کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7783563 | 1500572 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Facile synthesis of palladium and gold nanoparticles by using dialdehyde nanocellulose as template and reducing agent
ترجمه فارسی عنوان
سنتز نازک پالادیوم و نانوذرات طلا با استفاده از نانوسلولز دیالدئید به عنوان الگو و عامل کاهش دهنده
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کلمات کلیدی
پالادیوم، طلا، نانوذرات، نانوفیلترهای سلولز، کاتالیزوری، آلدهید،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
چکیده انگلیسی
Cellulose nanofibrils (CNFs) were firstly prepared by 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) oxidation and further oxidized to 2,3-dialdehyde nanocelluloses (DANCs) by periodate oxidation. Furthermore, by using DANCs as reducing as well as stabilizing agent, palladium (Pd) and gold (Au) nanoparticles (NPs) supported on nanocellulose (PdNPs@NC and AuNPs@NC) were synthesized, respectively. The reduction of Pd or Au ions to its metallic form by DANCs was confirmed by UV-vis spectra, XRD, and XPS. TEM results showed that Pd and Au NPs were homogenously deposited onto cellulose nanofibrils, respectively. The catalytic performance of PdNPs@NC was further investigated by Suzuki coupling reaction. The product yield of the Suzuki coupling reaction between aryl bromides and phenyl boronic acid was more than 90% after 1â¯h with 0.1 mol% PdNPs@NC catalyst, which demonstrated that the synthesized PdNPs@NC nanohybrid could be successfully applied in Suzuki coupling reaction with an efficient catalytic activity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 186, 15 April 2018, Pages 132-139
Journal: Carbohydrate Polymers - Volume 186, 15 April 2018, Pages 132-139
نویسندگان
Kaitao Zhang, Minggui Shen, He Liu, Shibin Shang, Dan Wang, Henrikki Liimatainen,