کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8023372 1517533 2018 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Facilitated hydrogen release kinetics from amine borane functionalization on gate-opening metal-organic framework
ترجمه فارسی عنوان
سینتیک آزادی هیدروژن از کارکرد آمین بورن در چارچوب فلزی - آلی گیتار
کلمات کلیدی
ذخیره سازی هیدروژن، چارچوب فلزی-ارگانیک، بورن آمونیاک، کاربردکردن سطح، سینتیک تولید هیدروژن،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
چکیده انگلیسی
For the first time, we functionalized the gate-opening metal-organic framework (GO-MOF) of MIL-53(Al) with ammonia borane (AB, NH3BH3) via post-synthesis method. In this report, unusual structural breathing and dehydrogenation behaviors of AB doped MOF (MIL-53-AB) were discovered. Surface coating triggered the GO-MOF breathing phenomenon and opened the structure, and gate was closed after dehydrogenation. The dehydrogenation peak temperature was greatly reduced by 30 °C compared to that of pristine AB with suppressed byproduct like ammonia. The MOFs with surface coated AB exhibited remarkably fast hydrogen generation rate and corresponding low apparent activation energy, estimated at <40 kJ/mol, which is much lower than that of crystalline AB, and even comparable to AB hydrolysis with catalysts. The ammonia borane functionalized MIL-53 has shown greatly improved dehydrogenation from solid phase of AB.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface and Coatings Technology - Volume 350, 25 September 2018, Pages 12-19
نویسندگان
, , , ,