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Title: Rational Design of Nickel Hydroxide-Based Nanocrystals on Graphene for Ultrafast Energy Storage

Authors:
ORCiD logo [1];  [1];  [2];  [1];  [3];  [1];  [1];  [1];  [4];  [1];  [1];  [3]; ORCiD logo [1]
  1. School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta GA 30332-0245 USA
  2. School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta GA 30332-0245 USA, Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen Fujian 361005 China
  3. Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen Fujian 361005 China
  4. School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta GA 30332-0245 USA, New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou 510006 China
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1413796
Grant/Contract Number:
AC02-05CH11231
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Advanced Energy Materials
Additional Journal Information:
Related Information: CHORUS Timestamp: 2017-12-18 03:46:42; Journal ID: ISSN 1614-6832
Publisher:
Wiley Blackwell (John Wiley & Sons)
Country of Publication:
Germany
Language:
English

Citation Formats

Zhao, Bote, Zhang, Lei, Zhang, Qiaobao, Chen, Dongchang, Cheng, Yong, Deng, Xiang, Chen, Yu, Murphy, Ryan, Xiong, Xunhui, Song, Bo, Wong, Ching-Ping, Wang, Ming-Sheng, and Liu, Meilin. Rational Design of Nickel Hydroxide-Based Nanocrystals on Graphene for Ultrafast Energy Storage. Germany: N. p., 2017. Web. doi:10.1002/aenm.201702247.
Zhao, Bote, Zhang, Lei, Zhang, Qiaobao, Chen, Dongchang, Cheng, Yong, Deng, Xiang, Chen, Yu, Murphy, Ryan, Xiong, Xunhui, Song, Bo, Wong, Ching-Ping, Wang, Ming-Sheng, & Liu, Meilin. Rational Design of Nickel Hydroxide-Based Nanocrystals on Graphene for Ultrafast Energy Storage. Germany. doi:10.1002/aenm.201702247.
Zhao, Bote, Zhang, Lei, Zhang, Qiaobao, Chen, Dongchang, Cheng, Yong, Deng, Xiang, Chen, Yu, Murphy, Ryan, Xiong, Xunhui, Song, Bo, Wong, Ching-Ping, Wang, Ming-Sheng, and Liu, Meilin. 2017. "Rational Design of Nickel Hydroxide-Based Nanocrystals on Graphene for Ultrafast Energy Storage". Germany. doi:10.1002/aenm.201702247.
@article{osti_1413796,
title = {Rational Design of Nickel Hydroxide-Based Nanocrystals on Graphene for Ultrafast Energy Storage},
author = {Zhao, Bote and Zhang, Lei and Zhang, Qiaobao and Chen, Dongchang and Cheng, Yong and Deng, Xiang and Chen, Yu and Murphy, Ryan and Xiong, Xunhui and Song, Bo and Wong, Ching-Ping and Wang, Ming-Sheng and Liu, Meilin},
abstractNote = {},
doi = {10.1002/aenm.201702247},
journal = {Advanced Energy Materials},
number = ,
volume = ,
place = {Germany},
year = 2017,
month =
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on December 18, 2018
Publisher's Accepted Manuscript

