当前位置：
X-MOL 学术
›
New J. Chem.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
3D hierarchical tri-doped porous carbon derived from calcium lignosulfonate for high-performance zinc ion hybrid capacitors
New Journal of Chemistry ( IF 2.7 ) Pub Date : 2023-09-04 , DOI: 10.1039/d3nj03537a Jianhui Ma 1 , Shunsheng Yang 1 , Tao Huang 1 , Xihong Zu 1 , Yingjuan Sun 2 , Wenli Zhang 1, 2, 3
New Journal of Chemistry ( IF 2.7 ) Pub Date : 2023-09-04 , DOI: 10.1039/d3nj03537a Jianhui Ma 1 , Shunsheng Yang 1 , Tao Huang 1 , Xihong Zu 1 , Yingjuan Sun 2 , Wenli Zhang 1, 2, 3
Affiliation
|
Zinc-ion hybrid capacitors with neutral electrolytes have good safety, excellent power density, and energy density. However, zinc-ion hybrid capacitors rely on expensive porous carbon cathode materials. Additional chemical reagents are required to activate precursor during the pore-forming process. Therefore, it is essential to develop porous carbon with low preparation costs and high performance. In this work, low-cost calcium lignosulfonate (CLS) as a carbon source was used to prepare N, O, and S tri-doped hierarchical porous carbon (LHPC) by a one-step carbonization method without additional pore-forming agents. During high-temperature carbonization, the self-pyrolysis of CLS yields a variety of gaseous products as well as inorganic salts like calcium carbonate and calcium sulfate, which work as pore-forming agents. Used as a cathode, LHPC-700 was assembled into an asymmetric zinc ion electrochemical capacitor. The capacitor exhibits a gravimetric specific capacitance of 178.7 F g−1 at a current density of 0.1 A g−1 and an energy density of 63.5 W h kg−1. This study provides an idea for the sustainable utilization of lignin resources to prepare three-dimensional hierarchical porous carbon electrode materials.
中文翻译：
源自木质素磺酸钙的 3D 分层三掺杂多孔碳，用于高性能锌离子混合电容器
采用中性电解质的锌离子混合电容器具有良好的安全性、优异的功率密度和能量密度。然而，锌离子混合电容器依赖于昂贵的多孔碳阴极材料。在成孔过程中需要额外的化学试剂来激活前体。因此，开发制备成本低、性能优异的多孔碳势在必行。本工作以低成本木质素磺酸钙（CLS）为碳源，通过一步碳化法制备了N、O、S三掺杂分级多孔碳（LHPC），无需额外的成孔剂。在高温碳化过程中，CLS的自热解产生多种气态产物以及碳酸钙和硫酸钙等无机盐，它们可作为造孔剂。用作阴极，LHPC-700被组装成不对称锌离子电化学电容器。该电容器的重量比电容为 178.7 F g-1，电流密度为0.1 A g -1，能量密度为63.5 W h kg -1。该研究为可持续利用木质素资源制备三维分级多孔碳电极材料提供了思路。
更新日期：2023-09-04
中文翻译：
源自木质素磺酸钙的 3D 分层三掺杂多孔碳，用于高性能锌离子混合电容器
采用中性电解质的锌离子混合电容器具有良好的安全性、优异的功率密度和能量密度。然而，锌离子混合电容器依赖于昂贵的多孔碳阴极材料。在成孔过程中需要额外的化学试剂来激活前体。因此，开发制备成本低、性能优异的多孔碳势在必行。本工作以低成本木质素磺酸钙（CLS）为碳源，通过一步碳化法制备了N、O、S三掺杂分级多孔碳（LHPC），无需额外的成孔剂。在高温碳化过程中，CLS的自热解产生多种气态产物以及碳酸钙和硫酸钙等无机盐，它们可作为造孔剂。用作阴极，LHPC-700被组装成不对称锌离子电化学电容器。该电容器的重量比电容为 178.7 F g-1，电流密度为0.1 A g -1，能量密度为63.5 W h kg -1。该研究为可持续利用木质素资源制备三维分级多孔碳电极材料提供了思路。
京公网安备 11010802027423号