Category: 13822-56-5

Huang, Hongfeng published the artcileSubstrate Modification for High-Performance Thermoelectric Materials and Generators Based on Polymer and Carbon Nanotube Composite, Application In Synthesis of 13822-56-5, the publication is Advanced Materials Interfaces (2022), 9(23), 2201193, database is CAplus.

Polymer and carbon nanotube composites have aroused extensive attention for thermoelec. materials owing to the combination of low thermal conductivity of polymer and high elec. conductivity of carbon nanotubes. Surface properties of the substrate are of great importance for the charge transport behaviors of semiconducting thin films, which are less explored in thermoelec. applications. Herein, self-assembled monolayers (SAMs) are used to modify the substrate for thermoelec. polymer composites. The trifluoromethyl (CF₃)-terminated SAM is beneficial for an improved elec. conductivity; while the SAM with amino group is found to improve their Seebeck coefficient and decrease the elec. conductivity,. As a result, polymer composites on CF₃-SAM-modified substrate show a high room-temperature power factor of 285¦ÌW m^-1 K^-2 and a large output power of 2.36¦ÌW for thermoelec. generator at a temperature gradient of 50 K. This work demonstrates that surface modification by SAMs is a promising strategy for improving performance of thermoelec. materials and devices.

Advanced Materials Interfaces published new progress about 13822-56-5. 13822-56-5 belongs to catalysis-chemistry, auxiliary class Organic Silicones, name is 3-(Trimethoxysilyl)propan-1-amine, and the molecular formula is C6H17NO3Si, Application In Synthesis of 13822-56-5.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Zhang, Xinxi published the artcileRapid and non-invasive surface-enhanced Raman spectroscopy (SERS) detection of chlorpyrifos in fruits using disposable paper-based substrates charged with gold nanoparticle/halloysite nanotube composites, Application In Synthesis of 13822-56-5, the publication is Microchimica Acta (2022), 189(5), 197, database is CAplus and MEDLINE.

Chlorpyrifos is one of the most widely used organophosphate insecticides in agricultural production Nevertheless, the residues of chlorpyrifos in agricultural byproduct seriously threaten human health. Thus, the ultrasensitive detection of chlorpyrifos residues in agri-food products is of great demand. Herein, an AuNP/HNT-assembled disposable paper SERS substrate was prepared by an electrostatic self-assembly method to detect chlorpyrifos residues. The AuNP/HNT paper substrate exhibited high SERS activity, good reproducibility, and long-term stability, which was successfully used for quant. detection of chlorpyrifos; the detection limit reached 7.9 x 10-9 M. For spiked apple samples the calculated recovery was 87.9% with a RSD value of 6.1%. The excellent detection ability of AuNP/HNT paper-based SERS substrate indicated that it will play an important role in pesticide detection in the future. Graphical abstract: AuNP/HNT assembled disposable paper SERS substrate was prepared by an electrostatic self-assembly method to detect chlorpyrifos residues in fruits. [graphic not available: see fulltext].

Microchimica Acta published new progress about 13822-56-5. 13822-56-5 belongs to catalysis-chemistry, auxiliary class Organic Silicones, name is 3-(Trimethoxysilyl)propan-1-amine, and the molecular formula is C7H8BNO4, Application In Synthesis of 13822-56-5.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Maurya, Mannar R. published the artcileAmine-functionalized titanium dioxide supported dioxidomolybdenum(VI) complexes as functional model for phenoxazinone synthase enzyme, HPLC of Formula: 13822-56-5, the publication is Catalysis Today (2022), 274-287, database is CAplus.

Two dioxidomolybdenum(VI) complexes, [Mo^VIO₂{H₂dfba(bhz)₂}(H₂O)] (1) and [Mo^VIO₂{H₂dfba(fah)₂}(H₂O)] (2) of ligands H₄dfba(bhz)₂ (I) and H₄dfba(fah)₂ (II) (H₂dfba = 3,5-diformyl-4-hydroxybenzoic acid, Hbhz = benzoylhydrazide and Hfah = 2-furanoylhydrazide), resp. and their corresponding heterogenized complexes [Mo^VIO₂{Hdfba(bhz)₂}(H₂O)]@APTMS-TiO₂ (3) and [Mo^VIO₂{Hdfba(fah)₂}(H₂O)]@APTMS-TiO₂ (4) supported on amine-functionalized titanium dioxide (APTMS-TiO₂, III) have been isolated and characterized by various spectroscopic techniques (FT-IR, UV-vis, diffusion reflectance, ¹H and ¹³C NMR), elemental anal. (C, H and N), thermal, TEM and powder-XRD studies. Single-crystal x-ray study of [Mo^VIO₂{H₂dfba(bhz)₂}(EtOH)]¡¤EtOH (1a¡¤EtOH) confirms the octahedral structure. Both homogeneous and heterogeneous complexes have been explored as phenoxazinone synthase mimicking catalysts in the oxidation of 2-aminophenol to 2-aminophenoxazine-3-one in acetonitrile in the presence of aqueous H₂O₂. The k_cat value for the phenoxazinone synthase-like activity was 1.46 x 10^-3 and 3.26 x 1 0^-3 min^-1 for catalysts 1 and 2, resp. Catalysts 1, 2, 3 and 4 also gave 91, 86, 94 and 88% yield of 2-aminophenoxazine-3-one (APX), resp., under the optimized reaction conditions.

