Preparation of three-dimensional inverse opal SnO2/graphene composite microspheres and their enhanced photocatalytic activities

2015 ◽  
Vol 3 (6) ◽  
pp. 2991-2998 ◽  
Author(s):  
Lechen Chen ◽  
Lizhao Xie ◽  
Mozhen Wang ◽  
Xuewu Ge
Keyword(s):  
Colloidal Crystal ◽  
Three Dimensional ◽  
Inverse Opal ◽  
Graphene Composite ◽  
Composite Microspheres ◽  
Photocatalytic Activities

3D inverse opal SnO2/graphene composite microspheres with enhanced photocatalytic activities were first prepared using polystyrene colloidal crystal balls as a template.

scholarly journals Effects of Crystallinity on the Photocatalytic Polymerization of 3,4-Ethylenedioxythiophene over CsPbBr3 Inverse Opals

Catalysts ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1331
Author(s):  
Siwei Zhao ◽  
Shaohua Jin ◽  
Huanmin Liu ◽  
Shengfu Li ◽  
Kun Chen
Keyword(s):  
Colloidal Crystal ◽  
Three Dimensional ◽  
Inverse Opal ◽  
Porous Structures ◽  
Novel Approach ◽  
Transmission Electron ◽  
Hierarchical Porous ◽  
Antisolvent Crystallization ◽  
Colloidal Crystal Templating ◽  
High Absorption Coefficient

Due to their high absorption coefficient and long carrier lifetime, halide perovskites are promising candidates for photocatalysts. For this study, the antisolvent crystallization protocol and the colloidal crystal templating approach were combined to fabricate the highly crystalline cesium lead bromide perovskite with inverse opal morphology (IO-CsPbBr3). Scanning electron microscopy and transmission electron microscope images demonstrate the three-dimensional well-ordered porous structures of the IO-CsPbBr3 and their single-crystalline features. The presented approach not only provides hierarchical porous structures but also enhances overall crystallinity. When used as catalysts to promote the polymerization of 2,2′,5′,2″-ter-3,4-ethylenedioxythiophene, the highly crystalline IO-CsPbBr3 exhibits a superior photocatalytic performance compared to its polycrystalline counterpart. Furthermore, the morphology and the crystalline structure of the highly crystalline IO-CsPbBr3 are well preserved under photocatalytic conditions. This novel approach enables the preparation of a halide perovskite inverse opal with high crystallinity.

An electrochemically grown three-dimensional porous Si@Ni inverse opal structure for high-performance Li ion battery anodes

2014 ◽  
Vol 2 (18) ◽  
pp. 6396-6401 ◽  
Author(s):  
Do Youb Kim ◽  
Jungdon Suk ◽  
Dong Wook Kim ◽  
Yongku Kang ◽  
Sang Hyuk Im ◽  
...  
Keyword(s):  
High Performance ◽  
Colloidal Crystal ◽  
Three Dimensional ◽  
High Capacity ◽  
Inverse Opal ◽  
Li Ion Batteries ◽  
Li Ion Battery ◽  
Porous Si ◽  
Inverse Opal Structure ◽  
Li Ion

A Si@Ni inverse opal structure fabricated by using an inexpensive electrodeposition method and a colloidal crystal template exhibits high capacity, cyclability, and rate-performance as an anode for Li ion batteries.

Three-Dimensional Inverse Opal Photonic Crystal Substrates toward Efficient Capture of Circulating Tumor Cells

2017 ◽  
Vol 9 (36) ◽  
pp. 30510-30518 ◽  
Author(s):  
Hongwei Xu ◽  
Biao Dong ◽  
Qiaoqin Xiao ◽  
Xueke Sun ◽  
Xinran Zhang ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Tumor Cells ◽  
Circulating Tumor Cells ◽  
Three Dimensional ◽  
Inverse Opal

Li4Mn5O12 Lithium Ion Sieve Preparation and Adsorption Properties

2014 ◽  
Vol 1004-1005 ◽  
pp. 670-674 ◽  
Author(s):  
Dian Quan Dong ◽  
Hong Bo Dai ◽  
Jian Guo Zheng
Keyword(s):  
High Selectivity ◽  
Colloidal Crystal ◽  
Average Pore Size ◽  
Three Dimensional ◽  
Lithium Ion ◽  
Precursor Solution ◽  
Exchange Capacity ◽  
Average Pore ◽  
Exchange Performance ◽  
Roasting Condition

