Quality Control of Diphenyl oxide

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Product Details of 103-50-4. Hahn, C; Becker, K; Saghafi, S; Pende, M; Avdibasic, A; Foroughipour, M; Heinz, DE; Wotjak, CT; Dodt, HU in [Hahn, Christian; Becker, Klaus; Saghafi, Saiedeh; Pende, Marko; Foroughipour, Massih; Dodt, Hans-Ulrich] Vienna Univ Technol, FKE, Dept Bioelect, Gusshausstr 25, A-1040 Vienna, Austria; [Hahn, Christian; Becker, Klaus; Saghafi, Saiedeh; Pende, Marko; Avdibasic, Alma; Foroughipour, Massih; Dodt, Hans-Ulrich] Med Univ Vienna, Ctr Brain Res, Vienna, Austria; [Hahn, Christian] Univ Med Ctr Gottingen, Inst Neuropathol, Robert Koch Str 40, D-37075 Gottingen, Germany; [Heinz, Daniel E.; Wotjak, Carsten T.] Max Planck Inst Psychiat, Dept Neuronal Plast, Munich, Germany published High-resolution imaging of fluorescent whole mouse brains using stabilised organic media (sDISCO) in 2019, Cited 39. The Name is Benzyl ether. Through research, I have a further understanding and discovery of 103-50-4.

Optical tissue clearing using dibenzyl ether (DBE) or BABB (1 part benzyl alcohol and 2 parts benzyl benzoate) is easy in application and allows deep-tissue imaging of a wide range of specimens. However, in both substances, optical clearing and storage times of enhanced green fluorescent protein (EGFP)-expressing specimens are limited due to the continuous formation of peroxides and aldehydes, which severely quench fluorescence. Stabilisation of purified DBE or BABB by addition of the antioxidant propyl gallate efficiently preserves fluorescence signals in EGFP-expressing samples for more than a year. This enables longer clearing times and improved tissue transparency with higher fluorescence signal intensity. The here introduced clearing protocol termed stabilised DISCO allows to image spines in a whole mouse brain and to detect faint changes in the activity-dependent expression pattern of tdTomato.

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Ouidir, M; Mendola, P; Louis, GMB; Kannan, K; Zhang, CL; Tekola-Ayele, F in [Ouidir, Marion; Mendola, Pauline; Zhang, Cuilin; Tekola-Ayele, Fasil] Eunice Kennedy Shriver Natl Inst Child Hlth & Hum, Epidemiol Branch, Div Intramural Populat Hlth Res, NIH, 6710B Rockledge Dr, Bethesda, MD 20892 USA; [Louis, Germaine M. Buck] George Mason Univ, Coll Hlth & Human Serv, Off Dean, Fairfax, VA 22030 USA; [Kannan, Kurunthachalam] New York State Dept Hlth, Wadsworth Ctr, Albany, NY USA; [Kannan, Kurunthachalam] NYU, Dept Pediat, Sch Med, New York, NY 10016 USA published Concentrations of persistent organic pollutants in maternal plasma and epigenome-wide placental DNA methylation in 2020.0, Cited 65.0. Recommanded Product: 101-84-8. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8.

Background Prenatal maternal plasma persistent organic pollutant (POP) concentrations have been associated with neonatal outcomes. However, the underlying mechanisms remain unknown. Placental epigenetic mechanisms may be involved, but no prior epigenome-wide studies have investigated the impact of maternal POPs on placental DNA methylation. We studied the association between maternal plasma POP concentration in early pregnancy and epigenome-wide placental DNA methylation among 260 pregnant women from the NICHD Fetal Growth Studies. Results Our analysis focused on POPs with more than 80% plasma concentrations above the limit of quantification, including 3 organochlorine pesticides (hexachlorobenzene, trans-nonachlor,p,p’-dichlorodiphenyldichloroethylene), 1 polybrominated diphenyl ether (PBDE 47), 3 polychlorinated biphenyls (138/158, 153, 180), and 6 poly- and perfluorinated alkyl substances (PFASs) (perfluorodecanoic acid, perfluorohexanesulfonic acid, perfluorononanoic acid, perfluorooctanesulfonic acid, perfluoroundecanoic acid (PFUnDA)). Using 5% false discovery rate, POPs were associated with a total of 214 differentially methylated CpG sites (nominalpvalues ranging from 2.61 x 10(-21)to 2.11 x 10(-7)). Out of the 214 CpG sites, 24 (11%) were significantly correlated with placental expression of 21 genes. Notably, higher PFUnDA was associated with increased methylation at 3 CpG sites (cg13996963, cg12089439, cg18145877) annotated toTUSC3, and increased methylation at those 3 CpG sites was correlated with decreased expression ofTUSC3in the placenta. Increased methylation at cg18145877 (TUSC3) and decreased expression ofTUSC3were correlated with shorter birth length. Out of the 214 CpG sites, methylation at 44 CpG sites was correlated (pvalue < 0.10) with at least one neonatal anthropometry measure (i.e., birth weight, birth length, and head circumference). Seven CpG sites mediated (pvalue < 0.05) the association between PBDE 47 and neonatal anthropometry measures. Genes annotating the top differentially methylated CpG sites were enriched in pathways related to differentiation of embryonic cells (PBDE 47) and in pathways related to brain size and brain morphology (PFASs). Conclusions DNA methylation changes in the placenta were significantly associated with maternal plasma POPs concentration. The findings suggest that placental DNA methylation and gene expression mechanism may be involved in the prenatal toxicity of POPs and their association with neonatal anthropometry measures. 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.. Recommanded Product: 101-84-8

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Recommanded Product: 101-84-8. Authors Pang, BL; Zhang, ML; Zhou, C; Dong, HZ; Ma, S; Feng, JG; Chen, YJ; Yu, LY; Dong, LF in ELSEVIER SCIENCE SA published article about in [Pang, Beili; Zhang, Meili; Zhou, Cheng; Dong, Hongzhou; Feng, Jianguang; Chen, Yingjie; Yu, Liyan; Dong, Lifeng] Qingdao Univ Sci & Technol, Coll Mat Sci & Engn, Qingdao 266042, Peoples R China; [Ma, Shuai] Qingdao Univ Sci & Technol, Sch Math & Phys, Qingdao 266061, Peoples R China; [Dong, Lifeng] Hamline Univ, Dept Phys, St Paul, MN 55104 USA in 2021.0, Cited 57.0. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8

The development of low cost electrocatalysts with excellent I-/I-3(-) redox reaction efficiency is critically important for practical applications of dye-sensitized solar cells (DSSCs). Nevertheless, it is difficult to simultaneously improve the activity and stability of catalysts. Herein, heterogeneous FeNi3/NiFe2O4 nanoparticles are successfully embedded in modified graphene (mGr) matrix with network structure. As-prepared FeNi3/NiFe2O4@mGr shows excellent electrocatalytic activities and high stability. The DSSCs with FeNi3/NiFe2O4@mGr as counter electrodes demonstrate a high power conversion efficiency of 12.14%, which is superior to that of platinum (Pt, 8.31%). Also, the FeNi3/NiFe2O4@mGr device remains 90% efficiency up to 42 days under ambient conditions without encapsulation. Therefore, the FeNi3/NiFe2O4@mGr composite can be further developed as an environmentally friendly, inexpensive, and efficient counter electrode material for DSSCs.

Welcome to talk about 101-84-8, If you have any questions, you can contact Pang, BL; Zhang, ML; Zhou, C; Dong, HZ; Ma, S; Feng, JG; Chen, YJ; Yu, LY; Dong, LF or send Email.. Recommanded Product: 101-84-8

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Ether – Wikipedia,
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