Preparation of carbon-coated lithium iron phosphate/titanium nitride for a lithium-ion supercapacitor

Xie, Yibing; Song, Fei; Chi, Xia; Du, Hongxiu

doi:10.1039/c4nj01169d

Cited by 38 publications

(26 citation statements)

References 38 publications

(37 reference statements)

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“…Figure c clearly illustrates the lithium–ion charge–discharge process in this 3D structure, where the excellent capacitance and rate‐capability were ascribed to the carbon modification and nanonetwork structure of TiN nanowires. The open nanoporous network structure could favor an abundant adsorption of lithium‐ions and the fast insertion–extraction of lithium‐ion . For the strategy of ion substitution/doping, Secchiaroli et al introduced Ni into the Li 3 V 2x Ni x (PO 4 ) 3 (LVP) crystal structure, which is able to reduce the inorganic nanoparticle dimension, thus the charge‐transfer resistance at the electrolyte/electrode interface becomes lower, and therefore give rise to a higher Li‐ion diffusion ability.…”

Section: Metal Phosphidesmentioning

confidence: 99%

Section: Metal Phosphidesmentioning

confidence: 99%

“…Lithium and sodium metal phosphates have been developed as a class of materials as the cathodes in lithium-ion/ sodium-ion batteries. [146] They provide a particularly stable open 3D framework beneficial for long-term cycling and fast ion motion. Also, their operating voltages versus Li (or Na) are generally high, thanks to the inductive effect of the (PO 4 ).…”

Section: Alkali Transition Metal Phosphatesmentioning

confidence: 99%

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Metal Phosphides and Phosphates‐based Electrodes for Electrochemical Supercapacitors

Elshahawy

Guan

et al. 2017

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Phosphorus compounds, such as metal phosphides and phosphates have shown excellent performances and great potential in electrochemical energy storage, which are demonstrated by research works published in recent years. Some of these metal phosphides and phosphates and their hybrids compare favorably with transition metal oxides/hydroxides, which have been studied extensively as a class of electrode materials for supercapacitor applications, where they have limitations in terms of electrical and ion conductivity and device stability. To be specific, metal phosphides have both metalloid characteristics and good electric conductivity. For metal phosphates, the open-framework structures with large channels and cavities endow them with good ion conductivity and charge storage capacity. In this review, we present the recent progress on metal phosphides and phosphates, by focusing on their advantages/disadvantages and potential applications as a new class of electrode materials in supercapacitors. The synthesis methods to prepare these metal phosphides/phosphates are looked into, together with the scientific insights involved, as they strongly affect the electrochemical energy storage performance. Particular attentions are paid to those hybrid-type materials, where strong synergistic effects exist. In the summary, the future perspectives and challenges for the metal phosphides, phosphates and hybrid-types are proposed and discussed.

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Section: Metal Phosphidesmentioning

confidence: 99%

Section: Metal Phosphidesmentioning

confidence: 99%

Section: Alkali Transition Metal Phosphatesmentioning

confidence: 99%

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Metal Phosphides and Phosphates‐based Electrodes for Electrochemical Supercapacitors

Elshahawy

Guan

et al. 2017

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“…TiO 2 , owing to its high photocatalytic activity, has been extensively used in the photocatalytic degradation of organic pollutants . Recently, well‐designed TiO 2 or TiN and its composites with nanotube, nanopore, or nanorod structure have attracted intensive interests to act as the versatile supporting materials in the area of electrochemical and analytical applications . The nanostructured TiO 2 and Au or Ag have been reported to investigate the surface plasmonic properties .…”

Section: Introductionmentioning

confidence: 99%

Visible‐light‐driven self‐cleaning SERS substrate of silver nanoparticles and graphene oxide decorated nitrogen‐doped titania nanotube array

