(Metal-Organic Framework)-Polyaniline sandwich structure composites as novel hybrid electrode materials for high-performance supercapacitor

Guo, Shuainan; Zhu, Yong; Yan, Yong; Min, Yulin; Fan, Jinchen; Xu, Qing; Hong, Yang

doi:10.1016/j.jpowsour.2016.03.040

Cited by 151 publications

(62 citation statements)

References 56 publications

(60 reference statements)

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“…Based on Figure (a), at low‐frequency region, PVA‐GQD/PEDOT displays a short Warburg‐line compared to other nanocomposites, indicating that incorporation of GQD into the nanofiber has enhanced the ion diffusion between electrolyte to active material . In the high‐frequency region, it was observed that the ESR for the PVA‐GQD/PEDOT is smaller than PVA/PEDOT and PEDOT (Table ), which is in agreement with the small IR drop in GCD curve.…”

Section: Resultssupporting

confidence: 67%

Fabrication of poly(vinyl alcohol)‐graphene quantum dots coated with poly(3,4‐ethylenedioxythiophene) for supercapacitor

Abidin

Mamat

Rasyid

et al. 2017

J. Polym. Sci. Part A: Polym. Chem.

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Conducting nanofiber composed of poly(vinyl alcohol) (PVA), graphene quantum dots (GQDs) and poly(3,4-ethylenedioxythiophene) (PEDOT) was prepared for symmetrical supercapacitor through electrospinning and electropolymerization techniques. The formation of PVA nanofibers with the addition of GQDs was excellently prepared with the average diameter of 55.66 6 27 nm. Field emission scanning electron microscopy images revealed that cauliflower-like structure of PEDOT was successfully coated on PVA-GQD electrospun nanofibers. PVA-GQD/PEDOT nanocomposite exhibited the highest specific capacitance of 291.86 F/g compared with PVA/ PEDOT (220.73 F/g) and PEDOT (161.48 F/g). PVA-GQD/PEDOT also demonstrated a high specific energy and specific power of 16.95 and 984.48 W/kg, respectively, at 2.0 A/g current density. PVA-GQD/PEDOT exhibited the lowest resistance of charge transfer (R ct ) and equivalent series resistance compared with PEDOT and PVA/PEDOT, indicating that the fast ion diffusion between the electrode and electrolyte interface. PVA-GQD/ PEDOT nanocomposite also showed an excellent stability with retention of 98% after 1000 cycles.

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Section: Resultssupporting

confidence: 67%

Fabrication of poly(vinyl alcohol)‐graphene quantum dots coated with poly(3,4‐ethylenedioxythiophene) for supercapacitor

Abidin

Mamat

Rasyid

et al. 2017

J. Polym. Sci. Part A: Polym. Chem.

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“…However, its poor conductivity hinders the applications in the electrochemical field. The recent progress has proved that the electric capacity can be improved prominently by introducing conductive materials such as carbon and conducting polymers into the MOF systems …”

Section: Introductionmentioning

confidence: 99%

Amorphous Cobalt Coordination Nanolayers Incorporated with Silver Nanowires: A New Electrode Material for Supercapacitors

Zhao

Qiu

et al. 2017

Part. Part. Syst. Charact.

