Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 5, Issue 14, Pages 6581-6588Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7ta00455a
Keywords
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Funding
- National Natural Science Foundation of China [61435010, 61675135]
- Science and Technology Innovation Commission of Shenzhen [JCYJ20150625103619275]
- Provincial Natural Science Foundation of Hunan [2016JJ2132]
- Open Fund based on innovation platform of Hunan Colleges and Universities [15K128]
- Program for Changjiang Scholars and Innovative Research Team in University [IRT13093]
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A single elemental hybrid composed of black phosphorus (BP) and red phosphorus (RP) is synthesized via a feasible sonochemical method. BP and RP can construct a new single elemental heterostructure. This kind of structure with an excellent interfacial contact between BP and RP would be beneficial to electron transfer and exhibits a superior electrochemical performance. Compared with the sole RP, the as-prepared BP/RP hybrid exhibits enhanced electrochemical performances as an electrode material for both lithium-ion batteries and supercapacitors. For lithium-ion battery applications, the BP/RP hybrid provides a high cycling performance with an initial discharge capacity of 2449 mA h g(-1) and a reversible capacity of 491 mA h g(-1) after 100 cycles. For supercapacitor applications, the specific capacitance of the BP/RP hybrid achieves a high value up to about 60.1 F g(-1) and a long cycling life with a capacity retention of 83.3% after 2000 cycles. The present study demonstrates that the BP/RP hybrid has potential for application as an electrode with high performances in electrochemical energy-storage devices.
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