期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 53, 期 19, 页码 4877-4880出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201402513
关键词
carbides; carbon; cyclic voltammetry; electrochemistry; oxidation
资金
- U.S. Department of Energy, Office of Science, Basic Energy Sciences [ER46473]
Porous carbons are widely used in energy storage and gas separation applications, but their synthesis always involves high temperatures. Herein we electrochemically selectively extract, at ambient temperature, the metal atoms from the ternary layered carbides, Ti3AlC2, Ti2AlC and Ti3SiC2 (MAX phases). The result is a predominantly amorphous carbide-derived carbon, with a narrow distribution of micropores. The latter is produced by placing the carbides in HF, HCl or NaCl solutions and applying anodic potentials. The pores that form when Ti3AlC2 is etched in dilute HF are around 0.5nm in diameter. This approach forgoes energy-intensive thermal treatments and presents a novel method for developing carbons with finely tuned pores for a variety of applications, such as supercapacitor, battery electrodes or CO2 capture.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据