Millimeter-scale laminar graphene matrix by organic molecule confinement reaction

Ding, Shukai; Cheng, Wei; Du, Gaohui; Su, Qingmei; Guo, Linjuan; Chen, Xiaojuan; Zhang, Shuai; Shang, Lin; Hao, Xiaodong; Xu, Bingshe; Serra, Christophe A.

doi:10.1016/j.carbon.2020.01.075

Cited by 9 publications

(15 citation statements)

References 39 publications

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“…Moreover, the z-average size of the nanoemulsion after just completing emulsification was 38.17 nm, and the polydispersity index (PDI) was 0.177 in Figure 3C, which generally was known as a monodispersing system because PDI > 0.2. 31 After the aging process, the size and the PDI value did not change, which showed the high stability of the nanoemulsion and the nonleakage of TPE. After polymerization, the size and the PDI value were shifted to 45.58 nm and 0.151, respectively.…”

Section: Resultsmentioning

confidence: 93%

“…The photographs under the UV lamp revealed the visible fluorescence from three samples, and the distinct intensity was judged by the naked eye. Moreover, the z -average size of the nanoemulsion after just completing emulsification was 38.17 nm, and the polydispersity index (PDI) was 0.177 in Figure C, which generally was known as a monodispersing system because PDI > 0.2 . After the aging process, the size and the PDI value did not change, which showed the high stability of the nanoemulsion and the nonleakage of TPE.…”

Section: Resultsmentioning

confidence: 95%

“…The nanogel was synthesized based on nanoemulsions (NEs), which were prepared by spontaneous emulsification methods. , Over the past decades, the NEs attracted broad interest in various fields, such as food, cosmetics, pharmaceuticals, drug delivery, even nanoreactors for chemical synthesis because of the controllable size (20 to 500 nm), stability, and biocompatibility. − In detail, the nanogels were synthesized by in situ UV-polymerization of the monomer in the oily nanodroplets of NEs. The nanogels have demonstrated a high potential in drug delivery because of the ultraslow release without the burst effect. , …”

Section: Introductionmentioning

confidence: 99%

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Tetraphenylethylene-Based Nanogels by Physical Encapsulation Technology: An AIEgen Transparent Film Thermometers

Yang

Hou

et al. 2022

ACS Appl. Polym. Mater.

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AIEgens have attracted intensive interest because of the unusual fluorescence feature. Although AIEgen-based materials have been developed for responding to the diverse ex-stimuli, such as mechano-, electro-, and thermal-stimuli, the practical application of AIEgen-based thermoluminescence is hampered for the following reasons: (1) high cost attributed to the complicated chemical modification, (2) low contrast and responsiveness resulting from the chromophoric property of the thermal functional group. In this contribution, a facile encapsulation technology-based strategy without any chemical modifications is developed to form the encapsulated TPE nanogels for the preparation of the AIEgen-based thermoluminescence. Thanks to the coexistence of the liquid and solid phases, the nanogel-based AIEgens can not only attain the transparent feature but also a reversible transformation between the single-molecule and aggregated state by ex-thermal stimuli. In the nanogel, the two aggregated states of TPE molecules are observed that result from being tangled by poly-TPGDA and from being self-assembled, respectively. Furthermore, the nanogels prepared at different temperatures demonstrate the controllable fluorescence intensity. The higher preparation temperature results in more aggregated TPE and higher fluorescence intensity. Finally, the nanogels are easily formed into the transparent film thermometers because of their flowability, which shows a switchable and stable fluorescence by ex-thermal stimuli. The transparent film thermometer demonstrates high potential in anticounterfeiting technology and biological imaging.

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Section: Resultsmentioning

confidence: 93%

Section: Resultsmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Tetraphenylethylene-Based Nanogels by Physical Encapsulation Technology: An AIEgen Transparent Film Thermometers

Yang

Hou

et al. 2022

ACS Appl. Polym. Mater.

