Phosphorus and sulfur dual doped hierarchic porous carbons with superior supercapacitance performance
Phosphorus and sulfur dual doped hierarchic porous carbons with superior supercapacitance performance
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具有优异超级电容性能的磷硫双掺杂多级多孔碳
DOI：
10.1016/j.electacta.2016.10.184
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发表时间：
2016-12
影响因子：
6.6
通讯作者：
Huixia Feng
中科院分区：
文献类型：
--
作者：
Deyi Zhang;Mei Han;YuBing Li;Longyan Lei;Yonghua Shang;Kunjie Wang;Yi Wang;Zhongkui Zhang;Xudong Zhang;Huixia Feng
以植酸为前驱体，SBA-15为模板剂，制备了一种新型的磷硫双掺杂多孔炭材料（PSDPC），该材料具有多级孔结构、大比表面积和超大孔容。所报道的材料的比表面积和总孔体积分别达到2276 m2 g-1和3.95 cm 3 g-1。P和S杂原子主要通过P单键、C键和类噻吩硫物种成功地引入到碳基体的骨架中，掺杂量分别为1.88和1.23at.%分别对于P和S杂原子。该材料具有较好的储放容量、倍率性能和循环性能，比电容达到253 F g-1，电流密度从0.5 A g-1增加到10 A g-1，比电容没有明显下降，1000次充放电循环后比电容保持率达到100%。
This work presented a novel phosphorus and sulfur dual doped porous carbon materials (PSDPC) with hierarchic porous structure, large specific surface area and extra-large pore volume fabricated using phytic acid as precursor and SBA-15 as template. The specific surface areas and total pore volume of the reported materials reached 2276 m2g−1and 3.95 cm3g−1, respectively. The P and S heteroatoms were successfully incorporated into the framework of the carbon matrix mainly by Psingle bondC bond and thiophene-like sulfur species, doping level was found to be 1.88 and 1.23 at.% for P and S heteroatoms, respectively. The reported material exhibited competitive electric storage/release capacity, excellent rate capability and good cycle performance, which specific capacitance reached 253 F g−1, no apparent decrease of the specific capacitance was observed as the current density increased from 0.5 to 10 A g−1, and the specific capacitance retention reached 100% after 1000 times charge/discharge cycle.
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