Tag: M.W=50-100

Jovic, Branislav published the artcileAmides as a model system of low molar mass algal organic matter. Influence on the adsorption of p-nitrophenol on activated carbon, HPLC of Formula: 123-39-7, the main research area is amide water activated carbon nitrophenol adsorption equilibrium diffusivity parameter.

In this study, the adsorption equilibrium and diffusivity parameters of p-nitrophenol were estimated for water containing different concentrations of secondary amides. Com. powd. activated carbon was used as an adsorbent. The external mass transfer coefficient (kf), the surface diffusion coefficient (Ds) and the standard free Gibbs energy were calculated for p-nitrophenol in the presence of different secondary amide concentrations The anal. established that there are correlations between structural parameters of amides, on the one hand, and diffusion and thermodn. parameters for p-nitrophenol adsorption process, on the other. It was noticed that voluminous hydrophobic amides decreased the adsorption capacity of p-nitrophenol on activated carbon. On the basis of the results obtained for external mass transfer coefficients, it is assumed that amides cause the reduction of adsorption capacity of p-nitrophenol onto activated carbon by concentrating at the solid/liquid interface.

Arabian Journal of Chemistry published new progress about Adsorption. 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, HPLC of Formula: 123-39-7.

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Zhou, Yue published the artcileEnhancing CO2 Electrocatalysis on 2D Porphyrin-Based Metal-Organic Framework Nanosheets Coupled with Visible-Light, Formula: C2H5NO, the main research area is carbon dioxide electrocatalysis porphyrin MOF nanosheet visible light; 2D nanosheets; carbon dioxide reduction; photocoupled electrocatalysis; porphyrin; visualized channels.

2D Catalysts combined with single atom sites are promising candidates to promote CO2 reduction performance, but the ability to target stable materials with distinct structure still remains challenging. Herein, a series of single metal atoms anchored 2D metal-organic framework nanosheets (MOF-NS-M) with visualized and well-ordered mesoporous structures are fabricated and exhibit enhanced CO2 reduction activity and selectivity with the assistance of visible-light. Encouragingly, the CO Faradaic efficiency of MOF-NS-Co exceeds 90% in a wide potential window of -0.5 to -1.0 V vs. RHE and reaches 98.7% with 100 mV pos. shift compared with the result measured under dark. The catalytic kinetics studies show a fast initial electron transfer to CO2 to form *COO-, thanks to the sufficient exposed active sites resulting from the nanosheet nature and adjusted electron transfer pathway caused by the porphyrin photoswitch.

Small Methods published new progress about Adsorption. 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, Formula: C2H5NO.

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Chu, Qianqian published the artcileStable Indium Pyridylcarboxylate Framework with Highly Selective Adsorption of Cationic Dyes and Effective Nitenpyram Detection, Application of N-Methylformamide, the main research area is carboxypyridinylterephthalate indium metal organic framework preparation crystal mol structure; pyridylcarboxylate indium framework preparation adsorption cationic dye nitenpyram; luminescence carboxypyridinylterephthalate indium framework.

On the basis of an undeveloped asym. pyridylcarboxylate ligand, 2-(2-carboxypyridin-4-yl)terephthalic acid (H3CPTA), an indium pyridylcarboxylate framework, [(Me)2NH2]1.5[In1.5(CPTA)2]·5.5NMF·6H2O (1), is synthesized under solvent thermal conditions. 1 Displays a 3D anionic framework with a large void space, which contains open square channels with a cross section of 14.6 Å and a pore surface decorated with carboxylic oxygen atoms. Depending on the anionic skeleton and high water stability, 1 exhibits high adsorption selectivity and capacity for cationic dyes in aqueous solution Furthermore, the luminescence performance illustrates that 1 has selectivity and sensitivity to nitenpyram with good recyclability.

Inorganic Chemistry published new progress about Adsorption. 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, Application of N-Methylformamide.

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Polunin, K. E. published the artcileDetection and Neutralization of Unsymmetrical Dimethylhydrazine on the Surface of Construction Materials, Formula: C2H5NO, the main research area is neutralization dimethylhydrazine construction material ozonation.

The construction materials that contacted with unsym. dimethylhydrazine and the desorption solutions obtained when treating the contaminated surface of metals and alloys with water and reagents were studied by chromatog. and mass spectrometry. Neutralization of unsym. dimethylhydrazine was studied using ozone and shungite. Ozonation makes it possible to destroy the toxicant mols. chem. and phys. adsorbed on the surface of metal constructions, due to which they can be reused and utilized. Shungite effectively adsorbs and catalytically decomposes not only unsym. dimethylhydrazine and its transformation products, but also oligomer compounds formed during the storage of hydrazine fuel. Ozonation of spent shungite can increase the efficiency of destructive processes and completeness of its regeneration.

Russian Journal of Physical Chemistry A published new progress about Adsorption. 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, Formula: C2H5NO.

