假电容
杂原子
氮气
活性炭
碳纤维
多孔性
硫黄
纹理(宇宙学)
化学工程
比表面积
电化学
混合(物理)
化学
煅烧
材料科学
无机化学
超级电容器
有机化学
电极
吸附
复合数
复合材料
催化作用
图像(数学)
人工智能
物理化学
量子力学
工程类
计算机科学
戒指(化学)
物理
作者
Panudetch Treeweranuwat,Pawan Boonyoung,Metta Chareonpanich,Khanin Nueangnoraj
出处
期刊:ACS omega
[American Chemical Society]
日期:2020-01-23
卷期号:5 (4): 1911-1918
被引量:36
标识
DOI:10.1021/acsomega.9b03586
摘要
Surface functionalities of activated carbon can be affected by the presence of heteroatoms such as oxygen, sulfur, and nitrogen. In this work, nitrogen-doped activated carbons (NACs) were prepared from shrimp shells, and the effects of the mixing ratio (raw material to an activating agent) on the porous texture and surface functionalities were investigated. It was found that, with increasing the mixing ratio (resulting in increasing N/C), the development of mesoporosity was significantly observed. This led to decreasing microporosity and specific surface areas (SSAs). The obtained NACs exhibited nitrogen functionalities in the forms of pyridinic and pyrrolic groups. It was found that although the pyridinic-N has a detrimental effect on the SSA, it does favor the pseudocapacitance, leading to an enhancement in the ion storage capability regardless of the low SSA.
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