Facile Synthesis of Nb2O5@Carbon Core–Shell Nanocrystals with Controlled Crystalline Structure for High-Power Anodes in Hybrid Supercapacitors
Source abstract
Abstract
Hybrid supercapacitors (battery-supercapacitor hybrid devices, HSCs) deliver high energy within seconds (excellent rate capability) with stable cyclability. One of the key limitations in developing high-performance HSCs is imbalance in power capability between the sluggish Faradaic lithium-intercalation anode and rapid non-Faradaic capacitive cathode. To solve this problem, we synthesize Nb2O5@carbon core-shell nanocyrstals (Nb2O5@C NCs) as high-power anode materials with controlled crystalline phases (orthorhombic (T) and pseudohexagonal (TT)) via a facile one-pot synthesis method based on a water-in-oil microemulsion system. The synthesis of ideal T-Nb2O5 for fast Li(+) diffusion is simply achieved by controlling the microemulsion parameter (e.g., pH control). The T-Nb2O5@C NCs shows a reversible specific capacity of ∼180 mA h g(-1) at 0.05 A g(-1) (1.1-3.0 V vs Li/Li(+)) with rapid rate capability compared to that of TT-Nb2O5@C and carbon shell-free Nb2O5 NCs, mainly due to synergistic effects of (i) the structural merit of T-Nb2O5 and (ii) the conductive carbon shell for high electron mobility. The highest energy (∼63 W h kg(-1)) and power (16 528 W kg(-1) achieved at ∼5 W h kg(-1)) densities within the voltage range of 1.0-3.5 V of the HSC using T-Nb2O5@C anode and MSP-20 cathode are remarkable.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advancements in Battery Materials · Supercapacitor Materials and Fabrication · Catalytic Processes in Materials Science
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Kyungbuk 790-784, Republic of Korea
Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Kyungbuk 790-784, Republic of Korea
Department of Materials Science and Engineering, Research Institute of Advanced Materials (RIAM), Seoul National University, 599 Gwanak-Ro, Gwanak-Gu, Seoul 151-742, Republic of Korea
Energy and Environmental Division, Korea Institute of Ceramic Engineering and Technology (KICET), 101 Soho-Ro, Jinju, Gyeongnam 660-031, Republic of Korea
Department of Chemical and Biomolecular Engineering, Sogang University, 35 Baekbeom-Ro, Mapo-Gu, Seoul 121-742, Republic of Korea
Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul National University, Seoul 151-742, Republic of Korea
Department of Integrative Engineering, Chung-Ang University, 221, Heukseok-Dong, Dongjak-Gu, Seoul 156-756, Republic of Korea
Funding
National Research Foundation of Korea
References (62)
Show source-provided references
1. Simon P. · Science · 2014 · 343 · 121010.1126/science.1249625 ↗
2. Kang K. · Science · 2006 · 311 · 97710.1126/science.1122152 ↗
3. Yuan F.-W. · ACS Nano · 2012 · 6 · 993210.1021/nn303519g ↗
4. Pol V. G. · J. Power Sources · 2010 · 195 · 503910.1016/j.jpowsour.2010.02.072 ↗
5. Poizot P. · Nature · 2000 · 407 · 49610.1038/35035045 ↗
6. Wang J. · J. Phys. Chem. C · 2007 · 111 · 1492510.1021/jp074464w ↗
7. Chmiola J. · Science · 2010 · 328 · 48010.1126/science.1184126 ↗
8. Pech D. · Nat. Nanotechnol. · 2010 · 5 · 65110.1038/nnano.2010.162 ↗
9. Yoon S. · J. Electrochem. Soc. · 2000 · 147 · 250710.1149/1.1393561 ↗
10. Liu J. · Energy Environ. Sci. · 2014 · 7 · 370910.1039/C4EE01475H ↗
11. Mun Y. · Carbon · 2013 · 64 · 39110.1016/j.carbon.2013.07.092 ↗
12. Jo C. · Phys. Chem. Chem. Phys. · 2012 · 14 · 569510.1039/c2cp40657h ↗
13. Naoi K. · Acc. Chem. Res. · 2012 · 46 · 107510.1021/ar200308h ↗
