Doping cobalt hydroxide nanowires for better supercapacitor performance

Liu, Huajun; Ho, Kuan Hung; Hu, Yating; Qin, Ke; Mao, Lu; Wang, John

doi:10.1016/j.actamat.2014.09.055

Cited by 30 publications

(9 citation statements)

References 33 publications

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“…The maximum specific capacitance of 2556 F g −1 is mainly due to the good conductivity of PANI and the introduction of CeO 2 , which is beneficial to the specific surface area and energy storage capacity (Figure 7C). In addition, other RE‐doped TMHs or REOs/TMHs‐based hybrid electrodes have also been partially reported, including Ni 4 Yb(OH) 10 NO 3 ⋅ 3H 2 O, [82] Y‐doped α‐Ni(OH) 2 , [94] Ce‐doped α‐Co(OH) 2 , [188] La‐doped β‐Ni(OH) 2 /CNTs, [189] La‐doped Ni 3 (NO 3 ) 2 (OH) 4 , [190] Y‐doped Cu(OH) 2 , [193] LaCO 3 OH−Ni(OH) 2 /graphene hierarchical composite, [194] NiFeCoPrO/Au, [195] and La−Sr doped Co(OH) 2 nanowires [196] . Recent research is shown in Table 4.…”

Section: Re Compounds and Nanocomposites For Scs Applicationmentioning

confidence: 99%

“…In addition, other RE-doped TMHs or REOs/TMHs-based hybrid electrodes have also been partially reported, including Ni 4 Yb-(OH) 10 NO 3 • 3H 2 O, [82] Y-doped α-Ni(OH) 2 , [94] Ce-doped α-Co-(OH) 2 , [188] La-doped β-Ni(OH) 2 /CNTs, [189] La-doped Ni 3 (NO 3 ) 2 (OH) 4 , [190] Y-doped Cu(OH) 2 , [193] LaCO 3 OHÀ Ni(OH) 2 /graphene hierarchical composite, [194] NiFeCoPrO/Au, [195] and LaÀ Sr doped Co(OH) 2 nanowires. [196] Recent research is shown in Table 4.…”

Section: Re/tmh Compositesmentioning

confidence: 99%

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Rare Earth‐Based Nanomaterials for Supercapacitors: Preparation, Structure Engineering and Application

Zhou

2022

ChemSusChem

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Supercapacitors (SCs) can effectively alleviate problems such as energy shortage and serious greenhouse effect. The properties of electrode materials directly affect the performance of SCs. Rare earth (RE) is known as “modern industrial vitamins”, and their functional materials have been listed as key strategic materials. In the past few years, the number of scientific reports on RE‐based nanomaterials for SCs has increased rapidly, confirming that adding RE elements or compounds to the host electrode materials with various nanostructured morphologies can greatly enhance their electrochemical performance. Although RE‐based nanomaterials have made rapid progress in SCs, there are very few works providing a comprehensive survey of this field. In view of this, a comprehensive overview of RE‐based nanomaterials for SCs is provided here, including the preparation methods, nanostructure engineering, compounds, and composites, along with their capacitance performances. The structure–activity relationships are discussed and highlighted. Meanwhile, the future challenges and perspectives are also pointed out. This Review can not only provide guidance for the further development of SCs but also arouse great interest in RE‐based nanomaterials in other research fields such as electrocatalysis, photovoltaic cells, and lithium batteries.

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Section: Re Compounds and Nanocomposites For Scs Applicationmentioning

confidence: 99%

Section: Re/tmh Compositesmentioning

confidence: 99%

Rare Earth‐Based Nanomaterials for Supercapacitors: Preparation, Structure Engineering and Application

Zhou

2022

ChemSusChem

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“…In biactive metal LDH electrode materials, the relative proportion of each metal plays an important role in controlling the morphology,s tructure, crystal phase, and capacitivep erformance. In many cases, Co 2 + tends to give rise to the formation of aN Wm orphology, [39] whereas Ni 2 + tends to give rise to the nanosheet morphology,i furea is present during the hydrothermalt reatment process. [40] Therefore, if Co 2 + and Ni 2 + are simultaneously added to the mother solution to form NiCo hydroxideo rL DH, different morphologies can be produced; these morphologies are also dependento nt he crystal phase of the final product.…”

Section: Biactive-metal Ions In the Host Layermentioning

confidence: 99%

Recent Progress in Two‐Dimensional Layered Double Hydroxides and Their Derivatives for Supercapacitors

et al. 2020

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High‐performance supercapacitors have attracted great attention due to their high power, fast charging/discharging, long lifetime, and high safety. However, the generally low energy density and overall device performance of supercapacitors limit their applications. In recent years, the design of rational electrode materials has proven to be an effective pathway to improve the capacitive performances of supercapacitors. Layered double hydroxides (LDHs), have shown great potential in new‐generation supercapacitors, due to their unique two‐dimensional layered structures with a high surface area and tunable composition of the host layers and intercalation species. Herein, recent progress in LDH‐based, LDH‐derived, and composite‐type electrode materials targeted for applications in supercapacitors, by tuning the chemical/metal composition, growth morphology, architectures, and device integration, is reviewed. The complicated relationships between the composition, morphology, structure, and capacitive performance are presented. A brief projection is given for the challenges and perspectives of LDHs for energy research.

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“…The effect on the capacitive properties and electrochemical reaction mechanism of Sr 0 in the samples were discussed here. First, Sr has only one oxidation state and was not involved in the redox reactions and thus would not contribute to the pseudocapacitance [45,46]. Compared with SBO-1 : 1, without any different redox peaks could be observed of SBO-1 : 3 and SBO-1 : 2 in the same potential window through CV.…”

Section: Journal Of Nanomaterialsmentioning

confidence: 99%

Fabrication of Strontium Bismuth Oxides as Novel Battery-Type Electrode Materials for High-Performance Supercapacitors

Han

Liu

et al. 2018

Journal of Nanomaterials

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A simple and efficient process method for the preparation of strontium bismuth oxides (SBOs) via an impregnation-calcination method is presented. The synthesized active materials are characterized using X-ray diffraction, scanning electron microscopy, and X-ray photoelectron spectroscopy. The electrochemical performance of the as-synthesized SBO samples is observed to decrease gradually as the strontium content is increased from 25% to 50%. The SBO sample with a Sr/Bi ratio of 1 : 3 shows the highest specific capacitance of 1228.7 F g−1 (specific capacity of 204.8 mAh g−1) at a current density of 1 A g−1 and a good cycling stability (75.1%) over 3000 charge-discharge cycles. The improved performance of the supercapacitors can be attributed to the unique structural features resulting from the addition of appropriate portions of Sr, which supports high electron conductivity and rapid ion/electron transport within the electrode and at the electrode/electrolyte interface. All the results show that the SBOs have considerable potential for use as high-performance battery-type electrodes in supercapacitors.

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Doping cobalt hydroxide nanowires for better supercapacitor performance

Cited by 30 publications

References 33 publications

Rare Earth‐Based Nanomaterials for Supercapacitors: Preparation, Structure Engineering and Application

Rare Earth‐Based Nanomaterials for Supercapacitors: Preparation, Structure Engineering and Application

Recent Progress in Two‐Dimensional Layered Double Hydroxides and Their Derivatives for Supercapacitors

Fabrication of Strontium Bismuth Oxides as Novel Battery-Type Electrode Materials for High-Performance Supercapacitors

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