Ultrahigh rate capability of 1D/2D polyaniline/titanium carbide (MXene) nanohybrid for advanced asymmetric supercapacitors

Zhou, Jinhua; Kang, Qi; Xu, Shuchi; Li, Xiaoge; Liu, Cong; Ni, Lu; Chen, Ning-Na; Lu, Chunliang; Wang, Xizhang; Peng, Luming; Guo, Xuefeng; Ding, Weiping; Hou, Wenhua

doi:10.1007/s12274-021-3472-2

Cited by 62 publications

(31 citation statements)

References 61 publications

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“…It is well known that the potentiometric titration method possesses the characteristics of higher accuracy and less influence of human factors than the acid–base titration method. , The above titration results measured by the acid–base titration method are further verified by the potentiometric titration method, which determines the end-point of titration by the sudden potential change of the indicatory electrode. As shown in Figure , the sudden potential changes appear when the consumptions of KOH solution are 0.25, 0.30, 0.14, and 0.26 mL for the titration solvents of methylbenzene, isopropanol, and water ( V methylbenzene / V isopropanol / V water = 100:99:1), isopropanol and water ( V isopropanol / V water = 99:1), absolute ethanol and water ( V absolute ethanol / V water = 99:1), and cyclohexane, isopropanol, and water ( V cyclohexane / V isopropanol / V water = 100:99:1), respectively, which are consistent with the acid–base titration results.…”

Section: Results and Discussionmentioning

confidence: 87%

Study on the Alternative Solvent of Methylbenzene in the Total Acid Number Titration of Current Jet Fuels

Chen

Jiang²,

Yan

et al. 2022

ACS Omega

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Evaluation of the acidic characteristics of a jet fuel, especially for the total acid number (TAN), is of great significance to ensure flight safety. Methylbenzene is commonly used as the titration solvent; however, it is poisonous and harmful to the environment. It is highly desirable to develop an alternative solvent for methylbenzene to extract the acidic compounds from the jet fuel during the determination of the TAN. Here, we develop a desirable alternative solvent of a mixed ethanol–water solution with the volume ratio of ethanol to water of 99:1, which exhibits a value of TAN similar to that of the solvent of methylbenzene in potentiometric titration and acid–base titration methods. The TAN value derived from the different titration solvents was in the order of 2.96 μg KOH g–1 (V cyclohexane/V isopropanol/V water = 100:99:1) > 2.68 μg KOH g–1 (V methylbenzene/V isopropanol/V water = 100:99:1) ≈ 2.6 μg KOH g–1 (V absolute ethanol/V water = 99:1) > 2.34 μg KOH g–1 (V isopropanol/V water = 99:1). The current report presents a nontoxic and eco-friendly alternative solvent for methylbenzene, which may open up an avenue for evaluating the TAN of jet fuels.

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Section: Results and Discussionmentioning

confidence: 87%

Study on the Alternative Solvent of Methylbenzene in the Total Acid Number Titration of Current Jet Fuels

Chen

Jiang²,

Yan

et al. 2022

ACS Omega

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“…Very recent similar work, the 1D/2D PANI/Ti 3 C 2 T x MXene nanohybrid with a high operating voltage, high specific capacitance, ultrahigh rate capability as well as good cycle stability was assembled for supercapacitors by Wenhua Hou et al based on electrostatic interaction between negatively charged Ti 3 C 2 T x nanosheets and positively charged protonated PANI nanofibers. [80] The introduction of highly redox-active PANI nanofibers into highly conductive Ti 3 C 2 T x nanosheets and wellaligned nanostructure together contributed improved performance. Specially, the fabricated PANI@Ti 3 C 2 T x //CPC asymmetric supercapacitor showed an ultra-wide operating voltage of 3.0 V, a maximum energy density of 67.2 Wh kg À 1 (at 1.5 kW kg À 1 ), a maximum power density of 30 kW kg À 1 (at 27 Wh kg À 1 ) and a capacitance retention of 80.4 % after 5,000 charge-discharge cycles.…”

Section: Organics/mxene Composites As Electrode Active Materials For ...mentioning

confidence: 99%

Organics‐MXene Composites as Electrode Materials for Energy Storage

Sun

Gao

et al. 2022

Batteries & Supercaps

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Batteries & Supercaps www.batteries-supercaps.org Review doi.org/10.1002/batt.202200402 development of organics/MXene-based composites and summarizes the various strategies for assembling or fabricating organics/MXene-based hybrid composites. Applications of these organics/MXene-based electrode materials in supercapacitors and batteries are also discussed in brief along with analysis of their excellent electrochemical performances and the charge storage mechanisms. Finally, some remaining challenging issues and future opportunities of organics/MXene composites as electrode materials for the high-power and low-cost rechargeable batteries or supercapacitors are also discussed.

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“…Very recently, the PANI/Ti 3 C 2 T x nanohybrid electrode was obtained by adopting a simple and economic technique via self-assembling of PANI nanofibers and Ti 3 C 2 T x nanosheets. It was employed to set up an asymmetric cell by combining PANI/Ti 3 C 2 T x nanohybrid as the positive electrode and carrot-derived porous carbon as negative electrode respectively that demonstrated utmost energy density of 50.8 Whkg -1 @ 0.9 kWkg -1 and an output voltage of 1.8 V in the aqueous electrolyte which was further upgraded to 67.2 Whkg -1 @ 1.5 kWkg -1 with extended voltage window of 3 V in organic electrolytes correspondingly [94].…”

Section: Mxenementioning

confidence: 99%

Role of MXenes/Polyaniline Nanocomposites in Fabricating Innovative Supercapacitor Technology

Majumdar¹

2021

Advanced Energy Conversion Materials

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Versatile and exclusive electronic, optical, physicochemical, electrochemical and mechanical features of both conducting polymers and MXenes have stimulated global scientists to take serious impetuses in designing innovative high-performance energy storage systems with these materials, for resolving the growing needs for auto-powering mechanically flexible and wearable electronics for all essential technological fields. However, both the materials have experienced some serious practical limitations, which have driven the scientific community to look for necessary modifications in the form of MXenes/PANI nanocomposites with suitable compositions that would essentially restore their representative characteristics but successfully suppress their functional drawbacks concurrently and considerably. Accordingly, in the present overview, the different strategies of fabrication of MXenes/PANI nanocomposites for advanced supercapacitors with special reference to the necessary morphological modifications brought about by synthetic improvisations that resulted in superior capacitive, electronic charge transport as well as structural properties have also been recognized and compared. Such analysis would purposefully assist in adjusting the integral mechanical and electrochemical responses for scheming smarter and highly flexible microelectronics soon.

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Ultrahigh rate capability of 1D/2D polyaniline/titanium carbide (MXene) nanohybrid for advanced asymmetric supercapacitors

Cited by 62 publications

References 61 publications

Study on the Alternative Solvent of Methylbenzene in the Total Acid Number Titration of Current Jet Fuels

Study on the Alternative Solvent of Methylbenzene in the Total Acid Number Titration of Current Jet Fuels

Organics‐MXene Composites as Electrode Materials for Energy Storage

Role of MXenes/Polyaniline Nanocomposites in Fabricating Innovative Supercapacitor Technology

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