نتایج جستجو برای: graphene oxide nanosheets

تعداد نتایج: 218904  

Journal: :Dalton transactions 2014
Praveen K Khatri Shivani Choudhary Raghuvir Singh Suman L Jain Om P Khatri

A rhenium-oxo complex such as methyltrioxorhenium (MTO) has been homogeneously immobilized on a Schiff base modified graphene oxide (GrO) support via covalent bonding. The loading of MTO on GrO nanosheets was monitored by FTIR, TG-DTA, and elemental analyses. The developed heterogeneous catalyst is found to be efficient for the oxidation of various amines to the corresponding N-oxides using hyd...

Journal: :Physical chemistry chemical physics : PCCP 2016
Praveen Nedumpully-Govindan Esteban N Gurzov Pengyu Chen Emily H Pilkington William J Stanley Sara A Litwak Thomas P Davis Pu Chun Ke Feng Ding

Human islet amyloid polypeptide (hIAPP or amylin) aggregation is directly associated with pancreatic β-cell death and subsequent insulin deficiency in type 2 diabetes (T2D). Since no cure is currently available for T2D, it is of great benefit to devise new anti-aggregation molecules, which protect β-cells against hIAPP aggregation-induced toxicity. Engineered nanoparticles have been recently ex...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم پایه 1392

در این تحقیق، از روش آسان و موثر رفلاکس جهت سنتز نانوذرات مس ایندیوم سولفید استفاده شد و نانو ساختار های متنوع روی اکسید با بکارگیری روش هیدروترمال سنتز شدند. سپس با کمک یک فرایند حرارتی نانوکامپوزیت zno/cis تهیه شد. محصولات به وسیله روش های پراش اشعه ایکس (xrd)، طیف سنجی زیر قرمز (ft-ir)، میکروسکوپ الکترونی روبشی (sem) و طیف سنجی uv- visمورد شناسایی قرار گرفتند. تصاویر sem، مورفولوژی نانوذره ب...

Journal: :Nanoscale 2011
Meixia Li Jun E Zhu Lili Zhang Xu Chen Huimin Zhang Fazhi Zhang Sailong Xu David G Evans

Layered double hydroxides (LDHs), also known as hydrotalcite-like anionic clays, have been investigated widely as promising electrochemical active materials. Due to the inherently weak conductivity, the electrochemical properties of LDHs were improved typically by utilization of either functional molecules intercalated between LDH interlayer galleries, or proteins confined between exfoliated LD...

Journal: :Applied sciences 2023

In this article, a facile way for the doping of graphene and derivatives with silver nanoparticles at different Ag ratios is described. were formed directly on surface two substrates dispersed in dimethylformamide by reduction cations NaBH4. A few layered nanosheets (FLG) produced from graphite reduced oxide functionalized amino arylsulfonates (f-rGO) used as substrates. The final graphene/Ag n...

 In this paper, a novel ternary nanocomposite namely reduced graphene oxide/hydroxyapatite/silver (rGO/HAP/Ag) was prepared by a simple hydrothermal method using graphene oxide nanosheets, Ca(NO3)2, (NH4)2HPO4, and AgNO3 as starting materials. The as-prepared nanocomposite was characterized by using various photophysical techniqu...

 In this paper, a novel ternary nanocomposite namely reduced graphene oxide/hydroxyapatite/silver (rGO/HAP/Ag) was prepared by a simple hydrothermal method using graphene oxide nanosheets, Ca(NO3)2, (NH4)2HPO4, and AgNO3 as starting materials. The as-prepared nanocomposite was characterized by using various photophysical techniqu...

Journal: :Nanoscale 2014
Sudong Yang Chengmin Shen Yuan Tian Xiaogang Zhang Hong-Jun Gao

Single-crystal palladium nanoparticles (NPs) with controllable morphology were synthesized on the surface of reduced graphene oxide (RGO) by a novel procedure, namely reducing palladium acetylacetonate [Pd(acac)2] with the N-methylpyrrolidone (NMP) solvent in the presence of poly(vinylpyrrolidone) (PVP). The resulting Pd nanocrystals (8 nm in diameter) were uniformly distributed on the RGO. A p...

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