14. Naoi K. · Energy Environ. Sci. · 2012 · 5 · 936310.1039/c2ee21675b ↗
15. Lee J. H. · Mater. Renew. Sustain. Energy · 2014 · 3 · 1
16. Shen L. · Nat. Commun. · 2015 · 6 · 669410.1038/ncomms7694 ↗
17. Peng S. · Adv. Energy Mater. · 2014 · 5 · 140117210.1002/aenm.201401172 ↗
18. Wang Q. · Adv. Funct. Mater. · 2006 · 16 · 214110.1002/adfm.200500937 ↗
19. Jung H.-G. · J. Power Sources · 2013 · 221 · 26610.1016/j.jpowsour.2012.08.039 ↗
20. Kim H. · Adv. Energy Mater. · 2013 · 3 · 150010.1002/aenm.201300467 ↗
21. Kim H. · ChemElectroChem. · 2014 · 1 · 12510.1002/celc.201300186 ↗
22. Wang Y. · Adv. Funct. Mater. · 2012 · 22 · 518510.1002/adfm.201200766 ↗
23. Aravindan V. · ChemSusChem · 2014 · 7 · 185810.1002/cssc.201400157 ↗
24. Yi R. · Adv. Funct. Mater. · 2014 · 24 · 743310.1002/adfm.201402398 ↗
25. Lim E. · ACS Nano · 2014 · 8 · 896810.1021/nn501972w ↗
26. Brezesinski T. · J. Am. Chem. Soc. · 2009 · 131 · 180210.1021/ja8057309 ↗
27. Lee S. H. · Nano Lett. · 2013 · 13 · 424910.1021/nl401952h ↗
28. Oh M. H. · Science · 2013 · 340 · 96410.1126/science.1234751 ↗
29. Ha D.-H. · Nano Lett. · 2012 · 12 · 512210.1021/nl3019559 ↗
30. Kim G. · Energy Environ. Sci. · 2013 · 6 · 293210.1039/c3ee41880d ↗
31. Yu L. · Adv. Mater. · 2013 · 25 · 229610.1002/adma.201204912 ↗
32. Kang E. · Adv. Funct. Mater. · 2011 · 21 · 434910.1002/adfm.201101123 ↗
33. Lee J. · Macromol. Chem. Phys. · 2011 · 212 · 38310.1002/macp.201000687 ↗
34. Augustyn V. · Nat. Mater. · 2013 · 12 · 51810.1038/nmat3601 ↗
35. Decaux C. · Electrochim. Acta · 2012 · 86 · 28210.1016/j.electacta.2012.05.111 ↗
36. Park M. S. · ChemSusChem · 2014 · 7 · 313810.1002/cssc.201402397 ↗
37. Come J. · J. Electrochem. Soc. · 2014 · 161 · A71810.1149/2.040405jes ↗
38. Kim J. W. · Adv. Energy Mater. · 2012 · 2 · 14110.1002/aenm.201100494 ↗
39. Kobayashi Y. · Nano Lett. · 2007 · 7 · 214210.1021/nl0708260 ↗
40. Kodama R. · J. Electrochem. Soc. · 2006 · 153 · A58310.1149/1.2163788 ↗
41. Lubimtsev A. A. · J. Mater. Chem. A · 2013 · 1 · 1495110.1039/c3ta13316h ↗
42. Zhang C. J. · J. Power Sources · 2015 · 274 · 12110.1016/j.jpowsour.2014.10.018 ↗
43. Zeng P. · Mater. Sci. Eng., A · 1998 · 252 · 30110.1016/S0921-5093(98)00665-0 ↗
44. Lee J. · Nat. Mater. · 2008 · 7 · 22210.1038/nmat2111 ↗
45. Wang X. · Adv. Energy Mater. · 2011 · 1 · 108910.1002/aenm.201100332 ↗
46. Wang X. · Nano Energy · 2015 · 11 · 76510.1016/j.nanoen.2014.11.020 ↗
47. Oh M. H. · J. Am. Chem. Soc. · 2011 · 133 · 550810.1021/ja200120k ↗
48. Ikeya T. · J. Non. Cryst. Solids · 1988 · 105 · 24310.1016/0022-3093(88)90313-4 ↗
49. Ko E. · Catal. Today · 1990 · 8 · 2710.1016/0920-5861(90)87005-N ↗
50. Rani R. A. · J. Mater. Chem. A · 2014 · 2 · 1568310.1039/C4TA02561J ↗
51. Zhao Y. · Nano Rev. · 2012 · 3 · 110.3402/nano.v3i0.17631 ↗
52. Soler-Illia G. J. d. A. · Chem. Rev. · 2002 · 102 · 409310.1021/cr0200062 ↗
53. Brinker C. J. · 1990
54. Aegerter M. A. · Sol. Energy Mater. Sol. Cells · 2001 · 68 · 40110.1016/S0927-0248(00)00372-X ↗
55. Borgel V. · J. Electrochem. Soc. · 2013 · 160 · A65010.1149/2.067304jes ↗
56. Barrett E. P. · J. Am. Chem. Soc. · 1951 · 73 · 37310.1021/ja01145a126 ↗
57. Kumagai N. · J. Electrochem. Soc. · 1999 · 146 · 320310.1149/1.1392455 ↗
58. Kim H. · Adv. Funct. Mater. · 2015 · 25 · 65210.1002/adfm.201570029 ↗
59. Dsoke S. · J. Power Sources · 2015 · 282 · 38510.1016/j.jpowsour.2015.02.079 ↗
60. Chen Z. · Adv. Mater. · 2011 · 23 · 79110.1002/adma.201003658 ↗
61. Aravindan V. · Phys. Chem. Chem. Phys. · 2012 · 14 · 580810.1039/c2cp40603a ↗
62. Zhang F. · Energy Environ. Sci. · 2013 · 6 · 162310.1039/c3ee40509e ↗