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Karmakar, Anirban published the artcilePolyaromatic Carboxylate Ligands Based Zn(II) Coordination Polymers for Ultrasound-Assisted One-Pot Tandem Deacetalization-Knoevenagel Reactions, Formula: C2H5NO, the main research area is polyaromatic carboxylate ligand zinc coordination polymer Knoevenagel reaction.

Solvothermal reactions between the polyaromatic group containing carboxylic acid pro-ligands 5-{(pyren-1-ylmethyl)amino}isophthalic acid (H2L1) and 5-{(anthracen-9-ylmethyl)amino}isophthalic acid (H2L2) with Zn(NO3)2·6H2O led to the formation of the new 1D coordination polymer [Zn(L1)(NMF)]n (1) and four other coordination polymers, [Zn(L1)(DMF)]n (2), [Zn(L1)(4,4-Bipy)]n (3), [Zn(L2)(DMF)(H2O)2]n·n(H2O) (4) and [Zn2 (L2)2(DMF)(CH3OH)]n (5), which were previously reported by our group. Single crystal X-ray diffraction analyses revealed that the CP 1 has a one-dimensional (1D) double-chain-type structure similar to that of CP 2. For CP 3, the assembly of the Zn(II) ion with a deprotonated L12- ligand and 4,4′-bipyridine produces a 3D network. CP 4 and 5 exhibit 1D linear and 2D layered-type structures. The ultrasound-assisted tandem reactions promoted by CPs have not yet been well studied. Thus, in the present work, we have investigated the catalytic activities of the newly synthesized CP 1, as well as of the other CPs 2-5, towards the tandem deacetalization-Knoevenagel condensation reactions of various acetals under ultrasonic irradiation They proved to be highly efficient, with special emphasis on catalyst 1, which completely converted the substrate (benzaldehyde di-Me acetal) into the desired product (2-benzylidenemalononitrile) after 2 h. The stability of the catalysts, namely regarding the action of ultrasonic radiation, was demonstrated by their reuse, where only a slight loss of activity was observed after four cycles. Heterogeneity was also demonstrated, and no leaching was detected over the various cycles.

Catalysts published new progress about Adsorption. 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, Formula: C2H5NO.

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Zhang, Biao published the artcileCost-effective preparation of microporous polymers from formamide derivatives and adsorption of CO2 under dry and humid conditions, Recommanded Product: N-Methylformamide, the main research area is microporous polymer carbon dioxide adsorption polymerization surface area porosity.

Nitrogen-rich microporous polymers that contain different contents of primary, secondary and tertiary amine groups in their networks are prepared via the amine-formamido condensation reaction utilizing formamide, formohydrazide, N-methylformamide and N,N-dimethylformamide as starting monomers to polymerize with melamine, resp., via a facile one-step polymerization reaction in the absence of any catalyst. The resultant four polymers exhibit BET surface areas of 612-748 m2 g-1 and adjustable pores sizes in the range from 0.52 to 1.10 nm. The systematically changed types of amine groups and porosity parameters result in interesting variations of interfacial interactions between the porous surface and CO2 mol., so as to significantly influence the adsorption behavior of CO2 gas. The uptake of CO2 in polymers is up to 14.6 wt% (273 K/1.0 bar) with an outstandingly high CO2/N2 adsorption selectivity of 151. Moreover, after adding a small amount of water vapor in the mixed CO2/N2 gas, the adsorption selectivity CO2/N2 further increases to 173. The adsorption of CO2 and its selectivity over N2 in this series of microporous polymers under both dry and humid conditions are studied and discussed in terms of the type of the amine group on the polymer skeletons, the adsorption mechanism and the porosity parameters.

Polymer Chemistry published new progress about Adsorption. 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, Recommanded Product: N-Methylformamide.

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Galle, Tom published the artcileSimultaneous Ligand and Cation Exchange of Colloidal CdSe Nanoplatelets toward PbSe Nanoplatelets for Application in Photodetectors, Application In Synthesis of 123-39-7, the main research area is simultaneous ligand cation exchange colloidal cadmium selenium nanoplatelets toward.

Cation exchange emerged as a versatile tool to obtain a variety of nanocrystals not yet available via a direct synthesis. Reduced reaction times and moderate temperatures make the method compatible with anisotropic nanoplatelets (NPLs). However, the subtle thermodn. and kinetic factors governing the exchange require careful control over the reaction parameters to prevent unwanted restructuring. Here, we capitalize on the research success of CdSe NPLs by transforming them into PbSe NPLs suitable for optoelectronic applications. In a two-phase mixture of hexane/N-methylformamide, the oleate-capped CdSe NPLs simultaneously undergo a ligand exchange to NH4I and a cation exchange reaction to PbSe. Their morphol. and crystal structure are well-preserved as evidenced by electron microscopy and powder X-ray diffraction. We demonstrate the successful ligand exchange and associated electronic coupling of individual NPLs by fabricating a simple photodetector via spray-coating on a com. substrate. Its optoelectronic characterization reveals a fast light response at low operational voltages.