Catalysis Today published new progress about 13822-56-5. 13822-56-5 belongs to catalysis-chemistry, auxiliary class Organic Silicones, name is 3-(Trimethoxysilyl)propan-1-amine, and the molecular formula is C6H17NO3Si, HPLC of Formula: 13822-56-5.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Cui, Jinlei published the artcileIn Situ ²⁹Si solid-state NMR study of grafting of organoalkoxysilanes to mesoporous silica nanoparticles, COA of Formula: C6H17NO3Si, the publication is Microporous and Mesoporous Materials (2022), 112019, database is CAplus.

Since the catalytic activity and the stability of silica-bound organometallic complexes are affected by their interactions with hydroxyl groups on the surface, isolated hydroxyls are often created prior to the introduction of catalytic species. Here, we investigate a method to remove the indigenous hydroxyls and create new isolated hydroxyls by grafting organo-trimethoxysilane (R-TMS) to generate a silicon T² site, (=SiO-)₂SiR(-OH). We used in situ ²⁹Si solid-state NMR experiments to monitor the evolution of Tn sites, (=SiO-)₂SiR(-OH)₃-n (n = 1, 2, 3). The study indicates that i) the grafting proceeds in a consecutive manner as T¹ ¡ú T² ¡ú T³, and ii) the kinetics depend on the type of functional groups in the silane. However, the rates of T¹ formation and T² ¡ú T³ conversion are also controlled to a significant extent by the entropy loss associated to the initial silane binding and the spatial arrangement of surface hydroxyls, resp. The grafting of R-TMS with a basic functional group leads to a lower concentration of T¹ sites. The nucleophilicity of the functional group facilitates the grafting process by lowering the enthalpy barrier, while the T¹ formation rate is more influenced by the entropy barrier than the T¹ ¡ú T² conversion rate. Thus, the basic functional group promotes the T¹ ¡ú T² conversion more than the T¹ formation, resulting in a lower concentration of T¹ sites.

Microporous and Mesoporous Materials published new progress about 13822-56-5. 13822-56-5 belongs to catalysis-chemistry, auxiliary class Organic Silicones, name is 3-(Trimethoxysilyl)propan-1-amine, and the molecular formula is C6H17NO3Si, COA of Formula: C6H17NO3Si.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Kesharwani, Neha published the artcileSynthesis and characterization of Merrifield resin and graphene oxide supported air stable oxidovanadium(IV) radical complexes for the catalytic oxidation of light aliphatic alcohols, Product Details of C6H17NO3Si, the publication is Catalysis Today (2022), 604-617, database is CAplus.

Imidazole modified Merrifield resin and (3-Aminopropyl)trimethoxysilane-modified graphene oxide supported oxidovanadium(IV) radical complexes PS-i.m.-[V^IVO(tbnC^¡¤)(acac)] (1) and GO-ATPMS-[V^IVO(tbnO^¡¤)(acac)] (2) were synthesized and characterized by various spectroscopic, thermal and chem. techniques. The radical nature of 1 and 2 was established by trapping experiments in addition to EPR spectroscopy. In EPR anal., complex 2 shows a prominent signal with g = 2.005, characteristic of an oxygen-centered radical. The neat complex [V^IVO(tbnC^¡¤)(acac)] (A) displays an EPR signal at g = 2.0025, typical of carbon-centered radical. On the contrary, such characteristic EPR signal of a radical is absent in complex 1, presumably due to spin pairing. XPS anal. confirms the +4 oxidation state of vanadium in fresh as well as recycled catalysts 1 and 2. Both the supported complexes show excellent catalytic activity towards a variety of aliphatic alcs. Comparatively, the polymer-supported complex displays better substrate conversion than the graphene oxide-supported complex. However, 2 shows better selectivity towards aldehydes, whereas carboxylic acids are obtained as major products in the presence of 1. Interestingly, catalyst 1 is almost equally effective towards all the examined alcs., but its effectiveness reduces slightly for longer carbon chain alcs. On the other hand, catalyst 2 shows better substrate conversion for the alcs. with a longer carbon chain. During the catalytic oxidation of alcs., the active intermediate species oxidoperoxidovanadium(V) complex ([VO(O₂)(tbn)(acac-H)]^–) was detected by FT-IR, UV-vis, and LC-MS anal.

