H3BO3-Induced Formation of Metal Oxide Hollow Spheres in Flowing Aerosols

2009 ◽  
Vol 113 (14) ◽  
pp. 5455-5459 ◽  
Author(s):  
Xiao Song ◽  
Xing Ding ◽  
Pengna Li ◽  
Zhihui Ai ◽  
Lizhi Zhang
Keyword(s):  
Metal Oxide ◽  
Hollow Spheres

scholarly journals A General Synthesis Strategy for Hierarchical Porous Metal Oxide Hollow Spheres

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Huadong Fu ◽  
Feng Ren ◽  
Weiming Su ◽  
Jinlin Yang ◽  
Ruiping Liu
Keyword(s):  
Metal Oxide ◽  
Hollow Spheres ◽  
Porous Metal ◽  
Spherical Shape ◽  
Tetrabutyl Titanate ◽  
Carbon Spheres ◽  
Hydrothermal Conditions ◽  
Synthesis Strategy ◽  
Hierarchical Porous ◽  
General Synthesis

The hierarchical porous TiO2hollow spheres were successfully prepared by using the hydrothermally synthesized colloidal carbon spheres as templates and tetrabutyl titanate as inorganic precursors. The diameter and wall thickness of hollow TiO2spheres were determined by the hard templates and concentration of tetrabutyl titanate. The particle size, dispersity, homogeneity, and surface state of the carbon spheres can be easily controlled by adjusting the hydrothermal conditions and adding certain amount of the surfactants. The prepared hollow spheres possessed the perfect spherical shape, monodispersity, and hierarchically pore structures, and the further experiment verified that the present approach can be used to prepare other metal oxide hollow spheres, which could be used as catalysis, fuel cells, lithium-air battery, gas sensor, and so on.

Facile fabrication of metal oxide hollow spheres using polydopamine nanoparticles as active templates

2015 ◽  
Vol 64 (8) ◽  
pp. 986-991 ◽  
Author(s):  
Heng Shen ◽  
Yuhua Long ◽  
Xiaoli Yang ◽  
Ning Zhao ◽  
Jian Xu
Keyword(s):  
Metal Oxide ◽  
Hollow Spheres ◽  
Facile Fabrication

High-rate capability and long-term cycling of self-assembled hierarchical Fe3O4/carbon hollow spheres through interfacial control

2019 ◽  
Vol 7 (28) ◽  
pp. 16720-16727 ◽  
Author(s):  
Jing Huang ◽  
Songpu Cheng ◽  
Yuxi Chen ◽  
Zhanglong Chen ◽  
Hao Luo ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Hollow Spheres ◽  
Rate Capability ◽  
High Rate ◽  
High Rate Capability ◽  
Oxide Interfaces ◽  
Carbon Hollow Spheres ◽  
Self Assembled

Nowadays it remains a big challenge to achieve high-rate capability and long-term cycling of metal oxide anodes for secondary batteries, due to large volumetric variation-induced unstable electrolyte–metal oxide interfaces.

Controlled Synthesis of Self-Assembled Metal Oxide Hollow Spheres Via Tuning Redox Potentials: Versatile Nanostructured Cobalt Oxides

2008 ◽  
Vol 20 (6) ◽  
pp. 1205-1209 ◽  
Author(s):  
Chun-Hu Chen ◽  
Shams F. Abbas ◽  
Aimee Morey ◽  
Shanthakumar Sithambaram ◽  
Lin-Ping Xu ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Hollow Spheres ◽  
Cobalt Oxides ◽  
Controlled Synthesis ◽  
Redox Potentials ◽  
Self Assembled

Generalized synthesis and evaluation of formation mechanism of metal oxide/sulphide@C hollow spheres

2015 ◽  
Vol 3 (40) ◽  
pp. 20297-20304 ◽  
Author(s):  
Arka Saha ◽  
Pankaj Bharmoria ◽  
Aniruddha Mondal ◽  
Subhash C. Ghosh ◽  
Sourindra Mahanty ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Formation Mechanism ◽  
Hollow Spheres ◽  
Soft Template

A generalized novel sucrose–CTAB-based soft template approach for synthesizing metal oxide/sulphide hollow spheres and the corresponding formation mechanism are reported.

scholarly journals Production of Nimn2o4 Hollow Spheres and Cofe2o4 Bowl-Like Structures by Using Block Copolymer Stabilized Polystyrene Spheres as a Hard Template

2021 ◽  
Author(s):  
Gökhan Kocak ◽  
Vural Bütün
Keyword(s):  
Metal Oxide ◽  
Tertiary Amine ◽  
Diblock Copolymer ◽  
Hollow Spheres ◽  
Polystyrene Spheres ◽  
Hard Template ◽  
Sem Images ◽  
Nickel Manganese ◽  
Controlled Precipitation ◽  
Successful Production

Abstract The aim of this study is to highlight the use of polystyrene (PS) latexes stabilized with block copolymers as a hard template in the production of metal oxide hollow spheres. PS latexes produced by dispersion polymerization by stabilizing with tertiary amine methacrylate-based diblock copolymer were used as a hard template in the preparation of nickel manganese oxide (NiMn2O4) hollow spheres and iron cobalt oxide (CoFe2O4) bowl-like structures. Thanks to the diblock copolymer stabilizer with tertiary amine functional groups on the PS surface, precursor salts of CoFe2O4 and NiMn2O4 were first homogeneously deposited on the surface of PS latexes with a controlled precipitation technique. Then, metal oxide hollow spheres and bowl-like structures were produced by calcination. XRD results showed that CoFe2O4 and NiMn2O4 structures were successfully obtained after calcination. The thermogravimetric analysis results showed that the CoFe2O4 and NiMn2O4 contents of the hybrid PS spheres were in the range of 26.0-28.6 wt%. SEM images showed that the inorganic-polymer spheres fused with each other after calcination to form larger magnetic CoFe2O4 bowl-like structures. SEM images also indicated successful production of highly rough NiMn2O4 hollow spheres with nano-sheets on the surface.

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