Journal
CATALYSTS
Volume 6, Issue 12, Pages -Publisher
MDPI
DOI: 10.3390/catal6120188
Keywords
ZnO; morphologies; polar facets; oxygen vacancies; defects; strong metal-support interactions (SMSI); acid-base properties; electron-hole recombination; band gap; catalytic activities
Categories
Funding
- National Natural Science Foundation of China [21207039, 51108187, U1201231, B5151050]
- Fundamental Research Funds for the Central Universities [2015zz052, D215086w, D2154140]
- Guangzhou science and technology plan [201607010095]
- Natural Science Foundation of Guangdong Province, China [S2011010000737]
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Zinc oxide (ZnO), with the unique chemical and physical properties of high chemical stability, broad radiation absorption range, high electrochemical coupling coefficient, and high photo-stability, is an attractive multifunctional material which has promoted great interest in many fields. What is more, its properties can be tuned by controllable synthesized morphologies. Therefore, after the success of the abundant morphology controllable synthesis, both the morphology-dependent ZnO properties and their related applications have been extensively investigated. This review concentrates on the properties of morphology-dependent ZnO and their applications in catalysis, mainly involved reactions on green energy and environmental issues, such as CO2 hydrogenation to fuels, methanol steam reforming to generate H-2, bio-diesel production, pollutant photo-degradation, etc. The impressive catalytic properties of ZnO are associated with morphology tuned specific microstructures, defects or abilities of electron transportation, etc. The main morphology-dependent promotion mechanisms are discussed and summarized.
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