PMID- 35438351
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20230103
IS  - 2150-5551 (Electronic)
IS  - 2311-6706 (Print)
IS  - 2150-5551 (Linking)
VI  - 14
IP  - 1
DP  - 2022 Apr 19
TI  - Ultralight Magnetic and Dielectric Aerogels Achieved by Metal-Organic Framework 
      Initiated Gelation of Graphene Oxide for Enhanced Microwave Absorption.
PG  - 107
LID - 10.1007/s40820-022-00851-3 [doi]
LID - 107
AB  - Metal-organic frameworks (MOFs) are used to directly initiate the gelation of 
      graphene oxide (GO), producing MOF/rGO aerogels. The ultralight magnetic and 
      dielectric aerogels show remarkable microwave absorption performance with 
      ultralow filling contents. The development of a convenient methodology for 
      synthesizing the hierarchically porous aerogels comprising metal-organic 
      frameworks (MOFs) and graphene oxide (GO) building blocks that exhibit an 
      ultralow density and uniformly distributed MOFs on GO sheets is important for 
      various applications. Herein, we report a facile route for synthesizing 
      MOF/reduced GO (rGO) aerogels based on the gelation of GO, which is directly 
      initiated using MOF crystals. Free metal ions exposed on the surface of MIL-88A 
      nanorods act as linkers that bind GO nanosheets to a three-dimensional porous 
      network via metal-oxygen covalent or electrostatic interactions. The 
      MOF/rGO-derived magnetic and dielectric aerogels Fe(3)O(4)@C/rGO and Ni-doped 
      Fe(3)O(4)@C/rGO show notable microwave absorption (MA) performance, 
      simultaneously achieving strong absorption and broad bandwidth at low thickness 
      of 2.5 (- 58.1 dB and 6.48 GHz) and 2.8 mm (- 46.2 dB and 7.92 GHz) with ultralow 
      filling contents of 0.7 and 0.6 wt%, respectively. The microwave attenuation 
      ability of the prepared aerogels is further confirmed via a radar cross-sectional 
      simulation, which is attributed to the synergistic effects of their 
      hierarchically porous structures and heterointerface engineering. This work 
      provides an effective pathway for fabricating hierarchically porous MOF/rGO 
      hybrid aerogels and offers magnetic and dielectric aerogels for ultralight MA.
CI  - (c) 2022. The Author(s).
FAU - Huang, Xiaogu
AU  - Huang X
AD  - Institute of Advanced Materials and Flexible Electronics (IAMFE), School of 
      Chemistry and Materials Science, Nanjing University of Information Science and 
      Technology, Nanjing, 210044, People's Republic of China. hxg@nuist.edu.cn.
FAU - Wei, Jiawen
AU  - Wei J
AD  - Institute of Advanced Materials and Flexible Electronics (IAMFE), School of 
      Chemistry and Materials Science, Nanjing University of Information Science and 
      Technology, Nanjing, 210044, People's Republic of China.
FAU - Zhang, Yunke
AU  - Zhang Y
AD  - Institute of Advanced Materials and Flexible Electronics (IAMFE), School of 
      Chemistry and Materials Science, Nanjing University of Information Science and 
      Technology, Nanjing, 210044, People's Republic of China.
FAU - Qian, BinBin
AU  - Qian B
AD  - Department of Chemical and Biological Engineering, Monash University, Victoria, 
      3800, Australia.
AD  - School of Chemistry and Environmental Engineering, Yancheng Teachers University, 
      Yancheng, 224002, People's Republic of China.
FAU - Jia, Qi
AU  - Jia Q
AD  - College of Field Engineering, Army Engineering University of PLA, Nanjing, 
      210007, People's Republic of China.
FAU - Liu, Jun
AU  - Liu J
AD  - College of Field Engineering, Army Engineering University of PLA, Nanjing, 
      210007, People's Republic of China.
FAU - Zhao, Xiaojia
AU  - Zhao X
AD  - Hebei Key Laboratory of Inorganic Nano-Materials, College of Chemistry and 
      Materials Science, Hebei Normal University, Shijiazhuang, 050024, People's 
      Republic of China.
FAU - Shao, Gaofeng
AU  - Shao G
AD  - Institute of Advanced Materials and Flexible Electronics (IAMFE), School of 
      Chemistry and Materials Science, Nanjing University of Information Science and 
      Technology, Nanjing, 210044, People's Republic of China. gfshao@nuist.edu.cn.
LA  - eng
PT  - Journal Article
DEP - 20220419
PL  - Germany
TA  - Nanomicro Lett
JT  - Nano-micro letters
JID - 101727940
PMC - PMC9019009
OTO - NOTNLM
OT  - Gelation mechanism
OT  - Magnetic and dielectric aerogels
OT  - Metal-organic frameworks
OT  - Microwave absorption
OT  - Radar cross-sectional simulation
EDAT- 2022/04/20 06:00
MHDA- 2022/04/20 06:01
PMCR- 2022/04/19
CRDT- 2022/04/19 12:04
PHST- 2022/01/27 00:00 [received]
PHST- 2022/03/15 00:00 [accepted]
PHST- 2022/04/19 12:04 [entrez]
PHST- 2022/04/20 06:00 [pubmed]
PHST- 2022/04/20 06:01 [medline]
PHST- 2022/04/19 00:00 [pmc-release]
AID - 10.1007/s40820-022-00851-3 [pii]
AID - 851 [pii]
AID - 10.1007/s40820-022-00851-3 [doi]
PST - epublish
SO  - Nanomicro Lett. 2022 Apr 19;14(1):107. doi: 10.1007/s40820-022-00851-3.