Self nitrogen-doped carbon nanotubes as anode materials for high capacity and cycling stability lithium-ion batteries

Li, Jiangang; Zhang, Feng; Wang, Chundong; Shao, Changzhen; Li, Baozong; Li, Yi; Wu, Qi‐Hui; Yang, Yonggang

doi:10.1016/j.matdes.2017.07.060

Cited by 25 publications

(21 citation statements)

References 44 publications

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“…[12][13][14] Carbon nanotubes (CNTs) are carbon allotropes with different length and diameter cylindrical nanostructure with amazing mechanical, electrical, thermal, and adsorption properties. [15][16][17][18] Versatile outstanding applications of CNTs were used in many industrial sectors and on industrial scale such as lithium ion battery, 19 drug delivery system, 20 biomedical applications, 21 and manufactured implants. 22 In particular, CNTs have many applications in electronics like implantable supercapacitors, 5 field effect transistors, 23 and photovoltaics.…”

Section: Introductionmentioning

confidence: 99%

π‐Plasmon absorbance films of carboxylic functionalized CNTs coupled with renewable PGP platforms

Fares

2018

Polymers for Advanced Techs

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π‐Plasmon absorbance films of carboxylic functionalized multiwall carbon nanotubes (CNTs) coupled with renewable and recycled polycaprolactone grafted pectin (PGP) platforms as successful alternative for ordinary nondegradable platforms were investigated. Characterization of the synthesized carboxylic functionalized CNTs was performed using 1H NMR and attenuated total reflectance Fourier transform infrared for structural identification, thermogravimetric analysis and derivative thermogravimetric analysis for thermal stability, and X‐ray powder diffraction for crystal structure, whereas the characterization of prepared PGP was done by means of attenuated total reflectance Fourier transform infrared for chemical structure, differential scanning calorimetry for melting endotherms of polycaprolactone and high crystalline structure of PGP, and thermogravimetric analysis and derivative thermogravimetric analysis for thermal stability of PGP. Fabrication of water‐dispersed carboxylic functionalized CNTs coupled with PGP films was performed by casting technique in the presence of Ca2+ as cross‐linker. The thin films were tested for π‐plasmon absorbance using UV‐Vis spectrometry. Different fractions of carboxylic functionalized CNTs and PGP films demonstrated π‐plasmon absorbance broad peaks at λmax = 232 nm, which corresponded to 5.36 eV. The fabrication of novel films from renewable recycled PGP platform and advanced carboxylic functionalized CNTs properties will be the key features for many of next forthcoming technologies. The PGP considered as environment‐friendly and easily degradable platforms will be a successful alternative for conventional nondegradable electronic platforms, and water‐dispersed carboxylic functionalized CNTs with advanced properties will be finding accelerating executive applications.

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Section: Introductionmentioning

confidence: 99%

π‐Plasmon absorbance films of carboxylic functionalized CNTs coupled with renewable PGP platforms

Fares

2018

Polymers for Advanced Techs

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“…The N 1 s high resolution spectrum can be assigned to four peaks: Pyridinic N (N-6), pyrrolic N (N-5), quaternary N (N-Q), and pyridine-N-oxide (N-X) (inset Figure 6b). As shown in Figure 7, the chemical forms of N in nitrogen doped carbon materials have been proposed by research groups [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. N-Q can offer highly active sites, and N-6 and N-5 can improve the wettability of carbon material to increase the effective specific surface area for double layer formation.…”

Section: Physichemical Characteristics Of Samplesmentioning

confidence: 99%

“…Recently, nitrogen-doped carbon materials have been widely applied to the fuel cell [1], solar cell [2], lithium-ion battery [3], lithium air battery [4], electrocatalysis [5], and adsorption [6,7]. Various nitrogen-doped carbon materials [8][9][10][11][12][13][14][15][16][17], such as carbon nanotube [9][10][11][12], porous carbons [13], nanofiber [14], and graphene [15], have been investigated for supercapacitor electrode materials.…”

Section: Introductionmentioning

confidence: 99%

Nitrogen-Enriched Carbon Nanofibers Derived from Polyaniline and Their Capacitive Properties