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SCs, MOFs can be classified into two catalogues: Due to the features of their controllable pore textures, extremely large specific surface area, and improved electric conductivity, one is that MOFs can be used as remarkable precursors to synthesize carbon, porous transition metal oxides, or metal oxides which were embedded in carbon matrices with pores. [16][17][18][19][20][21][22][23][24][25] The other is directly employing MOFs as electrode materials for SCs because of their porosity and metal cations that can offer the accommodation space to the electrolyte and the actively redox sites, respectively. [26][27][28][29][30][31][32][33][34] However, there are few studies on MOFs directly as electrode materials for SCs so far, and the higher capacitance MOF materials are less reported. For instance, Diaz et al. successfully demonstrated the supercapacitive behavior with regard to a Co-Zn-based MOF. [35] Lee et al. investigated the capacitive behavior of a Co-based MOF with 3D structure in various aqueous electrolytes and found its capacitance value can reach 206 F g −1 in LiOH solution. [36] Very recently, Sheberla et al. showed that Ni 3 (HITP) 2 , a MOF with high electrical conductivity, can serve as the sole electrode material in SCs. This is the exciting example of a supercapacitor made entirely from neat MOFs as activated materials, without conductive additives or other binders. [37] Compared with transition metal oxides, the capacitance of MOFs is lower on account of their poor electrical conductivity and the pore size generally, making it difficult for electrolyte diffusion.To solve these problems of MOF electrode materials, at least two methods are proposed: one is to fabricate the nanosize particle with a valuable method, which will obviously decrease the diffusion distance of the electrolyte ion and increase the specific surface area of the active materials. As a result, the electrochemical performance will improve evidently. Very recently, Maspoch et al. reported the synthesis of a series of different nanoMOF and their electrochemical performance as the electrode materials of SCs. [38] The other is to design and synthesize new MOFs, in which redox metal cations can provide good pseudocapacitance property and large pores/space can store electrolyte solution. [39][40][41][42] Taking control of MOF crystals dimensions has attracted a lot of concerns. Furukawa et al.The 2D amorphous cobalt coordination framework/silver nanowires nanocomposites (A-CoL/Ag NC) are successfully synthesized by one-step solution agitation at room temperature. The experimental data reveal that the hybrid provides sufficient contact between active materials and electrolyte, and facilitates the transfer of ions/electrons, resulting in high specific capacitance, high output potential, great rate capacity at high current density, and good cycle stability. As supercapacitor electrode materials, the as-prepared A-CoL/ Ag NC electrode exhibits a great specific capacitance which can reach up to 1467 mF cm −2 at 1.0 mA cm −2 , and 1060 mF c...

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“…To tackle this issue, it is required to enhance the intermolecular interactions and improve the synergistic effects among two key compositions. Recently, a great interest has been drawn to produce the metal-organic frameworks (MOFs) based electrode materials to enhance the capacitance and cyclic life because of their higher surface area, inherently present metallic source, ordered structure and heteroatom in organic ligand 19 20 21 . Although these MOF-based materials with high surface area and hierarchical porous structures could in-situ confine the Faradaic-active metal or metal oxide nanostructures, their electrical conductivity is still far from the expected range for ECs due to their low graphitization 22 23 24 25 26 27 .…”

mentioning

confidence: 99%

Hierarchical Cobalt Hydroxide and B/N Co-Doped Graphene Nanohybrids Derived from Metal-Organic Frameworks for High Energy Density Asymmetric Supercapacitors

Tabassum

Mahmood

Wang

et al. 2017

Sci Rep

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To cater for the demands of electrochemical energy storage system, the development of cost effective, durable and highly efficient electrode materials is desired. Here, a novel electrode material based on redox active β-Co(OH)2 and B, N co-doped graphene nanohybrid is presented for electrochemical supercapacitor by employing a facile metal-organic frameworks (MOFs) route through pyrolysis and hydrothermal treatment. The Co(OH)2 could be firmly stabilized by dual protection of N-doped carbon polyhedron (CP) and B/N co-doped graphene (BCN) nanosheets. Interestingly, the porous carbon and BCN nanosheets greatly improve the charge storage, wettability, and redox activity of electrodes. Thus the hybrid delivers specific capacitance of 1263 F g−1 at a current density of 1A g−1 with 90% capacitance retention over 5000 cycles. Furthermore, the new aqueous asymmetric supercapacitor (ASC) was also designed by using Co(OH)2@CP@BCN nanohybrid and BCN nanosheets as positive and negative electrodes respectively, which leads to high energy density of 20.25 Whkg−1. This device also exhibits excellent rate capability with energy density of 15.55 Whkg−1 at power density of 9331 Wkg−1 coupled long termed stability up to 6000 cycles.

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(Metal-Organic Framework)-Polyaniline sandwich structure composites as novel hybrid electrode materials for high-performance supercapacitor

Cited by 151 publications

References 56 publications

Fabrication of poly(vinyl alcohol)‐graphene quantum dots coated with poly(3,4‐ethylenedioxythiophene) for supercapacitor

Fabrication of poly(vinyl alcohol)‐graphene quantum dots coated with poly(3,4‐ethylenedioxythiophene) for supercapacitor

Amorphous Cobalt Coordination Nanolayers Incorporated with Silver Nanowires: A New Electrode Material for Supercapacitors

Hierarchical Cobalt Hydroxide and B/N Co-Doped Graphene Nanohybrids Derived from Metal-Organic Frameworks for High Energy Density Asymmetric Supercapacitors

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