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Choi S, Kim J, Hwang DY, et al. Generalized Redox-Responsive Assembly of Carbon-Sheathed Metallic and Semiconducting Nanowire Heterostructures. Nano Lett. 2016;16(2):1179-85doi: 10.1021/acs.nanolett.5b04476.
Choi, S., Kim, J., Hwang, D. Y., Park, H., Ryu, J., Kwak, S. K., & Park, S. (2016). Generalized Redox-Responsive Assembly of Carbon-Sheathed Metallic and Semiconducting Nanowire Heterostructures. Nano letters, 16(2), 1179-85. https://doi.org/10.1021/acs.nanolett.5b04476
Choi, Sinho, et al. "Generalized Redox-Responsive Assembly of Carbon-Sheathed Metallic and Semiconducting Nanowire Heterostructures." Nano letters vol. 16,2 (2016): 1179-85. doi: https://doi.org/10.1021/acs.nanolett.5b04476
Choi S, Kim J, Hwang DY, Park H, Ryu J, Kwak SK, Park S. Generalized Redox-Responsive Assembly of Carbon-Sheathed Metallic and Semiconducting Nanowire Heterostructures. Nano Lett. 2016 Feb 10;16(2):1179-85. doi: 10.1021/acs.nanolett.5b04476. Epub 2016 Jan 21. PMID: 26784743.
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Nano Lett. 2016 Feb 10;16(2):1179-85. doi: 10.1021/acs.nanolett.5b04476. Epub 2016 Jan 21.

Generalized Redox-Responsive Assembly of Carbon-Sheathed Metallic and Semiconducting Nanowire Heterostructures.

Nano letters

Sinho Choi, Jieun Kim, Dae Yeon Hwang, Hyungmin Park, Jaegeon Ryu, Sang Kyu Kwak, Soojin Park

Affiliations

  1. Department of Energy Engineering, School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST) , UNIST-gil 50, Ulsan 44919, Republic of Korea.

PMID: 26784743 DOI: 10.1021/acs.nanolett.5b04476

Abstract

One-dimensional metallic/semiconducting materials have demonstrated as building blocks for various potential applications. Here, we report on a unique synthesis technique for redox-responsive assembled carbon-sheathed metal/semiconducting nanowire heterostructures that does not require a metal catalyst. In our approach, germanium nanowires are grown by the reduction of germanium oxide particles and subsequent self-catalytic growth during the thermal decomposition of natural gas, and simultaneously, carbon sheath layers are uniformly coated on the nanowire surface. This process is a simple, reproducible, size-controllable, and cost-effective process whereby most metal oxides can be transformed into metallic/semiconducting nanowires. Furthermore, the germanium nanowires exhibit stable chemical/thermal stability and outstanding electrochemical performance including a capacity retention of ∼96% after 1200 cycles at the 0.5-1C rate as lithium-ion battery anode.

Keywords: Metallic/semiconducting nanowire; carbon-sheathed coaxial nanowire; energy storage devices; redox-responsive assembly

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