Polystyrene microspheres with 120nm diameter were synthesized by emulsion polymerization and three-dimensionally ordered colloidal crystal templates were obtained by centrifugal sedimentation.Three dimensionally ordered nanopore (3DON) manganese oxide lithium ion-sieve was prepared after filtration, two heated roasting and acid modified by using precursor solution filling the colloidal crystal templates, which was prepared by Lithium salt, manganese salt and citric acid. SEM, XRD, and saturated exchange capacity test were used to characterize the roasting condition, appearance, structure, and ion exchange performance of the oxide. The results showed that, the optimum roasting condition of preparing lithium ion-sieve precursors were found as follows: heating rate at 2°C/min, 300 °C roasting 4h and 800 °C roasting 8h, The 3DON Li4Mn5O12lithium ion sieve precursor has the shape of three-dimensional cross-linked connected into the network structure. Li4Mn5O12was regularly arranged and the hole wall was integrity,average pore size of approximately 90nm.3DON Li4Mn5O12 showed good stability for acid and the retrofit of lithium ion-sieve showed a high selectivity for Li+. The saturated exchange capacity of Li+is 51.98mgLi+/g.

Overcoming the supercooling of hydrated salts: three‐dimensional graphene composite PCMs

2018 ◽  
Vol 13 (6) ◽  
pp. 849-852 ◽  
Author(s):  
Ya Wang ◽  
Liu Cao ◽  
Dong Zhang
Keyword(s):  
Three Dimensional ◽  
Graphene Composite

EXCELLENT CYCLING PERFORMANCE OF THREE-DIMENSIONAL-ORDERED MACROPOROUS NiFe2O4 AS ANODE MATERIAL FOR LITHIUM ION BATTERIES

2011 ◽  
Vol 04 (04) ◽  
pp. 327-331 ◽  
Author(s):  
TIANJING ZHANG ◽  
HUJUN CAO ◽  
JUANJUAN PENG ◽  
QIZHEN XIAO ◽  
ZHAOHUI LI ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Material ◽  
Nickel Ferrite ◽  
Colloidal Crystal ◽  
Three Dimensional ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Cyclic Voltammogram ◽  
Electrochemical Characteristics ◽  
Ordered Macroporous

Three-dimensional ordered macroporous (3DOM) nickel ferrite ( NiFe2O4 ) anode material is synthesized via colloidal crystal template. A Close-packed poly(methyl methacrylate) (PMMA) spheres is used as template. Scanning electron microscopy observations reveal that the obtained 3DOM NiFe2O4 material has uniform spherical macropores with diameter about 140-nm and 20-nm size walls. The cyclic voltammogram and galvanostatic test are employed to evaluate the electrochemical characteristics of the as-prepared NiFe2O4 . It shows high initial discharge capacity (up to 1370 mAh g-1) and reversible capacity of 670 mAh g-1 at the current density of 0.2 mA cm-2. The results suggest that 3DOM nickel ferrite is a good candidate for anode material of lithium ion batteries.

Retracted Article: 3D printed highly flexible strain sensor based on TPU–graphene composite for feedback from high speed robotic applications

2019 ◽  
Vol 7 (16) ◽  
pp. 4692-4701 ◽  
Author(s):  
Jahan Zeb Gul ◽  
Memoon Sajid ◽  
Kyung Hyun Choi
Keyword(s):  
High Speed ◽  
Thermoplastic Polyurethane ◽  
Three Dimensional ◽  
Strain Sensor ◽  
Graphene Composite ◽  
Retracted Article ◽  
3D Printed ◽  
Resistive Type ◽  
Flexible Strain Sensor ◽  
Robotic Applications

A novel, highly flexible and electrically resistive-type strain sensor with a special three-dimensional conductive network was 3D printed using a composite of conductive graphene pellets and flexible thermoplastic polyurethane (TPU) pellets.

Three-Dimensional Graphene Composite Macroscopic Structures for Capture of Cancer Cells

2013 ◽  
Vol 1 (1) ◽  
pp. 1300043 ◽  
Author(s):  
Shengyan Yin ◽  
Yun-Long Wu ◽  
Benhui Hu ◽  
Yu Wang ◽  
Pingqiang Cai ◽  
...  
Keyword(s):  
Cancer Cells ◽  
Three Dimensional ◽  
Graphene Composite
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