Dimethyl carbonate production via transesterification reaction using nitrogen functionalized graphene oxide nanosheets

被引:25
作者
Kumar, Navneet [1 ]
Srivastava, Vimal Chandra [1 ]
机构
[1] Indian Inst Technol Roorkee, Dept Chem Engn, Roorkee 247667, Uttarakhand, India
关键词
DMC synthesis; Transesterification; Functionalized graphene; Nitrogen; Electrochemical; PROPYLENE CARBONATE; EFFICIENT SYNTHESIS; GREENER SYNTHESIS; CATALYSTS; OXIDATION; REDUCTION; NITRIDE; NANOMATERIALS; CONVERSION; STABILITY;
D O I
10.1016/j.renene.2021.04.111
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Nitrogen-functionalized graphene oxide (GO) nanocatalysts were prepared using ammonia, methylamine, ethylamine, and hydrazine hydrate as a nitrogen source. Nanocatalysts samples were thoroughly characterized using XRD, Raman, FTIR, XPS, FESEM, TEM, and TGA techniques. Quantitative and qualitative analyses of surface acidic and basic sites were done by NH3- and CO2-TPD techniques. Nanocatalysts were further examined for DMC production via transesterification reaction of propylene carbonate (PC) with CH3OH. Quantitative analysis of nitrogen-containing functional groups in the prepared sample with respect to other functional moieties was performed. Among various nanocatalysts, ammonia functionalized GO (AGO) was found to be the best for DMC production. At optimized reaction conditions of temperature (180 degrees C), time (6 h), and catalyst dose (1 wt% with respect PC), the highest DMC yield of similar to 50% was observed. Reusability studies using AGO nanocatalyst were conducted up to four consecutive test cycles to evaluate catalysts' potentiality towards DMC synthesis. Thus, N-functionalized GO is a useful metal-free nanocatalyst that could also be explored for other chemical processes. (C) 2021 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1 / 13
页数:13
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