کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
828324 1470297 2015 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Dimensionality effects of carbon-based thermal additives for microporous adsorbents
ترجمه فارسی عنوان
اثرات ابعادی افزودنی های حرارتی بر پایه کربن برای جاذب های میکروپروسسوری
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
چکیده انگلیسی


• Investigated carbon nanomaterials as thermal binders with various thermal properties
• Determined two-dimensional few-layer graphene as the most effective thermal binder
• Demonstrated results consistent with predictions using effective medium analysis

We present a systematic study of carbon nanomaterials with different geometries and thermal properties, including few-layer graphene (FLG), graphene oxide (GO), and functionalized carbon nanotubes (fCNT) as additives to enhance the thermal conductivity of microporous adsorbent materials. The dimensionality and intrinsic thermal conductivity of the additives were found to be critical for both maximizing the thermal conductivity enhancement, and minimizing the reduction in the adsorption capacity of the active materials. We demonstrated that two-dimensional (2D) FLG was the most effective thermal additive for zeolite (ZT) adsorbents due to its high thermal conductivity and preferential 2D geometry. Meanwhile, negligible enhancement was observed from one-dimensional (1D) additives such as fCNTs, which is consistent with the predictions from a modified effective medium analysis (EMA). Our work provides insights for the development of additives to enhance the thermal performance of porous materials in applications such as adsorption heat pumps, gas storage, and separation processes.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials & Design - Volume 85, 15 November 2015, Pages 520–526
نویسندگان
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