کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
73101 49044 2014 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Rapid aqueous synthesis of ordered mesoporous carbons: Investigation of synthesis variables and application as anode materials for Li-ion batteries
ترجمه فارسی عنوان
سنتز سریع آب های منظم از کربن های مزوپور منظم: بررسی متغیرهای سنتز و کاربرد آن به عنوان مواد آند برای باتری های لیتیوم یون
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
چکیده انگلیسی


• OMC were prepared via a rapid aqueous soft-templating route.
• Influence of preparation temperature on structure and texture was investigated in detail.
• Highly ordered materials can be prepared in the temperature range 72–115 °C.
• OMC show excellent cycling stability as anode materials for Li-ion batteries.

Ordered mesoporous carbons (OMC) were synthesized via a direct templating pathway by a synthesis route that features short duration, moderate temperature and aqueous media. Resorcinol was used as carbon precursor and hexamethylenetetramine as a source of formaldehyde and ammonia to respectively cross-link the framework and regulate the pH. The temperature of the heat treatment leading to the formation of the solid polymer was shown to have a strong influence on the structural and textural parameters. In particular, moderate temperatures led to the coexistence of differently-sized entangled hexagonal mesostructures, whereas the higher temperatures led to a sharp decrease in the mesopore volume. The performance of these materials as anode materials for Li-ion batteries has been investigated in detail. Although these OMC show reversible capacities similar to those reported for hard carbons, their long-term cycling remains very stable for over 100 cycles of charge/discharge. The optimization of the reported short preparation pathway offers new possibilities regarding the application of ordered mesoporous carbons in various fields, such as energy storage, sorption and heterogeneous catalysis.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Microporous and Mesoporous Materials - Volume 195, 1 September 2014, Pages 92–101
نویسندگان
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