碳複合材料於電容去離子技術之應用

Nanoporous Carbon-based Composites as Electrode Materials for Capacitive Deionization

黃靖婷(Jingting Huang) ； 吳柏璋(Po-Chang Wu) ； 侯嘉洪(Chia-Hung Hou)

《化學》 75卷4期 (2017/12) Pp. 323-331

https://doi.org/10.6623/chem.2017037

摘要

氣候變遷、水資源和能源有相互依存的關聯，電容去離子技術(capacitive deionization, CDI)具有低耗能、清淨、環境友善性的特性，成為最具發展潛力的電化學脫鹽技術之一。電容去離子技術是以多孔的碳材料作為電極，利用電雙層電容的機制，有效分離與貯存水體中的帶電荷離子，達到淡化鹽水的目的。目前國際上學術研究有關於電容去離子技術之研究大多致力於開發高電容、脫鹽效能的碳電極材料，本文對於近幾年碳複合材料，包含碳-碳複合材料、碳-金屬氧化物複合材料及碳-導電聚合物複合材料，在電容去離子技術的發展與應用進行介紹。

關鍵字

電容去離子 ； 複合電極材料 ； 金屬氧化物 ； 導電性聚合物

並列摘要

The importance of the interdependence between water and energy is well recognized. It is important to develop energy-efficient desalination technologies for turning salt water into freshwater. Capacitive deionization (CDI) with nanoporous carbon materials is a promising desalination process to remove salt ions from aqueous water due to its low energy input, low fouling potential, and environmental friendliness. In CDI, the mechanism is based on the charge separation and capacitive electrosorption, in which ions can be electrostatically held within the charged pores of nanoporous carbon electrodes by electrical double layer formation. Most recently, many efforts have been made on the development of novel carbon-based materials for high-performance electrosorption of salt ions. In this review, three major categories of nanoporous carbon-based composite electrodes, including carbon-carbon composites, carbon-metal oxide composites, carbon- polymer composites, are presented for CDI applications.

並列關鍵字

Capacitive deionization ； Composite electrode ； Metal oxide ； Conductive polymer