Fluorine-Doped Tin Oxide Nanocrystal/Reduced Graphene Oxide Composites as Lithium Ion Battery Anode Material with High Capacity and Cycling Stability

Xu, Haiping; Shi, Liyi; Wang, Zhuyi; Liu, Jia; Zhu, Jiefang; Zhao, Yin; Zhang, Meihong

doi:10.1021/acsami.5b09538

Cited by 54 publications

(31 citation statements)

References 55 publications

(96 reference statements)

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“…Apart from the MnOMn and MnOH bonds, an unusual peak around 530.7 eV confirms the formation of MnOC bonds in all GQDs/MnO 2 heterostructural materials. [41] Based on this, we can infer that the heterostructural materials were formed as the result of π-π stacking between the GQDs and MnO 2 nanosheets. [42] The tuning of PECVD deposition time plays an important role in the formation of MnOC bonds.…”

Section: Resultsmentioning

confidence: 74%

Heterostructural Graphene Quantum Dot/MnO₂ Nanosheets toward High‐Potential Window Electrodes for High‐Performance Supercapacitors

et al. 2018

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a great deal of research effort has been devoted on high energy density supercapacitors. According to the equation of energy density E = 1/2 CV 2 , the energy density (E) of supercapacitors can be enhanced by increasing either voltage window (V) or specific capacitance (C). [5] For high specific capacitance, one of the research efforts should concentrate on using transition metal oxides (TMO) (e.g., MnO 2 , RuO 2 ) as electrode materials. [6,7] They can provide great specific capacitance due to the pseudocapacitive characteristic. [8,9] Among TMO materials, MnO 2 is one of the most potential materials for supercapacitors due to its high theoretical specific capacitance, environmental friendliness, and the high practical voltage window (about 1 V). [2] However, it has suffered from intrinsically low conductivity and specific surface area, which severely restrict its further development in practical application of supercapacitors. In this regard, integrating nanostructured MnO 2 and conductive carbon materials to fabricate novel hybrid nanostructures is a plausible solution to overcome this obstacle. [4] Further, some research efforts have been accordingly performed to synthesize hybrid nanostructures electroactive materials for constructing supercapacitors with considerable performance. Some researchers accordingly synthesized highperformance nanostructured MnO 2 -carbon materials electrodes, whose specific capacitance is close to theoretical value. However, the undesirable contact resistances that produced by the weak and noncoherent TMO/conductor interfaces lead to sluggish kinetics for charge transport, which requires further improvement. [10,11] In order to further improve the energy density, some researchers have concentrated on enlarging the voltage window of supercapacitors. The applications of aqueous electrolytes have been limited by their theoretical voltage window (≈1.23 V) and the practical voltage window is mostly lower than about 1 V for supercapacitors. [12] To extend the voltage window, various techniques have been applied, such as dual shuttle-ion electrolytes, [13,14] pH adjustment of electrolytes, [15] and concentrated electrolytes. [16][17][18] All of these methods have complex processing technologies and sacrifice capacitance, so being difficult for practical applications. Recently, Zhu and co-workers

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Section: Resultsmentioning

confidence: 74%

Heterostructural Graphene Quantum Dot/MnO₂ Nanosheets toward High‐Potential Window Electrodes for High‐Performance Supercapacitors

et al. 2018

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“…Fluorine doping in SnO 2 benefited the formation of uniformly distributed SnO 2 nanoparticles on the graphene matrix, optimized the SEI film, and strengthened the contact between the SnO 2 and the graphene matrix. As a result, the electrochemical kinetic performance and reversible capacity of SnO 2 have been enhanced by fluorine substitution (Figure ) . A very high capacity of 1277 mAh g −1 was achieved for the fluorine‐doped SnO 2 electrode after 100 cycles.…”

Section: Halides In Lithium‐ion Batteriesmentioning

confidence: 94%

Halide‐Based Materials and Chemistry for Rechargeable Batteries

et al. 2020

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Rechargeable batteries are considered one of the most effective energy storage technologies to bridge the production and consumption of renewable energy. The further development of rechargeable batteries with characteristics such as high energy density, low cost, safety, and a long cycle life is required to meet the ever‐increasing energy‐storage demands. This Review highlights the progress achieved with halide‐based materials in rechargeable batteries, including the use of halide electrodes, bulk and/or surface halogen‐doping of electrodes, electrolyte design, and additives that enable fast ion shuttling and stable electrode/electrolyte interfaces, as well as realization of new battery chemistry. Battery chemistry based on monovalent cation, multivalent cation, anion, and dual‐ion transfer is covered. This Review aims to promote the understanding of halide‐based materials to stimulate further research and development in the area of high‐performance rechargeable batteries. It also offers a perspective on the exploration of new materials and systems for electrochemical energy storage.