Xie

Meng

2016

Surface & Interface Analysis

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Graphene oxide (GO) and silver nanoparticles (Ag NPs) sequentially decorated nitrogen‐doped titania nanotube array (N‐TiO2 NTA) had been designed as visible‐light‐driven self‐cleaning surface‐enhanced Raman scattering (SERS) substrate for a recyclable SERS detection application. N‐TiO2 NTA was fabricated by anodic oxidation and then doping nitrogen treatment in ammonia atmosphere, acting as a visible‐light‐driven photocatalyst and supporting substrate. Ag/GO/N‐TiO2 NTA was prepared by decorating GO monolayer through an impregnation process and then depositing Ag NPs through a polyol process on the surface of N‐TiO2 NTA, acting as the collection of organic molecule and Raman enhancement. The SERS activity of Ag/GO/N‐TiO2 NTA was evaluated using methyl blue as an organic probe molecule, revealing the analytical enhancement factor of 4.54 × 104. Ag/GO/N‐TiO2 NTA was applied as active SERS substrate to determine a low‐affinity organic pollutant of bisphenol A, revealing the detection limit of as low as 5 × 10−7 m. Ag/GO/N‐TiO2 NTA could also achieve self‐cleaning function for a recycling utilization through visible‐light‐driven photocatalytic degradation of the adsorbed organic molecules. Ag/GO/N‐TiO2 NTA has been successfully reused for five times without an obvious decay in accuracy and sensitivity for organic molecule detection. The unique properties of this SERS substrate enable it to have a promising application for the sensitive and recyclable SERS detection of low‐affinity organic molecules. Copyright © 2016 John Wiley & Sons, Ltd.

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“…Normally, TiO 2 NTA can be modified by conductive polymers or carbon materials to improve the electrical conductivity . Our previous work showed that TiN NTA had very good conductivity for different electrochemical applications . Alternatively, it is reported that N‐TiO 2 shows higher conductivity compared with TiO 2 .…”

Section: Introductionmentioning

confidence: 99%

Bioelectrocatalytic performance of glucose oxidase/nitrogen-doped titania nanotube array enzyme electrode

Xie

Wang

2015

J. Chem. Technol. Biotechnol.

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BACKGROUND The substrate materials of enzyme electrodes strongly affect bioelectrocatalytic activity. TiO2 nanotube arrays (NTAs) show good affinity to glucose oxidase (GOx) but low conductivity. TiN NTAs show good conductivity but low affinity to GOx. Nitrogen‐doped TiO2 (N‐TiO2) NTA with good hydrophilicity and conductivity was designed to prepare a GOx/N‐TiO2 NTA enzyme electrode to promote bioelectrocatalytic performance. RESULTS N‐TiO2 NTA had a well‐ordered nanoarray structure with slightly distorted pore mouth and wrinkled nanotube wall. N‐TiO2 NTA exhibited decreased charge transfer resistance and similar contact angle to TiO2 NTA, presenting high electrical conductivity and good hydrophilicity. GOx/N‐TiO2 NTA exhibited highly increased current response at a potential of −0.45 V, presenting good bioelectrocatalysis towards glucose. A GOx/N‐TiO2 NTA enzyme electrode was used to fabricate a glucose biosensor, showing a high sensitivity of 733.17 µA mM−1 cm−2 and a linear range of 0.05–0.85 mmol L−1 and low detection limit of 2.9 µmol L−1 for glucose determination. It exhibited high selectivity in the presence of common interfering substances and was used to determine glucose in serum. It also had good reproducibility and long‐time storage stability. In addition, the GOx/N‐TiO2 NTA enzyme electrode was used to fabricate a glucose fuel cell, showing maximum power density of 23.92 µW cm−2 as well as good bioelectrocatalytic stability. CONCLUSION High bioelectrocatalytic activity and stability of GOx/N‐TiO2 NTA proved that N‐TiO2 NTA could act as a reasonable supporting substrate material for enzyme electrodes for various bioelectrocatalytic applications. © 2015 Society of Chemical Industry

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Preparation of carbon-coated lithium iron phosphate/titanium nitride for a lithium-ion supercapacitor

Abstract: Carbon-coated lithium iron phosphate supported on a titanium nitride nanowire network was designed as the electrode material for a lithium-ion supercapacitor.

Cited by 38 publications

References 38 publications

Metal Phosphides and Phosphates‐based Electrodes for Electrochemical Supercapacitors

Metal Phosphides and Phosphates‐based Electrodes for Electrochemical Supercapacitors

Visible‐light‐driven self‐cleaning SERS substrate of silver nanoparticles and graphene oxide decorated nitrogen‐doped titania nanotube array

Bioelectrocatalytic performance of glucose oxidase/nitrogen-doped titania nanotube array enzyme electrode

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