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المؤلفZhou, Xinran
المؤلفZhu, Yongheng
المؤلفLuo, Wei
المؤلفRen, Yuan
المؤلفXu, Pengcheng
المؤلفElzatahry, Ahmed A.
المؤلفCheng, Xiaowei
المؤلفAlghamdi, Abdulaziz
المؤلفDeng, Yonghui
المؤلفZhao, Dongyuan
تاريخ الإتاحة2021-09-08T06:49:46Z
تاريخ النشر2016
اسم المنشورJournal of Materials Chemistry A
المصدرScopus
الرقم المعياري الدولي للكتاب20507488
معرّف المصادر الموحدhttp://dx.doi.org/10.1039/c6ta05687c
معرّف المصادر الموحدhttp://hdl.handle.net/10576/22922
الملخصSemiconductor zinc oxides with a high surface area and porosity offer great potential for their widespread applications, particularly in the areas of optoelectronic devices and solid-state gas sensors owing to their size-dependent physical and chemical properties. Herein, ordered mesoporous ZnO with uniform large mesopores and a crystalline framework is successfully synthesized through a citric acid assisted soft-template strategy using lab-made amphiphilic diblock copolymer poly(ethylene oxide)-b-polystyrene (PEO-b-PS) as a structure directing agent. A gradient calcination treatment is employed to transform the as-made zinc complex/template composites into hierarchically mesoporous crystalline zinc oxides via decomposition of copolymer templates and the intermediate of zinc carbonate, while preserving the highly ordered mesostructure. Owing to its well-connected bimodal mesopores, high surface area and crystalline ZnO framework, the obtained mesoporous ZnO exhibits excellent ethanol sensing performance with a fast response (6 s) and recovery (7 s), and high sensitivity and selectivity. The Royal Society of Chemistry 2016.
اللغةen
الناشرRoyal Society of Chemistry
الموضوعChemical sensors
Crystalline materials
Decomposition
Ethylene
Gas detectors
Gas sensing electrodes
Mesoporous materials
Optoelectronic devices
Polyethylene oxides
Semiconductor devices
Solid-state sensors
Zinc
Amphiphilic diblock copolymers
Calcination treatment
Ordered mesoporous
Ordered mesostructure
Physical and chemical properties
Soft-template synthesis
Solid state gas sensors
Structure directing agents
Zinc oxide
العنوانChelation-assisted soft-template synthesis of ordered mesoporous zinc oxides for low concentration gas sensing
النوعArticle
الصفحات15064-15071
رقم العدد39
رقم المجلد4
dc.accessType Abstract Only


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