A highly efficient cathode catalyst γ-MnO_2@CNT composite for sodium-air batteries
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摘要
The γ-MnO_2@CNT catalyst was prepared by in situ solid phase synthesis and first applied into sodium-air batteries(SABs). The initial discharge specific capacity of SABs with γ-MnO_2@CNT catalyst can reach 8804 mA h g~(-1) and the overpotential gap is only 140 m V, which is better than the batteries that is catalyzed by α-MnO_2@CNT and pure CNT. Besides, the batteries also exhibit excellent cycle performance, which can keep relatively stable for 246 cycles at 500 mA g~(-1) and 140 cycles at1000 mA g~(-1).
The γ-MnO_2@CNT catalyst was prepared by in situ solid phase synthesis and first applied into sodium-air batteries(SABs). The initial discharge specific capacity of SABs with γ-MnO_2@CNT catalyst can reach 8804 mA h g~(-1) and the overpotential gap is only 140 m V, which is better than the batteries that is catalyzed by α-MnO_2@CNT and pure CNT. Besides, the batteries also exhibit excellent cycle performance, which can keep relatively stable for 246 cycles at 500 mA g~(-1) and 140 cycles at1000 mA g~(-1).
The γ-MnO_2@CNT catalyst was prepared by in situ solid phase synthesis and first applied into sodium-air batteries(SABs). The initial discharge specific capacity of SABs with γ-MnO_2@CNT catalyst can reach 8804 mA h g~(-1) and the overpotential gap is only 140 m V, which is better than the batteries that is catalyzed by α-MnO_2@CNT and pure CNT. Besides, the batteries also exhibit excellent cycle performance, which can keep relatively stable for 246 cycles at 500 mA g~(-1) and 140 cycles at1000 mA g~(-1).
引文
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2 Wang ZL,Xu D,Xu JJ,Zhang XB.Chem Soc Rev,2014,43:7746-7786
3 Zhao Z,Huang J,Peng Z.Angew Chem Int Ed,2018,57:3874-3886
4 Ren W,Zhu Z,An Q,Mai L.Small,2017,13:1604181-1604193
5 Fang C,Huang Y,Zhang W,Han J,Deng Z,Cao Y,Yang H.Adv Energy Mater,2016,6:1501727
6 Das SK,Lau S,Archer LA.J Mater Chem A,2014,2:12623-12629
7 Song K,Agyeman DA,Park M,Yang J,Kang YM.Adv Mater,2017,29:06572
8 Yadegari H,Sun Q,Sun X.Adv Mater,2016,28:7065-7093
9 Landa-Medrano I,Li C,Ortiz-Vitoriano N,Ruiz de Larramendi I,Carrasco J,Rojo T.J Phys Chem Lett,2016,7:1161-1166
10 Yang H,Sun J,Wang H,Liang J,Li H.Chem Commun,2018,54:4057-4060
11 Xia C,Black R,Fernandes R,Adams B,Nazar LF.Nat Chem,2015,7:496-501
12 Yadegari H,Norouzi Banis M,Lushington A,Sun Q,Li R,Sham TK,Sun X.Energy Environ Sci,2017,10:286-295
13 Zhao Q,Yan Z,Chen C,Chen J.Chem Rev,2017,117:10121-10211
14 Li F,Chen J.Adv Energy Mater,2017,7:1602934
15 Hu X,Cheng F,Zhang N,Han X,Chen J.Small,2015,11:5545-5550
16 Hu X,Han X,Hu Y,Cheng F,Chen J.Nanoscale,2014,6:3522-3525
17 Zhang K,Han X,Hu Z,Zhang X,Tao Z,Chen J.Chem Soc Rev,2015,44:699-728
18 Zhang T,Cheng F,Du J,Hu Y,Chen J.Adv Energy Mater,2015,5:1400654
19 Liu J,Ma Y,Roberts M,Gustafsson T,Edstr?m K,Zhu J.J Power Sources,2017,352:208-215
20 Liu S,Zhu Y,Xie J,Huo Y,Yang HY,Zhu T,Cao G,Zhao X,Zhang S.Adv Energy Mater,2014,4:1301960
21 Hu X,Sun J,Li Z,Zhao Q,Chen C,Chen J.Angew Chem Int Ed,2016,55:6482-6486
22 Huang JK,Li M,Wan Y,Dey S,Ostwal M,Zhang D,Yang CW,Su CJ,Jeng US,Ming J,Amassian A,Lai Z,Han Y,Li S,Li LJ.ACSNano,2018,12:836-843
23 Yan J,Fan Z,Wei T,Cheng J,Shao B,Wang K,Song L,Zhang M.JPower Sources,2009,194:1202-1207
24 Liu T,Liu Z,Kim G,Frith JT,Garcia-Araez N,Grey CP.Angew Chem Int Ed,2017,56:16057-16062
25 Hartmann P,Bender CL,Vra?ar M,Dürr AK,Garsuch A,Janek J,Adelhelm P.Nat Mater,2013,12:228-232
26 Xia C,Fernandes R,Cho FH,Sudhakar N,Buonacorsi B,Walker S,Xu M,Baugh J,Nazar LF.J Am Chem Soc,2016,138:11219-11226
27 Frith JT,Landa-Medrano I,Ruiz de Larramendi I,Rojo T,Owen JR,Garcia-Araez N.Chem Commun,2017,53:12008-12011