High-performance supercapacitor based on a ternary nanocomposites of NiO, polyaniline, and Ni/NiO-decorated MWCNTs
學年 110
學期 2
出版（發表）日期 2022-05-01
作品名稱 High-performance supercapacitor based on a ternary nanocomposites of NiO, polyaniline, and Ni/NiO-decorated MWCNTs
作品名稱（其他語言）
著者 Yu-Sheng Hsiao; Cai-Wan Chang-Jian; Tzu-Yen Huang; Ying-Lin Chen; Jen-Hsien Huang; Nian-Jheng Wu; Shih-Chieh Hsu; Chih-Ping Cheng
單位
出版者
著錄名稱、卷期、頁數 Journal of the Taiwan Institute of Chemical Engineers 134, 104318
摘要 Background Although high theoretical capacitance, low cost, and superior cycling reversibility make NiO a promising material for preparing supercapacitors, poor conductivity and ionic transport have limited its applicability. Methods To overcome these drawbacks, in this study we prepared ternary composites from porous NiO nanosheets, polyaniline:poly(sodium 4-styrenesulfonate) (PANI:PSS), and Ni/NiO-decorated multiwalled carbon nanotubes (MWCNTs). Using a spray-drying technique, the conductive PANI:PSS was bound tightly to the porous NiO nanosheets to form PANI:PSS/NiO (P-NiO) microspheres. Here, the PANI:PSS infiltrated the nanopores of NiO and modified the NiO surface, thereby decreasing the internal resistance and avoiding restacking of the NiO nanosheets. Moreover, we synthesized MWCNTs decorated with Ni/NiO dual-phase nanoparticles; here, the deposition of the Ni/NiO nanoparticles improved both the electrical conductivity and capacitive behavior of the MWCNTs. Significant findings As a result, the modified MWCNTs (m-MWCNTs) functioned as a novel additive that lowered the external resistance among the P-NiO microspheres. An asymmetric supercapacitor employing the designed ternary system and active carbon as electrodes achieved a remarkable specific capacitance of 105.6 F/g at 0.5 A/g, a maximum energy density of 33 W h/kg, and superior cycling stability.
關鍵字 NiO;MWCNT;Supercapacitor;Ternary composite;Spray-dry
語言 en_US
ISSN
期刊性質 國外
收錄於 SCI
產學合作
通訊作者 Shih-Chieh Hsu
審稿制度 否
國別 USA
公開徵稿
出版型式 ,電子版,紙本
相關連結

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/122648 )