Catalysis Today published new progress about 13822-56-5. 13822-56-5 belongs to catalysis-chemistry, auxiliary class Organic Silicones, name is 3-(Trimethoxysilyl)propan-1-amine, and the molecular formula is C6H17NO3Si, Product Details of C6H17NO3Si.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Chen, Guan-Ping published the artcileSynergistic effect of amino-functionalized SBA-15 in Cu-catalyzed oxidative homocoupling of phenylacetylene, Computed Properties of 13822-56-5, the publication is Applied Catalysis, A: General (2022), 118570, database is CAplus.

SBA-15 mesoporous silica materials with short mesochannels functionalized with various amino-groups, including NH₂-, MeNH-, diamine-, triamine- and guanidine-groups were prepared through one-pot co-condensation of tetraethylorthosilicate (TEOS) and amino-containing trimethoxysilanes in the presence of P123 as pore-directing agent and an appropriate amount of Zr(IV) ions. The resultant materials immobilized with CuCl were examined as reusable catalysts in the oxidative homocoupling of phenylacetylene at room temperature with air as the oxidant. Efforts were made to avoid the liquid base additives. The Cu-guanidine-SBA-15 catalyst with Cu/guanidine molar ratio of 0.6 was found to satisfy this objective and gave the highest yield (up to ca. 97%) and nearly 100% selectivity of 1,4-diphenyl-1,3-butadiyne in 24 h. Moreover, the catalyst could retain around 90% yield after reuses for three times.

Applied Catalysis, A: General published new progress about 13822-56-5. 13822-56-5 belongs to catalysis-chemistry, auxiliary class Organic Silicones, name is 3-(Trimethoxysilyl)propan-1-amine, and the molecular formula is C6H17NO3Si, Computed Properties of 13822-56-5.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Kar, M. R. published the artcileImpact of Zn-doping on the composition, stability, luminescence properties of silica coated all-inorganic cesium lead bromide nanocrystals and their biocompatibility, SDS of cas: 13822-56-5, the publication is Materials Today Chemistry (2022), 100753, database is CAplus.

Cesium lead halide (CsPbX₃: X = I, Br, Cl) nanocrystals (NCs) are believed to be potential candidates for bioimaging applications. However, their low structural stability against polar solvents remains as a major limitation. To improve the NCs stability and maintain high emission intensity, we synthesized silica coated Zn-doped core@shell perovskite NCs via modified ligand assisted reprecipitation (LARP) synthetic method under relatively high humid condition. We systemically varied the composition inside the perovskite structure and then studied their photophys. properties and stability. Interestingly, the Zn-doping amount controls the ratio of CsPbBr₃ to Cs₄PbBr₆ perovskites inside the core and also facilitates the growth of (OA)₂PbBr₄ shell, enables overall increase in NCs emission intensity and stability. We observed green color emission from these NCs in the spectral range of 494-506 nm with a maximum photoluminescence quantum yield (PLQY) up to 88%. The optimized Zn-doped NCs exhibited nearly four times better water stability compared to the bare NCs and retain emission properties for several months even in highly polar solvents. Finally, we performed biocompatibility test of the NCs generated on biol. samples and hydroponics test in a gardenia leaf for their potential bioimaging applications.

Materials Today Chemistry published new progress about 13822-56-5. 13822-56-5 belongs to catalysis-chemistry, auxiliary class Organic Silicones, name is 3-(Trimethoxysilyl)propan-1-amine, and the molecular formula is C6H17NO3Si, SDS of cas: 13822-56-5.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Jiang, Bo published the artcileGreen fabrication of hierarchically-structured Pt/bio-CeO₂ nanocatalysts using natural pollen templates for low-temperature CO oxidation, Related Products of catalysis-chemistry, the publication is Molecular Catalysis (2022), 112251, database is CAplus.

Herein, natural rape pollen was utilized as biotemplates to synthesize hierarchically structured bio-CeO₂ and the supported M/bio-CeO₂ nanocatalysts (M = Pt, Pd, Au, and Ag). Under the optimal synthetic conditions, the resultant bio-CeO₂ could fully maintain the hierarchically porous morphol. of the rape pollen template, with a high specific BET surface area of 71 m² g^-1, much higher than the com. CeO₂ (7.7 m² g^-1). Among the different supported M/bio-CeO₂ catalysts, the Pt/bio-CeO₂ exhibited the best CO oxidation performance with good oxidative catalytic activity and stable performance in five consecutive recycling experiments In-situ DRIFTS demonstrated that the linearly adsorbed CO-Pt⁰ was more stable than CO-Pt^¦Ò+ (especially at high temperature), and the Pt⁰ site (51% in the total amount of Pt) was more active than the Pt^¦Ò+ site (49%) for CO oxidation Furthermore, the DFT calculations suggested the varied CO oxidation mechanisms over the supported nanocatalysts which are depending on the loaded metals associated with both geometric and electronic perspectives.