Journal of Physical Chemistry Letters published new progress about Anisotropy. 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, Application In Synthesis of 123-39-7.

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Barhoumi Meddeb, Amira published the artcileMagnetic field effects on cellulose nanocrystal ordering in a non-aqueous solvent, Application In Synthesis of 123-39-7, the main research area is cellulose nanocrystal non aqueous solvent magnetic field manipulation.

Cellulose nanocrystals (CNCs) are rod-shaped particles that can self-assemble into a chiral nematic phase at certain contents. Due to their neg. diamagnetic susceptibility and high aspect ratio, the structure of the chiral nematic phase of CNC suspensions can be manipulated using a magnetic field, which is a promising path to extending local order to a larger scale. The ability to manipulate CNCs in non-aqueous solvents is critically needed to incorporate them in a wide range of polymers. So far, magnetic field-induced manipulation of CNCs in suspension was reported for aqueous suspensions only, whereas a much-needed similar study for non-aqueous solvents has not been reported to the best of our knowledge. In this paper, we investigate the CNC ordering in n-methylformamide (NMF) under a 0.7 T magnetic field and compare it to the order achieved in H2O. The formation of a well-defined chiral nematic phase and its viscosity have a significant influence on the rate and extent of the field-induced orientation of CNCs. A clearly formed chiral nematic phase has a high potential for increased levels of field-induced ordering. And the chiral nematic phase with the lowest viscosity showed the largest increase in ordering when the magnetic field is applied before reaching equilibrium and plateauing. In contrast, the higher viscosity suspensions exhibited limited temporal changes after the initial field effect. These findings will facilitate the fabrication of globally ordered CNCs in a variety of polymers under a magnetic field, which is a necessary step to expanding the engineering applications of large-scale cellulose-based composites with anisotropic properties.

Cellulose (Dordrecht, Netherlands) published new progress about Anisotropy. 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, Application In Synthesis of 123-39-7.

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Hu, Yang-mei-qing published the artcileThe preparation of polyclonal antibody against chlordimeform and establishment of detection by indirect competitive ELISA, Product Details of C2H5NO, the main research area is polyclonal antibody chlordimeform indirect competitive ELISA; Chlordimeform; IC-ELISA; artificial antigen; polyclonal antibody.

Chlordimeform is a chem. pesticide that is highly carcinogenic and toxic. The purpose of this study was to establish an ELISA (ELISA) method for the detection of chlordimeform in aquaculture and fish farming. Chlordimeform was coupled with bovine serum albumin (BSA) and ovalbumin (OVA) as carrier proteins. A chlordimeform-BSA conjugate was used as an immunogen, and chlordimeform-OVA was used as a coating antigen. Chlordimeform-BSA was used to immunize rabbits, and a polyclonal antibody was prepared An indirect competitive ELISA (IC-ELISA) was established to detect chlordimeform. The working range of the established IC-ELISA method for chlordimeform detection was 1-20 ng/mL. The IC50 was 3.126 ng/mL, and the lower limit of detection (LOD) of chlordimeform was 0.637 ng/mL. The recovery of chlordimeform from spiked water samples ranged from 81% to 107%. An anti-chlordimeform polyclonal antibody was successfully developed, and a novel IC-ELISA was established to detect chlordimeform in aquaculture.

Journal of Environmental Science and Health, Part B: Pesticides, Food Contaminants, and Agricultural Wastes published new progress about Antiserums. 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, Product Details of C2H5NO.

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Li, Rui published the artcileSeparation of azeotropic mixture (2, 2, 3, 3-Tetrafluoro-1-propanol + water) by extractive distillation: Entrainers selection and vapour-liquid equilibrium measurements, Computed Properties of 123-39-7, the main research area is tetrafluoropranol water azeotropic mixture extractive distillation vapor liquid equilibrium.

For separating the azeotrope of 2, 2, 3, 3-tetrafluoro-1-propanol (TFP) and water by extractive distillation, N-Me pyrrolidone (NMP), N-Me formamide (NMF) and N, N-dimethyl formamide (DMF) were selected as entrainers using the COSMO-SAC model based on solvent capacity. And the charge d. surface of entrainers and each component in the azeotrope system were calculated The vapor-liquid equilibrium (VLE) data for the mixtures (TFP + NMP), (TFP + NMF) and (TFP + DMF) were measured by a modified Rose-type recirculating still at the pressure 101.3 kPa. The thermodn. consistency for the VLE data was validated using the Herington and van Ness methods. The VLE data were correlated with NRTL, Wilson and UNIQUAC models, and the interaction parameters of thermodn. models were fitted. Meanwhile, the effect of the entrainers on the VLE for TFP and water was explored. Compared with NMF and DMF, NMP was adopted as the suitable entrainer for separation of the azeotropic mixture TFP and water by extractive distillation

Journal of Chemical Thermodynamics published new progress about Azeotropes. 123-39-7 belongs to class amides-buliding-blocks, name is N-Methylformamide, and the molecular formula is C2H5NO, Computed Properties of 123-39-7.

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics