Few-layered CoHPO4·3H2O ultrathin nanosheets for high performance of electrode materials for supercapacitors

Pang, Huan; Wang, Shaomei; Shao, Weifang; Zhao, Shanshan; Yan, Bo; Li, Xinran; Li, Sujuan; Chen, Jing; Du, Weimin

doi:10.1039/c3nr01460f

Cited by 117 publications

(59 citation statements)

References 58 publications

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“…9 Inspired by this work, various phosphates containing different cations or cation combinations like nickel, cobalt, ammonium and sodium, have been synthesized by hydrothermal method. [10][11][12][13][14][15] Most metal phosphates have a layered structure. This unique structure characteristic is desired for applications such as energy storage devices which require fast transport of ions.…”

Section: Introductionmentioning

confidence: 99%

High capacitive amorphous barium nickel phosphate nanofibers for electrochemical energy storage

et al. 2016

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Ultrafine amorphous Ba x Ni 3Àx (PO 4 ) 2 (0 < x < 3) nanofibers are synthesized for the first time through a facile cation exchange reaction method at room temperature. Both the phase transformation and growing process of the nanofibers are systematically investigated. A dramatic morphology transformation from Ba 3 (PO 4 ) 2 flakes to Ba x Ni 3Àx (PO 4 ) 2 nanofibers with the addition of Ni 2+ ions is observed. The as-prepared nanofiber material shows a diameter less than 10 nanometers and length of several micrometers. The material possesses a BET surface area of 64.8 m 2 g À1 . When it is used as a supercapacitor electrode material, specific capacitances as high as 1058 F g À1 at 0.5 A g À1 and 713 F g À1 at 5 A g À1 are achieved, indicating the promising energy storage property of this material.

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Section: Introductionmentioning

confidence: 99%

High capacitive amorphous barium nickel phosphate nanofibers for electrochemical energy storage

et al. 2016

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“…[45] To begin with, for example, due to the key role of EG and the proper control of reaction time, we succeeded getting the ultrathin cobalt phosphate nanosheets (thickness: 2.7 nm) via solvothermal synthesis. [46] On one hand, the EG molecules had influence on crystallization and reconstruction of ultrathin CoHPO 4 * 3H 2 O. On the contrary, in the same condition (except the solvent), what could be obtained was the Co 11 (HPO 3 ) 8 (OH) 6 micro-architecture by applying deionized water as solvent instead of EG.…”

Section: à2mentioning

confidence: 98%

Our Contributions in Nanochemistry for Antibiosis, Electrocatalyst and Energy Storage Materials

Zhang

Wang

et al. 2017

The Chemical Record

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This account mainly introduces and reviews our recent progress in three projects: antibacterial nanomaterial, electrocatalyst for detecting and electrode nanomaterial of energy storage device, especially the supercapacitor. Besides, our thought and idea about the design, fabrication and application of corresponding nanomaterials are sketched throughout the whole article in order to reveal the structure-function relationship and corresponding mechanism. In the end, we tend to attach importance to the bottleneck of nanomaterial's development and put forward our understanding in this field.

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“…The combination of different precursors, mineralizers, additives and even solvents, can lead to different phases and morphologies for transition metal phosphates. Therefore, different structures can be prepared via hydrothermal/solvothermal process, including one‐dimensional nanorods/nanowires, two‐dimensional nanosheets/nanoflakes, and even some micro‐sized structures …”

Section: Metal Phosphidesmentioning

confidence: 99%

“…Phosphorus is a multivalent nonmetal of the nitrogen group, which is also one of the most useful and well‐established donor atoms in coordination chemistry . There is a large group of phosphorus compounds, including metal phosphides and metal phosphates, some of which have been studied for better performing electrodes for energy storage and other applications, such as in lithium ion batteries, supercapacitors, and catalysts . Indeed, phosphorus can react with most of the elements in the periodic table to form a diverse class of phosphides .…”

Section: Introductionmentioning

confidence: 99%

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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Few-layered CoHPO4·3H2O ultrathin nanosheets for high performance of electrode materials for supercapacitors

Cited by 117 publications

References 58 publications

High capacitive amorphous barium nickel phosphate nanofibers for electrochemical energy storage

High capacitive amorphous barium nickel phosphate nanofibers for electrochemical energy storage

Our Contributions in Nanochemistry for Antibiosis, Electrocatalyst and Energy Storage Materials

Metal Phosphides and Phosphates‐based Electrodes for Electrochemical Supercapacitors

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