This review comprehensively introduces and summarizes the roles of various pore structures and the research progress on different hierarchical porous carbon(HPC)materials used as capacitive deion-ization(CDI)electrodes.The study also highlights the challenges faced by HPC as a CDI electrode mate-rial in practical applications,such as the limited development and utilization of environmentally friendly activators,the necessity for a deeper understanding of the structure-performance relationship between HPC and pseudocapacitive materials,and the lack of research on system design.Furthermore,it outlines the fu-ture development directions in the capacitive deionization field,offering valuable insights for researchers aiming to create environmentally friendly,low-carbon,and high-performance CDI electrode materials.
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