PMID- 31500273
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20201001
IS  - 2079-4991 (Print)
IS  - 2079-4991 (Electronic)
IS  - 2079-4991 (Linking)
VI  - 9
IP  - 9
DP  - 2019 Sep 7
TI  - Synthesis of ZnO Hierarchical Structures and Their Gas Sensing Properties.
LID - 10.3390/nano9091277 [doi]
LID - 1277
AB  - Firecracker-like ZnO hierarchical structures (ZnO HS1) were synthesized by 
      combining electrospinning with hydrothermal methods. Flower-like ZnO hierarchical 
      structures (ZnO HS2) were prepared by a hydrothermal method using 
      ultrasound-treated ZnO nanofibers (ZnO NFs) as raw material which has rarely been 
      reported in previous papers. Scanning electron microscope (SEM) and transmission 
      electron microscope's (TEM) images clearly indicated the existence of 
      nanoparticles on the ZnO HS2 material. Both gas sensors exhibited high 
      selectivity toward H(2)S gas over various other gases at 180  degrees C. The ZnO HS2 gas 
      sensor exhibited higher H(2)S sensitivity response (50 ppm H(2)S, 42.298) at 180 
       degrees C than ZnO NFs (50 ppm H(2)S, 9.223) and ZnO HS1 (50 ppm H(2)S, 17.506) gas 
      sensors. Besides, the ZnO HS2 sensor showed a shorter response time (14 s) 
      compared with the ZnO NFs (25 s) and ZnO HS1 (19 s) gas sensors. The formation 
      diagram of ZnO hierarchical structures and the gas sensing mechanism were 
      evaluated. Apart from the synergistic effect of nanoparticles and nanoflowers, 
      more point-point contacts between flower-like ZnO nanorods were advantageous for 
      the excellent H(2)S sensing properties of ZnO HS2 material.
FAU - Fan, Chao
AU  - Fan C
AD  - Laboratory of Functional Molecular and Materials, School of Physics and 
      Optoelectronic Engineering, Shandong University of Technology, Zibo 255000, 
      China. fc17509190@outlook.com.
AD  - School of Material Science and Engineering, Shandong University of Technology, 
      Zibo 255000, China. fc17509190@outlook.com.
FAU - Sun, Fazhe
AU  - Sun F
AD  - Analysis and Testing Center, Shandong University of Technology, Zibo 255000, 
      China. fazhesun@163.com.
FAU - Wang, Xiaomei
AU  - Wang X
AD  - Laboratory of Functional Molecular and Materials, School of Physics and 
      Optoelectronic Engineering, Shandong University of Technology, Zibo 255000, 
      China. xiaomeiwang@sdut.edu.cn.
FAU - Huang, Zuzhen
AU  - Huang Z
AD  - Laboratory of Functional Molecular and Materials, School of Physics and 
      Optoelectronic Engineering, Shandong University of Technology, Zibo 255000, 
      China. zuzhen_huang@163.com.
FAU - Keshvardoostchokami, Mina
AU  - Keshvardoostchokami M
AD  - Laboratory of Functional Molecular and Materials, School of Physics and 
      Optoelectronic Engineering, Shandong University of Technology, Zibo 255000, 
      China. minak@sdut.edu.cn.
FAU - Kumar, Parveen
AU  - Kumar P
AUID- ORCID: 0000-0001-5566-2843
AD  - Laboratory of Functional Molecular and Materials, School of Physics and 
      Optoelectronic Engineering, Shandong University of Technology, Zibo 255000, 
      China. kumar@sdut.edu.cn.
FAU - Liu, Bo
AU  - Liu B
AD  - Laboratory of Functional Molecular and Materials, School of Physics and 
      Optoelectronic Engineering, Shandong University of Technology, Zibo 255000, 
      China. liub@sdut.edu.cn.
AD  - School of Material Science and Engineering, Shandong University of Technology, 
      Zibo 255000, China. liub@sdut.edu.cn.
LA  - eng
GR  - 61704098/National Natural Science Foundation of China/
GR  - ZR2017BF025/Natural Science Foundation of Shandong Province/
PT  - Journal Article
DEP - 20190907
PL  - Switzerland
TA  - Nanomaterials (Basel)
JT  - Nanomaterials (Basel, Switzerland)
JID - 101610216
PMC - PMC6781051
OTO - NOTNLM
OT  - H2S
OT  - electrospinning
OT  - gas sensing
OT  - hierarchical structures
OT  - hydrothermal
COIS- The authors declare no conflict of interest.
EDAT- 2019/09/11 06:00
MHDA- 2019/09/11 06:01
PMCR- 2019/09/07
CRDT- 2019/09/11 06:00
PHST- 2019/08/13 00:00 [received]
PHST- 2019/08/25 00:00 [revised]
PHST- 2019/09/04 00:00 [accepted]
PHST- 2019/09/11 06:00 [entrez]
PHST- 2019/09/11 06:00 [pubmed]
PHST- 2019/09/11 06:01 [medline]
PHST- 2019/09/07 00:00 [pmc-release]
AID - nano9091277 [pii]
AID - nanomaterials-09-01277 [pii]
AID - 10.3390/nano9091277 [doi]
PST - epublish
SO  - Nanomaterials (Basel). 2019 Sep 7;9(9):1277. doi: 10.3390/nano9091277.