Core-shell structured 1,4-benzoquinone@TiO2 cathode for lithium batteries

Yang, Aikai; Wang, Xingchao; Lü, Yong; Miao, Licheng; Xie, Wei; Chen, Jun

doi:10.1016/j.jechem.2018.06.003

Cited by 23 publications

(18 citation statements)

References 36 publications

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“…Beside carbon, other conductive materials were linked to the quinone active materials as well. Chen and co‐workers encapsulated benzoquinone into TiO 2 spheres to decrease the solubility while retaining electrical conductivity . The resulting lithium‐ion cell showed a good initial capacity of 300 mAh g −1 but lost around 20 % during the first 100 cycles.…”

Section: Methodsmentioning

confidence: 99%

“…Chen and co-workers encapsulatedb enzoquinone into TiO 2 spherest od ecrease the solubility while retaining electrical conductivity. [60] The resulting lithium-ion cell showed ag ood initial capacity of 300 mAh g À1 but lost around2 0% duringt he first 100 cycles. Furthermore, severals ystems were proposed based on ac onductive polymer with quinone side groups.…”

Section: Quinones Linked To Conductive Substratesmentioning

confidence: 96%

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Sustainable Energy Storage: Recent Trends and Developments toward Fully Organic Batteries

2019

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In times of spreading mobile devices, organic batteries represent a promising approach to replace the well‐established lithium‐ion technology to fulfill the growing demand for small, flexible, safe, as well as sustainable energy storage solutions. In the last years, large efforts have been made regarding the investigation and development of batteries that use organic active materials since they feature superior properties compared to metal‐based, in particular lithium‐based, energy‐storage systems in terms of flexibility and safety as well as with regard to resource availability and disposal. This Review compiles an overview over the most recent studies on the topic. It focuses on the different types of applied active materials, covering both known systems that are optimized and novel structures that aim at being established.

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Section: Methodsmentioning

confidence: 99%

Section: Quinones Linked To Conductive Substratesmentioning

confidence: 96%

Sustainable Energy Storage: Recent Trends and Developments toward Fully Organic Batteries

2019

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“…Substantial amounts of 4‐AP, coming from the random industrial disposals, certainly pollutes the environment severely. Meanwhile, Lithium‐air batteries (LABs) are known as high energy battery owing to their flexible structures and energy storage capacities . In conjunction with liquid electrolytes in LABs, one of the major problems has been identified as the large overvoltage during the charging process, which can generate insulating materials like Li 2 O 2 .…”

Section: Introductionmentioning

confidence: 99%

“…Meanwhile, Lithium-air batteries (LABs) are known as high energy battery owing to their flexible structures and energy storage capacities. [13][14][15][16] In conjunction with liquid electrolytes in LABs, one of the major problems has been identified as the large overvoltage during the charging process, which can generate insulating materials like Li 2 O 2 . To resolve this problem, various types of redox mediators such as 2,2,6,6-tetramethylpiperidinyloxyl (TEMPO), tetrathiafulvalene (TTF) and Quinone type organic materials have been proposed.…”

Section: Introductionmentioning

confidence: 99%

“…To resolve this problem, various types of redox mediators such as 2,2,6,6-tetramethylpiperidinyloxyl (TEMPO), tetrathiafulvalene (TTF) and Quinone type organic materials have been proposed. It has been reported that the LAB prepared with simplest quinone (p-quinone) even can discharge 496 mA h/g with an average voltage of 2.7 V. [16] The p-quinone may be chemically prepared from the disposed 4-AP molecules followed by electrochemical formation of pquinone imine. Thus, the aim of the present research is to unveil the catalysis and kinetics of the conversion of 4-AP molecules into p-quinone molecules.…”

