Sr-doped Lanthanum Nickelate Nanofibers for High Energy Density Supercapacitors

Cao, Yi; Lin, Baoping; Sun, Ying; Yang, Hong; Zhang, Xueqin

doi:10.1016/j.electacta.2015.05.131

Cited by 123 publications

(50 citation statements)

References 56 publications

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“…[18][19][20] Several approaches have been exploredb yr esearchers in this regard. Generating oxygen vacancies within perovskite oxides plays as ignificant role in improving the conductivity,s tability, as well the charges torage performance of material.…”

Section: Introductionmentioning

confidence: 99%

“…Generating oxygen vacancies within perovskite oxides plays as ignificant role in improving the conductivity,s tability, as well the charges torage performance of material. [19] An essential criterion of such intercalated/de-intercalated phenomenono bservedi n perovskite oxidesi st he phase transition, which should not take place during the prevailing electrochemical reaction in supercapacitors as found in Li-ion based battery materials. For instance, Mefford et al described ac harge storage mechanism in LaMnO 3 perovskite throughi ntercalation of oxygen ions into its surface/bulk as ar esult of the presence of inherento xygen vacanciesi nt he matrix.…”

Section: Introductionmentioning

confidence: 99%

“…Generating oxygen vacancies within perovskite oxides plays as ignificant role in improving the conductivity,s tability, as well the charges torage performance of material. [18][19][20] Several approaches have been exploredb yr esearchers in this regard. For instance, Mefford et al described ac harge storage mechanism in LaMnO 3 perovskite throughi ntercalation of oxygen ions into its surface/bulk as ar esult of the presence of inherento xygen vacanciesi nt he matrix.…”

Section: Introductionmentioning

confidence: 99%

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Fabrication of a Mo‐Doped Strontium Cobaltite Perovskite Hybrid Supercapacitor Cell with High Energy Density and Excellent Cycling Life

2018

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Enriched with oxygen vacancies, Mo-doped strontium cobaltite (SrCo Mo O , SCM) is synthesized as an oxygen anion-intercalated charge-storage material through the sol-gel method. The supplemented oxygen vacancies, good electrical conductivity, and high ion diffusion coefficient bestow the SCM electrode with excellent specific capacitance (1223.34 F g ) and specific capacity (168.88 mAh g ) at 1 A g . The decisive constant (b-value) deduced for the charge storage mechanism (low scan-rate region) is nearly 0.8, indicating a highly capacitive process. In the high scan-rate region, however, the b-value is almost 0.5, and a linear pattern of charge (q) versus the inverse of the square root of the scan rate (v ) is obtained. The results reveal O diffusion as the rate-limiting factor for charge storage. Furthermore, a hybrid cell (SCM∥LRGONR) is fabricated by using lacey, reduced graphene oxide nanoribbon (LRGONR) as the negative electrode, which exhibits a high energy density (74.8 Wh kg at a power density of 734.5 W kg ). With a charging time of only 20.7 s, the cell sustains a very high energy density (33 Wh kg ) with a high power delivery rate (6600 W kg ). The excellent cycling stability (165.1 % activated specific capacitance retention and 97.6 % of the maximum value attained) after 10 000 charge-discharge cycles, demonstrates SCM is a potential electrode material for supercapacitors.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Generating oxygen vacancies within perovskite oxides plays as ignificant role in improving the conductivity,s tability, as well the charges torage performance of material. [18][19][20] Several approaches have been exploredb yr esearchers in this regard. For instance, Mefford et al described ac harge storage mechanism in LaMnO 3 perovskite throughi ntercalation of oxygen ions into its surface/bulk as ar esult of the presence of inherento xygen vacanciesi nt he matrix.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Fabrication of a Mo‐Doped Strontium Cobaltite Perovskite Hybrid Supercapacitor Cell with High Energy Density and Excellent Cycling Life

