One-Dimensional Porous Silicon Nanowires with Large Surface Area for Fast Charge–Discharge Lithium-Ion Batteries
In this study, one-dimensional porous silicon nanowire (1D–PSiNW) arrays were fabricated by one-step metal-assisted chemical etching (MACE) to etch phosphorus-doped silicon wafers. The as-prepared mesoporous 1D–PSiNW arrays here had especially high specific surface areas of 323.47 m2·g−1 and were ap...
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MDPI AG
2018-04-01
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| Series: | Nanomaterials |
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| Online Access: | http://www.mdpi.com/2079-4991/8/5/285 |
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doaj-fee772aa032b41c0ba1596861d5d891b2020-11-25T00:36:25ZengMDPI AGNanomaterials2079-49912018-04-018528510.3390/nano8050285nano8050285One-Dimensional Porous Silicon Nanowires with Large Surface Area for Fast Charge–Discharge Lithium-Ion BatteriesXu Chen0Qinsong Bi1Muhammad Sajjad2Xu Wang3Yang Ren4Xiaowei Zhou5Wen Xu6Zhu Liu7Department of Physics and Astronomy, Yunnan University, Kunming 650091, Yunnan, ChinaDepartment of Physics and Astronomy, Yunnan University, Kunming 650091, Yunnan, ChinaDepartment of Physics and Astronomy, Yunnan University, Kunming 650091, Yunnan, ChinaMaterials Science and Engineering Program, University of Houston, Houston, TX 77204, USADepartment of Physics and Astronomy, Yunnan University, Kunming 650091, Yunnan, ChinaDepartment of Physics and Astronomy, Yunnan University, Kunming 650091, Yunnan, ChinaDepartment of Physics and Astronomy, Yunnan University, Kunming 650091, Yunnan, ChinaDepartment of Physics and Astronomy, Yunnan University, Kunming 650091, Yunnan, ChinaIn this study, one-dimensional porous silicon nanowire (1D–PSiNW) arrays were fabricated by one-step metal-assisted chemical etching (MACE) to etch phosphorus-doped silicon wafers. The as-prepared mesoporous 1D–PSiNW arrays here had especially high specific surface areas of 323.47 m2·g−1 and were applied as anodes to achieve fast charge–discharge performance for lithium ion batteries (LIBs). The 1D–PSiNWs anodes with feature size of ~7 nm exhibited reversible specific capacity of 2061.1 mAh·g−1 after 1000 cycles at a high current density of 1.5 A·g−1. Moreover, under the ultrafast charge–discharge current rate of 16.0 A·g−1, the 1D–PSiNWs anodes still maintained 586.7 mAh·g−1 capacity even after 5000 cycles. This nanoporous 1D–PSiNW with high surface area is a potential anode candidate for the ultrafast charge–discharge in LIBs with high specific capacity and superior cycling performance.http://www.mdpi.com/2079-4991/8/5/285mesoporous structurehigh surface areasultrafastlong-cycling life |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Xu Chen Qinsong Bi Muhammad Sajjad Xu Wang Yang Ren Xiaowei Zhou Wen Xu Zhu Liu |
| spellingShingle |
Xu Chen Qinsong Bi Muhammad Sajjad Xu Wang Yang Ren Xiaowei Zhou Wen Xu Zhu Liu One-Dimensional Porous Silicon Nanowires with Large Surface Area for Fast Charge–Discharge Lithium-Ion Batteries Nanomaterials mesoporous structure high surface areas ultrafast long-cycling life |
| author_facet |
Xu Chen Qinsong Bi Muhammad Sajjad Xu Wang Yang Ren Xiaowei Zhou Wen Xu Zhu Liu |
| author_sort |
Xu Chen |
| title |
One-Dimensional Porous Silicon Nanowires with Large Surface Area for Fast Charge–Discharge Lithium-Ion Batteries |
| title_short |
One-Dimensional Porous Silicon Nanowires with Large Surface Area for Fast Charge–Discharge Lithium-Ion Batteries |
| title_full |
One-Dimensional Porous Silicon Nanowires with Large Surface Area for Fast Charge–Discharge Lithium-Ion Batteries |
| title_fullStr |
One-Dimensional Porous Silicon Nanowires with Large Surface Area for Fast Charge–Discharge Lithium-Ion Batteries |
| title_full_unstemmed |
One-Dimensional Porous Silicon Nanowires with Large Surface Area for Fast Charge–Discharge Lithium-Ion Batteries |
| title_sort |
one-dimensional porous silicon nanowires with large surface area for fast charge–discharge lithium-ion batteries |
| publisher |
MDPI AG |
| series |
Nanomaterials |
| issn |
2079-4991 |
| publishDate |
2018-04-01 |
| description |
In this study, one-dimensional porous silicon nanowire (1D–PSiNW) arrays were fabricated by one-step metal-assisted chemical etching (MACE) to etch phosphorus-doped silicon wafers. The as-prepared mesoporous 1D–PSiNW arrays here had especially high specific surface areas of 323.47 m2·g−1 and were applied as anodes to achieve fast charge–discharge performance for lithium ion batteries (LIBs). The 1D–PSiNWs anodes with feature size of ~7 nm exhibited reversible specific capacity of 2061.1 mAh·g−1 after 1000 cycles at a high current density of 1.5 A·g−1. Moreover, under the ultrafast charge–discharge current rate of 16.0 A·g−1, the 1D–PSiNWs anodes still maintained 586.7 mAh·g−1 capacity even after 5000 cycles. This nanoporous 1D–PSiNW with high surface area is a potential anode candidate for the ultrafast charge–discharge in LIBs with high specific capacity and superior cycling performance. |
| topic |
mesoporous structure high surface areas ultrafast long-cycling life |
| url |
http://www.mdpi.com/2079-4991/8/5/285 |
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