Section: Introductionmentioning

confidence: 99%

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Electrocatalytic Oxidation of 4‐Aminophenol Molecules at the Surface of an FeS₂/Carbon Nanotube Modified Glassy Carbon Electrode in Aqueous Medium

et al. 2019

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FeS2/carbon nanotube (CNT) nanocomposites were synthesized and immobilized on the surface of a glassy carbon electrode (GCE) in order to investigate the electrocatalytic conversion of 4‐aminophenol (4‐AP) into p‐quinone in an aqueous medium. The reformed electronic properties (in terms of lowering of band‐gap energy and charge‐transfer resistance), as well as improved surface area, result in an enhanced redox reaction of 4‐AP in the presence of FeS2‐CNT NCs compared to that with FeS2 alone. The 4‐AP molecules undergo coupled two‐proton and two‐electron transfer quasi‐reversible redox reactions with a symmetry factor of 0.55 and standard rate constant (k°) of 0.8 cm s−1. Here, quinone imine is generated as an intermediate which is later converted into quinone in an irreversible hydrolysis reaction. The best catalytic performance can be obtained at the pH value of 7.0.

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In Situ Polymerized Conjugated Poly(pyrene‐4,5,9,10‐tetraone)/Carbon Nanotubes Composites for High‐Performance Cathode of Sodium Batteries

Shi

Liu

Lü

et al. 2020

Advanced Energy Materials

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Sodium batteries have attracted much attention in recent years because of their comprehensive electrochemical performance, high abundance, and low cost of sodium resources. However, the unsatisying energy density and poor cycling stability of current sodium batteries restrict their large‐scale applications. Here an in situ polymerization method to construct π‐conjugated poly(pyrene‐4,5,9,10‐tetraone)/carbon nanotubes (PPTO–CNTs) composites as cathode materials for sodium batteries is used. It is found that the π–π interaction between PPTO and CNTs in PPTO–CNTs composites overcomes the repulsion between each PPTO unit, leading to a flat configuration of PPTO and enhancing the electronic conductivity and active sites accessibility of PPTO–CNTs composites. Thus, PPTO–CNTs electrodes display a high discharge capacity of 360.2 mAh g−1, long cycling stability (a capacity retention of 95.1% after 1300 cycles), and high rate capability (194.5 mAh g−1 at 10.0 A g−1). Moreover, a pouch‐type Na//PPTO–CNTs cell with an energy density of ≈204.0 Wh kg−1PPTO+Na is fabricated, exhibiting a capacity retention of 91.2% after 100 cycles. In addition, the combination of experiments and theoretical calculations demonstrates the four‐sodium‐ion redox chemistry mechanism of each PPTO molecule unit. This work should promote the practical application of conjugated polymers in high‐performance sodium batteries.

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Core-shell structured 1,4-benzoquinone@TiO2 cathode for lithium batteries

Cited by 23 publications

References 36 publications

Sustainable Energy Storage: Recent Trends and Developments toward Fully Organic Batteries

Sustainable Energy Storage: Recent Trends and Developments toward Fully Organic Batteries

Electrocatalytic Oxidation of 4‐Aminophenol Molecules at the Surface of an FeS₂/Carbon Nanotube Modified Glassy Carbon Electrode in Aqueous Medium

In Situ Polymerized Conjugated Poly(pyrene‐4,5,9,10‐tetraone)/Carbon Nanotubes Composites for High‐Performance Cathode of Sodium Batteries

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Core-shell structured 1,4-benzoquinone@TiO2 cathode for lithium batteries

Cited by 23 publications

References 36 publications

Sustainable Energy Storage: Recent Trends and Developments toward Fully Organic Batteries

Sustainable Energy Storage: Recent Trends and Developments toward Fully Organic Batteries

Electrocatalytic Oxidation of 4‐Aminophenol Molecules at the Surface of an FeS2/Carbon Nanotube Modified Glassy Carbon Electrode in Aqueous Medium

In Situ Polymerized Conjugated Poly(pyrene‐4,5,9,10‐tetraone)/Carbon Nanotubes Composites for High‐Performance Cathode of Sodium Batteries

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Electrocatalytic Oxidation of 4‐Aminophenol Molecules at the Surface of an FeS₂/Carbon Nanotube Modified Glassy Carbon Electrode in Aqueous Medium