电容去离子
材料科学
涂层
纳米复合材料
介孔材料
碳纤维
化学工程
纳米技术
纳米颗粒
球体
复合材料
电化学
化学
复合数
电极
物理
生物化学
物理化学
天文
工程类
催化作用
作者
Yijian Tang,Yuxin Shi,Yichun Su,Shuai Cao,Jinliang Hu,Huijie Zhou,Yangyang Sun,Zheng Liu,Songtao Zhang,Huaiguo Xue,Huan Pang
标识
DOI:10.1002/advs.202403802
摘要
Exploring new carbon-based electrode materials is quite necessary for enhancing capacitive deionization (CDI). Here, hollow mesoporous carbon spheres (HMCSs)/metal-organic frameworks (MOFs) derived carbon materials (NC(M)/HMCSs and NC(M)@HMCSs) are successfully prepared by interface-coating and space-encapsulating design, respectively. The obtained NC(M)/HMCSs and NC(M)@HMCSs possess a hierarchical hollow nanoarchitecture with abundant nitrogen doping, high specific surface area, and abundant meso-/microporous pores. These merits are conducive to rapid ion diffusion and charge transfer during the adsorption process. Compared to NC(M)/HMCSs, NC(M)@HMCSs exhibit superior electrochemical performance due to their better utilization of the internal space of hollow carbon, forming an interconnected 3D framework. In addition, the introduction of Ni ions is more conducive to the synergistic effect between ZIF(M)-derived carbon and N-doped carbon shell compared with other ions (Mn, Co, Cu ions). The resultant Ni-1-800-based CDI device exhibits excellent salt adsorption capacity (SAC, 37.82 mg g
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