Designing cobalt-based coordination polymers for high-performance sodium and lithium storage: from controllable synthesis to mechanism detection

Yin, Xiuping; Lv, Liping; Tang, Xuxu; Chen, Xi; Sun, Weiwei; Wang, Y.

doi:10.1016/j.mtener.2020.100478

Cited by 16 publications

(13 citation statements)

References 55 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It can be observed that the intensity of the characteristic peaks around 1684 cm –1 (assigned to CO groups) strengthened upon charging and weakened during discharging, implying the structural evolution between phenol-TABQ and quinoid-TABQ as shown in Figure b. Meanwhile, the characteristic peak of CC arising from the benzene ring (1542 cm –1 ) weakened upon charging and recovered during the discharging process, revealing the redox transformation of the active molecule TABQ. , In addition to FTIR, the in situ Raman test of TABQ-MWCNTs (1:1) was also implemented. As displayed in Figure d,e, the Raman peak at around ∼1470 cm –1 can be attributed to CC of the benzene ring in TABQ weakened during the charging process but was restored during the subsequent discharge process .…”

Section: Resultsmentioning

confidence: 97%

“…Meanwhile, the characteristic peak of C�C arising from the benzene ring (1542 cm −1 ) weakened upon charging and recovered during the discharging process, revealing the redox transformation of the active molecule TABQ. 36,37 In addition to FTIR, the in situ Raman test of TABQ-MWCNTs (1:1) was also implemented. As displayed in Figure 6d,e, the Raman peak at around ∼1470 cm −1 can be attributed to C�C of the benzene ring in TABQ weakened during the charging process but was restored during the subsequent discharge process.…”

Section: Electrochemical Performance Characterizationmentioning

confidence: 99%

See 1 more Smart Citation

Redox-Active Tetramino-Benzoquinone π–π Stacking and H-Bonding onto Multiwalled Carbon Nanotubes toward a High-Performance Asymmetric Supercapacitor

Liu

Yuan

Fang

et al. 2022

ACS Appl. Energy Mater.

View full text Add to dashboard Cite

The energy density of supercapacitors with carbon-based electrode materials is generally restricted by their limited electric double-layer capacitance (EDLC). The introduction of electroactive molecules to acquire abundant pseudocapacitance represents an efficient way to achieve a high-performance capacitor system. Herein, this work anchors redox-active tetramino-benzoquinone (TABQ) with multiwalled carbon nanotubes (MWCNTs) to form a composite (denoted as TABQ-MWCNTs). Due to the strong π–π stacking and H-bonding interaction between TABQ molecules and the MWCNT host, the TABQ-MWCNTs acquire enhanced structural stability and shortened pathway for electrons/charges, which facilitate their energy storage capability. Specifically, by adjusting the mass ratio of TABQ to MWCNTs, the composite can attain a high specific capacitance of 463 F g–1 at 1 A g–1 compared to that of bare MWCNTs (17 F g–1). Theoretical calculations show that TABQ-MWCNTs own a lower adsorption energy toward H+, suggesting its better EDLC capability through charge accumulation. Moreover, in situ Fourier transform infrared spectroscopy (FTIR) and Raman tests reveal that the TABQ molecules hosted on MWCNTs undergo a reversible evolution of the quinone-to-phenol structure during the discharging/charging process, further verifying its promising pseudocapacitance through faradic reactions. In addition to the high capacitance, the TABQ-MWCNT composite also exhibits good cyclability in a three-electrode system, i.e., 76.8% of the initial capacitance is obtained after cycling for 6000 times at 10 A g–1. An asymmetric supercapacitor (ASC) of TABQ-MWCNTs//activated carbon achieves a high energy density of 15.6 Wh kg–1 at a power density of 700 W kg–1. Moreover, it also shows a long-term cyclability of 91.5% after 10,000 cycles at 5 A g–1.

show abstract

Section: Resultsmentioning

confidence: 97%

Section: Electrochemical Performance Characterizationmentioning

confidence: 99%

Redox-Active Tetramino-Benzoquinone π–π Stacking and H-Bonding onto Multiwalled Carbon Nanotubes toward a High-Performance Asymmetric Supercapacitor

Liu

Yuan

Fang

et al. 2022

ACS Appl. Energy Mater.