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“…15b and c shows galvanostatic cycling and the rate capability respectively. Besides various rGO based composites like (i) crumpled rGO/MoS 2 nanoflowers, 172 (ii) amorphous GeO x -coated rGO balls, 173 (iii) copper sulfide nanowires/rGO, 174 (iv) Si/Ti 2 O 3 /rGO, 175 (v) MnS hollow microspheres-rGO, 176 (vi) copper silicate hydrate hollow spheres-rGO 177 (vii) fluorine-doped tin oxide nanocrystal/rGO, 178 (viii) hollow nanobarrels of α-Fe 2 O 3 on rGO 179 and (ix) hierarchical rGO-Co 2 V 2 O 7 nanosheets 180 etc. shows an improved performance and stability as anode material for the lithium-ion batteries.…”

Section: Lithium Ion Battery Application 511 Anode Materialsmentioning

confidence: 99%

Graphene oxide: strategies for synthesis, reduction and frontier applications

2016

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Till now, several innovative methods have been developed for the synthesis of graphene materials including mechanical exfoliation, epitaxial growth by chemical vapor deposition, chemical reduction of graphite oxide, liquid-phase exfoliation, arc discharge of graphite, in situ electron beam irradiation, epitaxial growth on SiC, thermal fusion, laser reduction of polymers sheets and unzipping of carbon nanotubes etc. Generally large scale graphene nanosheets are reliably synthesized utilising other forms of graphene-based novel materials, including graphene oxide (GO), exfoliated graphite oxide (by thermal and microwave), and reduced graphene oxide. The degree of GO reduction and number of graphene layers are minimized mainly by applying two approaches via chemical or thermal treatments. The promising and excellent properties together with the ease of processibility and chemical functionalization makes graphene based materials specially GO, ideal candidates for incorporation into a variety of advanced functional materials. Chemical functionalization of graphene can be easily achieved, by the introduction of various functional groups. These functional groups help to control and manipulate the graphene surfaces and help to tune the properties of the resulting hybrid materials. Importantly, graphene and its derivatives GO, have been explored in a wide range of applications, such as energy generation/storage, optical devices, electronic and photonic devices, drug delivery, clean energy, and chemical/bio sensors. In this review article, we have incorporated general introduction of GO, their synthesis, reduction and some selected frontier applications.

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Fluorine-Doped Tin Oxide Nanocrystal/Reduced Graphene Oxide Composites as Lithium Ion Battery Anode Material with High Capacity and Cycling Stability

Cited by 54 publications

References 55 publications

Heterostructural Graphene Quantum Dot/MnO₂ Nanosheets toward High‐Potential Window Electrodes for High‐Performance Supercapacitors

Heterostructural Graphene Quantum Dot/MnO₂ Nanosheets toward High‐Potential Window Electrodes for High‐Performance Supercapacitors

Halide‐Based Materials and Chemistry for Rechargeable Batteries

Graphene oxide: strategies for synthesis, reduction and frontier applications

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Fluorine-Doped Tin Oxide Nanocrystal/Reduced Graphene Oxide Composites as Lithium Ion Battery Anode Material with High Capacity and Cycling Stability

Cited by 54 publications

References 55 publications

Heterostructural Graphene Quantum Dot/MnO2 Nanosheets toward High‐Potential Window Electrodes for High‐Performance Supercapacitors

Heterostructural Graphene Quantum Dot/MnO2 Nanosheets toward High‐Potential Window Electrodes for High‐Performance Supercapacitors

Halide‐Based Materials and Chemistry for Rechargeable Batteries

Graphene oxide: strategies for synthesis, reduction and frontier applications

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Product

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Heterostructural Graphene Quantum Dot/MnO₂ Nanosheets toward High‐Potential Window Electrodes for High‐Performance Supercapacitors

Heterostructural Graphene Quantum Dot/MnO₂ Nanosheets toward High‐Potential Window Electrodes for High‐Performance Supercapacitors