Gao

Ying

et al. 2018

Applied Sciences

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Nitrogen-doped carbon materials derived from N-containing conducting polymer have attracted significant attention due to their special electrochemical properties in the past two decades. Novel nitrogen-enriched carbon nanofibers (NCFs) have been prepared by one-step carbonization of p-toluene sulfonic acid (P-TSA) doped polyaniline (PANI) nanofibers, which are successfully synthesized via the rapid mixing oxidative polymerization at room temperature. NCFs with diameters ranging from 100 nm to 150 nm possess a highly specific surface area of 915 m 2 g −1 and a relatively rich nitrogen content of 7.59 at %. Electrochemical measurements demonstrate that NCFs have high specific capacitance (172 F g −1 , 2 mV s −1 ) and satisfactory cycling stability (89% capacitance retention after 5000 cycles). The outstanding properties affirm that NCFs can be promising candidates for supercapacitor electrode materials. Interestingly, the carbonization of PANI opens the possibility to tailor the morphology of resulting nitrogen-enriched carbon materials by controlling the reaction conditions of PANI synthesis. products of PANI (15 wt % N, 79 wt % C) have been successfully employed in other articles as electrode materials [29][30][31][32][33][34][35][36]. However, most of the present reported PANI-derived carbon materials are irregular and agglomerate. Furthermore, the PANI-derived carbon materials by one-step carbonization usually have a low specific surface area while the chemical activation process is complex and increases costs. Recently, one-dimensional (1D) nanostructured PANI, such as nanofibers, nanotubes, nanowires, and nanorods, have attracted intensive attention for their unique structure, properties, and new potential applications [37][38][39][40][41][42]. Various methods, such as hard or soft template [32,39], interfacial polymerization [40], and rapid mixing polymerization, have been used to tailor the morphology of the products in the chemical oxidative polymerization. Compared with other methods, the rapid mixing polymerization method is the most common non-template route to produce PANI nanofibers owing to its simplicity, cost effectiveness, being environmental friendly, and pure production [43][44][45][46][47].Furthermore, the molecular structure and functional groups of doped acids also influence the morphology and structure of resulting PANI particles [28,41,[47][48][49][50][51][52]. Chutia's work investigates the effect of organic camphorsulfonic acid (CSA) and inorganic hydrochloric acid (HCl) on the structures and conductivity of polyaniline, and the discovery indicates that PANI nanorods doped with CSA produce more uniform and aligned structures [50]. Organosulfonic acid possessing long alkyl-chain sulfonic acids, such as p-toluenesulfonic acid (P-TSA), β-naphtalenesulfonic acid (NSA), camphorsulfonic acid (CSA), and dodecyl benzene sulfonic acid (DBSA), have already been explored by some researchers [49,51]. P-TSA (the molecular structural formula is p-CH 3 C 6 H 4 SO 3 H) is a non-oxidizing organic acid, so...

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“…Recently, transition-metal fluorides (TMFs) have been used as cathode materials in LIBs, and achieved high capacities and high energy densities [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]. The oxidation state of the metal in TMFs involves the transfer of multiple electrons/lithium ions per formula unit leading to higher theoretical volumetric capacity (up to ≈2200 mAh/cm 3 ) and higher theoretical potential (up to ≈3.5 V vs Li/Li + ).…”

Section: Introductionmentioning

confidence: 99%

“…Recently, several attempts to prepare nano-sized metal fluorides using pyrolysis, precipitation and supercritical-fluid technologies showed poor electrochemical performance after few cycles due to the inhomogeneity of structure and the composition [11][12][13][14][15][16][25][26][27][28][29]. More recently, Wang et al [30] have demonstrated that the incorporation of CoF 2 nanoparticles inside CNTs fabric prepared in situ by annealing of CNT-CoSiF 6 composites enhanced the capacity of Li-ion batteries; however the capacity did not reach the theoretical value.…”

Section: Introductionmentioning

confidence: 99%

Surfactant-aided impregnation of MnF2 into CNT fabrics as cathode material with high electrochemical performance for lithium ion batteries

2018

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MnF 2 infiltrated-CNT fabrics was prepared by surfactant-aided impregnation of MnSiF 6 precursors in acidtreated CNT fabric followed by annealing MnSiF 6 -loaded CNT fabric. The structural and morphological characterizations by X-ray diffraction, scanning electron microscopy (SEM), and transmission electron microscopy (TEM) confirmed the formation of MnF 2 nanoparticles (average size: 20-30 nm) within CNT fabric structure. Galvanostatic charge-discharge tests of CNT-MnF 2 nanocomposite fabrics showed excellent electrochemical performance and good cycle stability between 0.4 and 4.0 V vs Li/Li + . A specific capacity of 388 mAh/g was measured at 0.1C for CNT-MnF 2 fabric with 70% MnF 2 loading after 100 cycles. Stable cyclability and good rate performance were obtained at high charge-discharge cycling rates. MnF 2 loading largely affect the performance of MnF 2 infiltrated-CNT fabrics cathodes when lower than 70% MnF 2 loaded-CNT fabrics were prepared. It can be concluded that nano-sized active materials infiltrated inside conductive carbon matrix in optimized content can lead to rapid kinetics and stable performance for flexible metal fluoride-based cathode materials.

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Self nitrogen-doped carbon nanotubes as anode materials for high capacity and cycling stability lithium-ion batteries

Cited by 25 publications

References 44 publications

π‐Plasmon absorbance films of carboxylic functionalized CNTs coupled with renewable PGP platforms

π‐Plasmon absorbance films of carboxylic functionalized CNTs coupled with renewable PGP platforms

Nitrogen-Enriched Carbon Nanofibers Derived from Polyaniline and Their Capacitive Properties

Surfactant-aided impregnation of MnF2 into CNT fabrics as cathode material with high electrochemical performance for lithium ion batteries

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