View full text Add to dashboard Cite

show abstract

“…The high-resolution XPS spectrum of C 1s (Figure 2d) consists of four sub-peaks at 284.68, 285.23, 286.16, and 288.62 eV, which belong to C=C, C-C, C-O, and C=O, respectively. [26,42,44] The microscopic morphology of the prepared porous nanofibers is shown in Figure 3a. The PMMA and PAN in the precursor solution were stretched due to the high-voltage electric field during the electrospinning process.…”

Section: Resultsmentioning

confidence: 99%

“…The high‐resolution XPS spectrum of C 1 s (Figure 2d) consists of four sub‐peaks at 284.68, 285.23, 286.16, and 288.62 eV, which belong to C=C, C–C, C–O, and C=O, respectively. [ 26,42,44 ]…”

Section: Resultsmentioning

confidence: 99%

Novel Gas‐Solid Reaction Grown Small‐Size Co‐MOFs on Electrospun Porous Carbon Nanofibers for High Capacity Lithium Storage

Yang

Shen

et al. 2023

Physica Status Solidi (a)

View full text Add to dashboard Cite

Metal–organic frameworks (MOFs) are considered potential electrode materials for lithium‐ion batteries (LIBs) in the future because of their structural diversity and high controllability. However, due to poor electrical conductivity and few exposed active sites caused by structural stacking, MOFs material is difficult to use as electrode material directly. Therefore, herein, a new preparation method is proposed. Specifically, vapors containing organic ligands reacted with porous carbon fibers loaded with metal ions under high temperature and pressure to prepare porous carbon nanofibers loaded with nanoscale Co‐MOF particles (Co‐MOF/Pcnf). Compared with the solvothermal method, the gas‐solid reaction method can limit the growth of MOFs to a certain extent. Nanoscale MOFs particles have a larger specific surface area, exposing more active sites. The introduction of porous carbon fibers enhances electrical conductivity. These properties have a positive effect on improving the performance and stability of the corresponding batteries. When used as an anode of LIBs, the Co‐MOF/Pcnf composite exhibits a specific capacity of 1036.9 mAh g−1 after 150 cycles at 0.5 A g−1 and an excellent long‐term cycling capability (820.33 mAh g−1 at 1 A g−1 after 300 cycles). This novel preparation method can provide ideas for future research on electrode materials for MOFs.

show abstract

“…19,20 However, in the SIB field, a small number of MOFs have been used as electrodes. [21][22][23][24] In contrast, MOF derivatives are widely used in SIBs, such as carbon materials, 25 metal oxides, 26 metal sulfides, phosphides, and selenides. [27][28][29] Only a few pristine MOFs are used as electrodes for SIBs because there are improvements in some aspects of MOFs: (1) coordination bonds between metal ions and organic ligands are needed to strengthen to increase the cycling stability; (2) it is necessary to enhance the electronic conductivity to increase the electrochemical activity and reaction kinetics; and (3) the solvent molecules in channels and pores need to be removed to expose clogged pores and active sites.…”

Section: Introductionmentioning

confidence: 99%

Engineering the modulation of the active sites and pores of pristine metal–organic frameworks for high-performance sodium-ion storage

Wei¹,

Wang²,

Chen³

et al. 2023

Inorg. Chem. Front.

View full text Add to dashboard Cite

show abstract

Designing cobalt-based coordination polymers for high-performance sodium and lithium storage: from controllable synthesis to mechanism detection

Cited by 16 publications

References 55 publications

Redox-Active Tetramino-Benzoquinone π–π Stacking and H-Bonding onto Multiwalled Carbon Nanotubes toward a High-Performance Asymmetric Supercapacitor

Redox-Active Tetramino-Benzoquinone π–π Stacking and H-Bonding onto Multiwalled Carbon Nanotubes toward a High-Performance Asymmetric Supercapacitor

Novel Gas‐Solid Reaction Grown Small‐Size Co‐MOFs on Electrospun Porous Carbon Nanofibers for High Capacity Lithium Storage

Engineering the modulation of the active sites and pores of pristine metal–organic frameworks for high-performance sodium-ion storage

Contact Info

Product

Resources

About