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“…the nanogel. It can transform into the graphene nanosheet matrix by direct calcination, which demonstrated excellent electrochemical performance as an anode in LIBs. , …”

Section: Results and Discussionmentioning

confidence: 99%

“…After calcination, SnCo NAs/G-L and SnCo NAs/G-H are presented in Figure C,D. SnCo NAs/G-L were 2D materials with a metallic luster, which resulted from the delocalized π electrons. , Conversely, SnCo NAs/G-Hs were chunky materials with a jet-black color, shown in Figure D, which was attributed to the high content of SnCo NAs.…”

Section: Results and Discussionmentioning

confidence: 99%

SnCo Nanoalloy/Graphene Anode Constructed by Microfluidic-Assisted Nanoprecipitation for Potassium-Ion Batteries

Nie

Zhang

Ding

et al. 2022

ACS Appl. Nano Mater.

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Potassium-ion batteries have attracted substantial interest due to abundant resources and comparable electrochemical performance with lithium-ion batteries. Although plenty of graphene-based materials with ultrahigh performance have been designed, in practice, the dendrite growth induced by the capacitive-dominated potassium storage mechanism and the poor repeatability resulting from the complicated process are worrisome. To address these issues, it is envisaged that embedding SnCo nanoalloys in a graphene nanosheet matrix (SnCo NAs/G) can be an effective strategy for the following two reasons: (1) The embedded SnCo NAs are responsible for expanding the interlayer space and facilitating the potassium-ion diffusion in a graphene nanosheet matrix and (2) the combination of the microfluidic technology and the organic molecule confinement reaction endows the repeatability and large-scale production. As a result, the SnCo NAs/G-L anode is prepared with a low content of SnCo NAs (9.16 wt %). It shows advantages in the electrochemical performance as compared to the graphite anode. A reversible specific capacity of 165 mA h g–1 at 50 mA g–1 over 100 cycles is exhibited by SnCo NAs/G-L. It has a retention capacity of 179 mA h g–1, that is, 78.8% is recovered after charging at 500 mA g–1. Moreover, the intercalation reaction as the dominant potassium storage mechanism is beneficial for avoiding the safety problems arising from potassium dendrite growth. More interestingly, graphite-based composites constructed by the microfluidic technology successfully prove the high potential for large-scale production.

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Alloying and Nanotechnology for Sn‐based Anode Materials: Paving the Way to the Future of Lithium‐Ion Batteries

Ding,

Zhang,

et al. 2023

Batteries & Supercaps

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The development of lithium‐ion batteries (LIBs) with high energy density is of utmost importance to meet the growing demand for 3C devices and electric automobiles worldwide. Over the past three decades, there has been significant interest in Sn‐based anode materials for LIBs, owing to their high specific capacity and low charge/discharge plateau. Two primary strategies, namely alloying and nanotechnology, have been extensively investigated to enhance the electrochemical performance of Sn‐based anodes. However, the complete understanding and recognition of the full potential of these strategies, both in the past and future, remains incomplete. This review aims to provide a comprehensive discussion on the development of Sn‐based anodes prepared using the aforementioned strategies. Furthermore, it emphasizes the practical potential of Sn‐based anodes and the associated preparation technologies for large‐scale production. Establishing a strong connection between these technologies and high‐performance Sn‐based composites is crucial, and this objective will be achieved through an extensive comparison and detailed introduction of relevant concepts. By addressing these aspects, this review will contribute to the advancement of Sn‐based anodes research and its application in high‐performance LIBs, ultimately driving progress in the field of energy storage.

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Millimeter-scale laminar graphene matrix by organic molecule confinement reaction

Cited by 9 publications

References 39 publications

Tetraphenylethylene-Based Nanogels by Physical Encapsulation Technology: An AIEgen Transparent Film Thermometers

Tetraphenylethylene-Based Nanogels by Physical Encapsulation Technology: An AIEgen Transparent Film Thermometers

SnCo Nanoalloy/Graphene Anode Constructed by Microfluidic-Assisted Nanoprecipitation for Potassium-Ion Batteries

Alloying and Nanotechnology for Sn‐based Anode Materials: Paving the Way to the Future of Lithium‐Ion Batteries

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