Particle & Particle Systems Characterization
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Best of Particle - Enjoy Free Access
The Best of Particle compiles a selection of recently published interesting articles dealing with the synthesis, characterization, and application of particles in a variety of systems and devices.
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Recently Published Articles
- Graphene Nanosheets Suppress the Growth of Sb Nanoparticles in an Sb/C Nanocomposite to Achieve Fast Na Storage
Hong-Yan Lü, Fang Wan, Li-Hua Jiang, Guang Wang and Xing-Long Wu
Article first published online: 9 FEB 2016 | DOI: 10.1002/ppsc.201500248
The strategy of dual-carbon incorporation is very effective to enhance the Na-storage properties of an Sb anode. Excitingly, it is found that an incorporated graphene nanosheet in the preparation processes can not only completely protect all of the Sb nanoparticles in the Sb/C composite from being inactivated, but also suppresses their growth to undesirable micrometer size.
- Highly Active and Durable PdAg@Pd Core–Shell Nanoparticles as Fuel-Cell Electrocatalysts for the Oxygen Reduction Reaction
Yizhong Lu, Yuanyuan Jiang, Xiaohui Gao, Xiaodan Wang and Wei Chen
Article first published online: 8 FEB 2016 | DOI: 10.1002/ppsc.201500234
A well-defined carbon-supported core–shell structure consisting of PdAg alloy core and a shell of a few atomic Pd layers (PdAg@Pd/C) is obtained by a simple electrochemical process. Due to the synergistic effect between the Pd and the Ag and their unique core–shell structure, the PdAg@Pd/C hybrids exhibit enhanced electrocatalytic activity and durability toward the oxygen reduction reaction in alkaline medium.
- Growth of Ru-Modified Co3O4 Nanosheets on Carbon Textiles toward Flexible and Efficient Cathodes for Flexible Li–O2 Batteries
Qing-chao Liu, Ji-jing Xu, Zhi-wen Chang, Dan Xu, Yan-bin Yin, Xiao-yang Yang, Tong Liu, Yin-shan Jiang, Jun-min Yan and Xin-bo Zhang
Article first published online: 4 FEB 2016 | DOI: 10.1002/ppsc.201500193
A flexible and highly efficient air cathode is fabricated via a simple electro-deposition approach. This cathode exhibits a series of considerable electrochemical performances, in particular a good cycling performance (more than 70 cycles with the capacity limited 1000 mA h g−1). Based on this flexible cathode, a Li–O2 battery with flexible properties is also assembled, which can power a commercial LED normally.
- Dextran-Coated Antiferromagnetic MnO Nanoparticles for a T1-MRI Contrast Agent with High Colloidal Stability
Herbert R. Neves, Rafael A. Bini, Jeam H. O. Barbosa, Carlos E. G. Salmon and Laudemir C. Varanda
Article first published online: 3 FEB 2016 | DOI: 10.1002/ppsc.201500251
The synthesis and characterization of biocompatible MnO nanoparticles coated with carboxymethyl dextran are presented; these nanoparticles show high colloidal stability in both pure water and physiological saline solution. The coated-nanoparticle system reveals no toxicity for healthy human cells, antiferromagnetic behavior, significant r1 relaxivity, and low r2/r1 relaxivity ratio, and is thus suitable for applications as T1-weighted contrast agents for magnetic resonance imaging (MRI).
- Design of Enhanced Catalysts by Coupling of Noble Metals (Au,Ag) with Semiconductor SnO2 for Catalytic Reduction of 4-Nitrophenol
Mei Lei, Wei Wu, Shuanglei Yang, Xingang Zhang, Zhuo Xing, Feng Ren, Xiangheng Xiao and Changzhong Jiang
Article first published online: 2 FEB 2016 | DOI: 10.1002/ppsc.201500128
Noble-metal (Au and Ag)-coated Au@SnO2 yolk–shell ternary and binary nanoparticles are prepared and their catalytic performance for the reduction of 4-nitrophenol into 4-aminophenol by NaBH4 is elaborated. The ternary structures have a much higher catalytic activity than the binary heterostructures, and possible mechanisms behind this difference are investigated.