Molecular Catalysis published new progress about 13822-56-5. 13822-56-5 belongs to catalysis-chemistry, auxiliary class Organic Silicones, name is 3-(Trimethoxysilyl)propan-1-amine, and the molecular formula is C6H17NO3Si, Related Products of catalysis-chemistry.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Forchetti Casarino, Agustin published the artcileSynthesis and characterization of polybenzoxazine/silica-based hybrid nanostructures for flame retardancy applications, Formula: C6H17NO3Si, the publication is Polymer Engineering & Science (2022), 62(5), 1386-1398, database is CAplus.

The objective of this study is to develop polybenzoxazine-silica nanocomposite systems endowed with greater thermal and fire performance. For this purpose, the 3-aminopropyltrimethoxysilane and bisphenol A-based benzoxazine (BA-3aptms) was synthesized. Also, smooth and spherical silica nanoparticles of 50 nm size were prepared following the Stober’s method. The influence of the nanoparticle size and geometry on the properties (laminar morphol., thermal, dynamic-mech., hydrophobicity, and flame retardancy) of the polybenzoxazine/polysilsesquioxane material was investigated. Also, nanocomposites from the conventional benzoxazine (BA-a) and SiO₂ nanoparticles were synthesized for comparative purposes. The addition of nanoparticles in both polybenzoxazines improved the mech., thermal and flammability properties. Likewise, the presence of these nanoparticles conferred to the material a more hydrophobic surface (contact angle around 95¡ã). Particularly, the Pr(BA-3aptms)/NP nanocomposites presented better properties than the BA-a-based systems, due to the presence of laminar-oriented polysilsesquioxane networks chem. bonded to the silica nanoparticles at nanoscale.

Polymer Engineering & Science published new progress about 13822-56-5. 13822-56-5 belongs to catalysis-chemistry, auxiliary class Organic Silicones, name is 3-(Trimethoxysilyl)propan-1-amine, and the molecular formula is C6H17NO3Si, Formula: C6H17NO3Si.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Moon, Hyun June published the artcileUnderstanding the Impacts of Support-Polymer Interactions on the Dynamics of Poly(ethyleneimine) Confined in Mesoporous SBA-15, Computed Properties of 13822-56-5, the publication is Journal of the American Chemical Society (2022), 144(26), 11664-11675, database is CAplus and MEDLINE.

Supported amines are a promising class of CO₂ sorbents offering large uptake capacities and fast uptake rates. Among supported amines, poly(ethyleneimine) (PEI) phys. impregnated in the mesopores of SBA-15 silica is widely used. Within these composite materials, the chain dynamics and morphologies of PEI strongly influence the CO₂ capture performance, yet little is known about chain and macromol. mobility in confined pores. Here, we probe the impact of the support-PEI interactions on the dynamics and structures of PEI at the support interface and the corresponding impact on CO₂ uptake performance, which yields critical structure-property relationships. The pore walls of the support are grafted with organosilanes with different chem. end groups to differentiate interaction modes (spanning from strong attraction to repulsion) between the pore surface and PEI. Combinations of techniques, such as quasi-elastic neutron scattering (QENS), ¹H T₁-T₂ relaxation correlation solid-state NMR, and mol. dynamics (MD) simulations, are used to comprehensively assess the phys. properties of confined PEI. We hypothesized that PEI would have faster dynamics when subjected to less attractive or repulsive interactions. However, we discover that complex interfacial interactions resulted in complex structure-property relationships. Indeed, both the chain conformation of the surface-grafted chains and of the PEI around the surface influenced the chain mobility and CO₂ uptake performance. By coupling knowledge of the dynamics and distributions of PEI with CO₂ sorption performance and other characteristics, we determine that the macroscopic structures of the hybrid materials dictate the first rapid CO₂ uptake, and the rate of CO₂ sorption during the subsequent gradual uptake stage is determined by PEI chain motions that promote diffusive jumps of CO₂ through PEI-packed domains.

Journal of the American Chemical Society published new progress about 13822-56-5. 13822-56-5 belongs to catalysis-chemistry, auxiliary class Organic Silicones, name is 3-(Trimethoxysilyl)propan-1-amine, and the molecular formula is C6H17NO3Si, Computed Properties of 13822-56-5.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia