کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
191105 | 459715 | 2010 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: High-capacitance supercapacitors using nitrogen-decorated porous carbon derived from novolac resin containing peptide linkage High-capacitance supercapacitors using nitrogen-decorated porous carbon derived from novolac resin containing peptide linkage](/preview/png/191105.png)
We fabricated nitrogen-decorated porous carbon exhibiting high capacitance per unit volume and unit weight via chemical activation of novolac resin containing peptide linkage. The porosity and the amount of nitrogen atoms were controlled by changing the molecular weight of novolac resin, the added amount of potassium hydroxide, or both. After chemical activation, positively charged nitrogen atoms (i.e., pyridine/pyrrole) at 400.3 eV in photoemission spectra contributed to both a shift in the point of zero charge toward negative potential and the generation of pseudocapacitance. Suitably developed pores and the positively charged nitrogen atoms make nitrogen-decorated novolac resin-derived porous carbon a promising material for electrodes in high-performance supercapacitors.
Journal: Electrochimica Acta - Volume 55, Issue 20, 1 August 2010, Pages 5624–5628