Tunable high-performance microwave absorption for manganese dioxides by one-step Co doping modification

Guocheng Lv, Xuebing Xing, Limei Wu, Wei Teh Jiang, Zhaohui Li, Libing Liao

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

The frequencies of microwave absorption can be affected by the permanent electric dipole moment which could be adjusted by modifying the crystal symmetry of the microwave absorbing materials. Herein, we corroborate this strategy experimentally and computationally to the microwave absorption of manganese dioxides. Nanosized Co-doped cryptomelane (Co-Cryp) was successfully synthesized by a one-step reaction. The introduction of Co(III) induced a change of crystal symmetry from tetragonal to monlclinic, which could lead to an increase of its permanent electric dipole moment. As a result, the frequencies of maximum microwave absorption were regulated in the range of 7.4 to 13.9 GHz with a broadened bandwidths. The results suggested that microwave absorption of manganese dioxides can be tailored with Co doping to expand their potential uses for abatement of various microwave pollutions.

Original languageEnglish
Article number37400
JournalScientific reports
Volume6
DOIs
Publication statusPublished - 2016 Nov 17

All Science Journal Classification (ASJC) codes

  • General

Fingerprint

Dive into the research topics of 'Tunable high-performance microwave absorption for manganese dioxides by one-step Co doping modification'. Together they form a unique fingerprint.

Cite this