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  • Here, the rational design of improved electrode-electrolyte interfaces (EEI) for energy storage is critically dependent on a molecular-level understanding of ionic interactions and nanoscale phenomena. The presence of non-redox active species at EEI has been shown to strongly influence Faradaic efficiency and long-term operational stability during energy storage processes. Herein, we achieve substantially higher performance and long-term stability of EEI prepared with highly-dispersed discrete redox-active cluster anions (50 ng of pure ~0.7 nm size molybdenum polyoxometalate anions (POM) anions on 25 mg (≈ 0.2 wt%) carbon nanotube (CNT) electrodes) by complete elimination of strongly coordinating non-redox species through ion soft-landingmore » (SL). For the first time, electron microscopy provides atomically-resolved images of individual POM species directly on complex technologically relevant CNT electrodes. In this context, SL is established as a versatile approach for the controlled design of novel surfaces for both fundamental and applied research in energy storage.« less
  • In this paper, we demonstrate excellent pseudo-capacitance behavior of nickel-aluminum double hydroxide microspheres (NiAl DHM) synthesized by a facile solvothermal technique using tertbutanol as a structure-directing agent on nickel foam-graphene (NF-G) current collector as compared to use of nickel foam current collector alone. The structure and surface morphology were studied by X-ray diffraction analysis, Raman spectroscopy and scanning and transmission electron microscopies respectively. NF-G current collector was fabricated by chemical vapor deposition followed by an ex situ coating method of NiAl DHM active material which forms a composite electrode. The pseudocapacitive performance of the composite electrode was investigated by cyclicmore » voltammetry, constant charge–discharge and electrochemical impedance spectroscopy measurements. The composite electrode with the NF-G current collector exhibits an enhanced electrochemical performance due to the presence of the conductive graphene layer on the nickel foam and gives a specific capacitance of 1252 F g{sup −1} at a current density of 1 A g{sup −1} and a capacitive retention of about 97% after 1000 charge–discharge cycles. This shows that these composites are promising electrode materials for energy storage devices.« less
  • Graphical abstract: The microwave heating reflux approach was developed for the fabrication of nickel–cobalt layered double hydroxide ultrathin nanoflakes decorated on graphene sheets, in which ammonia and ethanol were used as the precipitator and medium for the synthesis. The obtained composite shows a 3D flowerclusters morphology with nanonetwork structure and largely enhanced supercapacitive performance. - Highlights: • The paper reported the microwave synthesis of nickel–cobalt layered double hydroxide/graphene composite. • The novel synthesis method is rapid, green, efficient and can be well used to the mass production. • The as-synthesized composite offers a 3D flowerclusters morphology with nanonetwork structure. •more » The composite offers excellent supercapacitive performance. • This study provides a promising route to design and synthesis of advanced graphene-based materials with the superiorities of time-saving and cost-effective characteristics. - Abstract: The study reported a novel microwave heating reflux method for the fabrication of nickel–cobalt layered double hydroxide ultrathin nanoflakes decorated on graphene sheets (GS/NiCo-LDH). Ammonia and ethanol were employed as precipitant and reaction medium for the synthesis, respectively. The resulting GS/NiCo-LDH offers a 3D flowerclusters morphology with nanonetwork structure. Due to the greatly enhanced rate of electron transfer and mass transport, the GS/NiCo-LDH electrode exhibits excellent supercapacitive performances. The maximum specific capacitance was found to be 1980.7 F g{sup −1} at the current density of 1 A g{sup −1}. The specific capacitance can remain 1274.7 F g{sup −1} at the current density of 15 A g{sup −1} and it has an increase of about 2.9% after 1500 cycles. Moreover, the study also provides a promising approach for the design and synthesis of metallic double hydroxides/graphene hybrid materials with time-saving and cost-effective characteristics, which can be potentially applied in the energy storage/conversion devices.« less
  • An ultrafast kicker system is being developed for the energy recovery linac (ERL) based electron circulator cooler ring (CCR) in the proposed Jefferson Lab Electron Ion Collider (JLEIC, previously named MEIC). In the CCR, the injected electron bunches can be recirculated while performing ion cooling for 10–30 turns before the extraction, thus reducing the recirculation beam current in the ERL to 1/10–1/30 (150mA–50 mA) of the cooling beam current (up to 1.5 A). Assuming a bunch repetition rate of 476.3 MHz and a recirculating factor of 10 in the CCR, the kicker is required to operate at a pulse repetitionmore » rate of 47.63 MHz with pulse width of around 2 ns, so that only every 10th bunch in the CCR will experience a transverse kick while the rest of the bunches will not be disturbed. Such a kicker pulse can be synthesized by ten harmonic modes of the 47.63 MHz kicker pulse repetition frequency, using up to four quarter wavelength resonator (QWR) based deflecting cavities. In this paper, several methods to synthesize such a kicker waveform will be discussed and a comparison of their beam dynamics performance is made using ELEGANT. Four QWR cavities are envisaged with high transverse shunt impedance requiring less than 100 W of total rf power for a Flat-Top kick pulse. Multipole fields due to the asymmetry of this type of cavity are analyzed. The transverse emittance growth due to the sextupole component is simulated in ELEGANT. In conclusion, off-axis injection and extraction issues and beam optics using a multicavity kick-drift scheme will also be discussed.« less
  • An ultrafast kicker system is being developed for the energy recovery linac (ERL) based electron circulator cooler ring (CCR) in the proposed Jefferson Lab Electron Ion Collider (JLEIC, previously named MEIC). In the CCR, the injected electron bunches can be recirculated while performing ion cooling for 10–30 turns before the extraction, thus reducing the recirculation beam current in the ERL to 1/10–1/30 (150mA–50 mA) of the cooling beam current (up to 1.5 A). Assuming a bunch repetition rate of 476.3 MHz and a recirculating factor of 10 in the CCR, the kicker is required to operate at a pulse repetitionmore » rate of 47.63 MHz with pulse width of around 2 ns, so that only every 10th bunch in the CCR will experience a transverse kick while the rest of the bunches will not be disturbed. Such a kicker pulse can be synthesized by ten harmonic modes of the 47.63 MHz kicker pulse repetition frequency, using up to four quarter wavelength resonator (QWR) based deflecting cavities. In this paper, several methods to synthesize such a kicker waveform will be discussed and a comparison of their beam dynamics performance is made using ELEGANT. Four QWR cavities are envisaged with high transverse shunt impedance requiring less than 100 W of total rf power for a Flat-Top kick pulse. Multipole fields due to the asymmetry of this type of cavity are analyzed. The transverse emittance growth due to the sextupole component is simulated in ELEGANT. In conclusion, off-axis injection and extraction issues and beam optics using a multicavity kick-drift scheme will also be discussed.« less