2018

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“…Electrospun 1D porous bimetallic ZnCo 2 O 4 NTs showed a much higher specific capacitance of 770 F/g at 10 A/g and good cycling stability of only a 10.5% loss after 3000 cycles [242]. Lin et al [243,244,245] reported La x Sr 1 − x Cu 0.1 Mn 0.9 O 3 − δ (0.1 ≤ x ≤ 1) NFs, La x Sr 1 − x CoO 3 − δ (0.3 ≤ x ≤ 1) NFs and La x Sr 1 − x NiO 3 − δ (0.3 ≤ x ≤ 1) NFs, which exhibited excellent electrochemical performance. The supercapacitors with La x Sr 1 − x CoO 3 − δ (0.3 ≤ x ≤ 1) NFs as the electrode exhibit the highest specific capacity of 747.75 F/g at a current density of 2 A/g.…”

Section: Applicationsmentioning

confidence: 99%

Electrospinning of Nanofibers for Energy Applications

et al. 2016

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With global concerns about the shortage of fossil fuels and environmental issues, the development of efficient and clean energy storage devices has been drastically accelerated. Nanofibers are used widely for energy storage devices due to their high surface areas and porosities. Electrospinning is a versatile and efficient fabrication method for nanofibers. In this review, we mainly focus on the application of electrospun nanofibers on energy storage, such as lithium batteries, fuel cells, dye-sensitized solar cells and supercapacitors. The structure and properties of nanofibers are also summarized systematically. The special morphology of nanofibers prepared by electrospinning is significant to the functional materials for energy storage.

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“…have been reported as potentiale lectrode materials for supercapacitors. [6][7][8][9][10][11][12][13][14][15] Most of the reported perovskite oxide candidates, however,s till show the inferiors pecific capacitance/capacity,l ower rate behavior, or unsatisfying cyclings tability, limiting their further applications. [16] Therefore, it is of great significance to explore new perovskite candidates with superior electrochemical performance for supercapacitors.…”

mentioning

confidence: 99%

Bimetallic Co‐Mn Perovskite Fluorides as Highly‐Stable Electrode Materials for Supercapacitors

Shi

Ding

et al. 2017

Chemistry A European J

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Bimetallic Co-Mn perovskite fluorides (KCo Mn F , denoted as K-Co-Mn-F) with various Co/Mn ratios (1:0, 12:1, 6:1, 3:1, 1:1, 1:3, 0:1) were prepared through a one-pot solvothermal strategy and further used as electrode materials for supercapacitors. The optimal K-Co-Mn-F candidate (Co/Mn=6:1) showed a size range of 0.1-1 μm and uniform elemental distribution; exhibiting small changes in XRD peaks and XPS binding energy in comparison to the bare K-Co-F and K-Mn-F, due to the structural/electronic effects. Owing to the stronger synergistic effect of Co/Mn redox species, the K-Co-Mn-F (Co/Mn=6:1) electrode exhibited superior specific capacity and rate behavior (113-100 C g at 1-16 Ag ) together with excellent cycling stability (118 % for 5000 cycles at 8 Ag ), and the activated carbon (AC)//K-Co-Mn-F (Co/Mn=6:1) asymmetric capacitor showed superior energy and power densities (8.0-2.4 Wh kg at 0.14-8.7 kW kg ) along with high cycling stability (90 % for 10 000 cycles at 5 Ag ).

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Sr-doped Lanthanum Nickelate Nanofibers for High Energy Density Supercapacitors

Cited by 123 publications

References 56 publications

Fabrication of a Mo‐Doped Strontium Cobaltite Perovskite Hybrid Supercapacitor Cell with High Energy Density and Excellent Cycling Life

Fabrication of a Mo‐Doped Strontium Cobaltite Perovskite Hybrid Supercapacitor Cell with High Energy Density and Excellent Cycling Life

Electrospinning of Nanofibers for Energy Applications

Bimetallic Co‐Mn Perovskite Fluorides as Highly‐Stable Electrode Materials for Supercapacitors

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