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81. Impact of nanofluidic electrolyte on the energy storage capacity in vanadium redox flow battery

Author:
Kim, Jungmyung; Park, Heesung
Source:
Energy 2018 v.160 pp. 192-199
ISSN:
0360-5442
Subject:
batteries; carbon nanotubes; commercialization; electrochemistry; electrodes; electrolytes; energy; nanofluids; redox reactions; vanadium
Abstract:
... The limitation of energy storage capacity in vanadium redox flow battery impedes further commercialization of the battery. The concept proposed in this study is to overcome the limit by using nanofluidic electrolytes. Multi-walled carbon nanotubes (MWCNTs) are chosen to disperse in electrolytes due to their high surfaces to volume ratio. Nanofluid electrolytes with three electrolyte weight percent ...
DOI:
10.1016/j.energy.2018.06.221

82. Synthesis of nanomaterials from various wastes and their new age applications

Author:
Samaddar, Pallabi; Ok, Yong Sik; Kim, Ki-Hyun; Kwon, Eilhann E.; Tsang, Daniel C.W.
Source:
Journal of cleaner production 2018 v.197 pp. 1190-1209
ISSN:
0959-6526
Subject:
batteries; borohydrides; carbon nanoparticles; carbon nanotubes; crop residues; energy; fluorescence; food waste; industrial wastes; nanosheets; remediation; solvents
Abstract:
... In this review, we scrutinized novel synthetic recipes for the fabrication of nanomaterials derived from various biowastes including crop residue, food waste, and industrial waste (e.g., spent battery waste and polythene waste). To this end, various pretreatment methods have been developed and applied for the conversion of wastes into useful forms of nanomaterials (e.g., metallic/carbon nanopartic ...
DOI:
10.1016/j.jclepro.2018.06.262

83. Combined Electron and Structure Manipulation on Fe-Containing N-Doped Carbon Nanotubes To Boost Bifunctional Oxygen Electrocatalysis

Author:
Zhao, Lei; Wang, Qichen; Zhang, Xinqi; Deng, Cheng; Li, Zhihong; Lei, Yongpeng; Zhu, Mengfu
Source:
ACS applied materials & interfaces 2018 v.10 no.42 pp. 35888-35895
ISSN:
1944-8252
Subject:
air; batteries; carbon; carbon nanotubes; catalysts; density functional theory; electric potential; electrochemistry; electrodes; energy conversion; oxygen; oxygen production; porous media
Abstract:
... It is a challenge to synthesize highly efficient nonprecious metal electrocatalysts with a well-defined nanostructure and rich active species. Herein, through electron engineering and structure manipulation simultaneously, we constructed Fe-embedded pyridinic-N-dominated carbon nanotubes (CNTs) on ordered mesoporous carbon, showing excellent oxygen reduction reaction activity (half-wave potential, ...
DOI:
10.1021/acsami.8b09197

84. Self-standing NASICON-type electrodes with high mass loading for fast-cycling all-phosphate sodium-ion batteries

Author:
Yu, Shicheng; Liu, Zigeng; Tempel, Hermann; Kungl, Hans; Eichel, Rüdiger-A.
Source:
Journal of materials chemistry 2018 v.6 no.37 pp. 18304-18317
ISSN:
2050-7496
Subject:
Raman spectroscopy; X-ray diffraction; annealing; batteries; carbon; carbon nanotubes; coatings; electric potential difference; electrochemistry; electrodes; electrolytes; fabrics; nuclear magnetic resonance spectroscopy; prototypes; transmission electron microscopy
Abstract:
... A scalable strategy has been realized to produce anodic NaTi₂(PO₄)₃ and cathodic Na₃V₂(PO₄)₃ supported on carbon nanotube fabrics (CNFs) as binder-free, metal current collector-free, carbon additive-free, bendable and self-standing electrodes for sodium-ion batteries. The NaTi₂(PO₄)₃ and Na₃V₂(PO₄)₃ particles are not only anchored on the surface of the CNFs but also uniformly embedded in the frame ...
DOI:
10.1039/c8ta07313a

85. Nitrogen-doped carbon nanotube sponge with embedded Fe/Fe₃C nanoparticles as binder-free cathodes for high capacity lithium–sulfur batteries

Author:
Liu, Yu-Si; Ma, Chao; Bai, Yu-Lin; Wu, Xue-Yan; Zhu, Qian-Chen; Liu, Xin; Liang, Xing-Hua; Wei, Xiao; Wang, Kai-Xue; Chen, Jie-Sheng
Source:
Journal of materials chemistry 2018 v.6 no.36 pp. 17473-17480
ISSN:
2050-7496
Subject:
batteries; carbon; carbon nanotubes; cathodes; coatings; electrochemistry; energy; melamine; nanoparticles; sulfur; synergism
Abstract:
... Lithium–sulfur (Li–S) batteries as a promising next-generation energy storage device have received increasing attention recently. However, it is still challenging to achieve high sulfur loading and high areal capacity in the cathodes. Herein, we design a composite of carbon-wrapped Fe/Fe₃C nanoparticles grown in a carbonized melamine sponge (Fe/Fe₃C@N-CNT) as a free-standing conductive framework a ...
DOI:
10.1039/c8ta06040a

86. Nickel Nanoparticles Encapsulated in Nitrogen-Doped Carbon Nanotubes as Excellent Bifunctional Oxygen Electrode for Fuel Cell and Metal–Air Battery

Author:
Zhong, Guoyu; Li, Simin; Xu, Shurui; Liao, Wenbo; Fu, Xiaobo; Peng, Feng
Source:
ACS sustainable chemistry & engineering 2018 v.6 no.11 pp. 15108-15118
ISSN:
2168-0485
Subject:
active sites; batteries; carbon; carbon nanotubes; catalysts; electrodes; encapsulation; fuel cells; melamine; nanoparticles; nickel; nitrogen; nitrogen content; oxygen; oxygen production; platinum; pyrolysis; ruthenium
Abstract:
... Developing low cost, high-performance, and durable bifunctional catalysts for oxygen reduction and oxygen evolution reactions is critical for a commercial application of fuel cells and metal–air batteries. Nitrogen-doped carbon nanotubes encapsulated nickel nanoparticles are prepared through a simple pyrolysis procedure with melamine and nickel chloride hexahydrate as precursors. The catalyst is f ...
DOI:
10.1021/acssuschemeng.8b03582

87. Three-Dimensional Interconnected Network Architecture with Homogeneously Dispersed Carbon Nanotubes and Layered MoS₂ as a Highly Efficient Cathode Catalyst for Lithium–Oxygen Battery

Author:
Hu, Anjun; Long, Jianping; Shu, Chaozhu; Liang, Ranxi; Li, Jiabao
Source:
ACS applied materials & interfaces 2018 v.10 no.40 pp. 34077-34086
ISSN:
1944-8252
Subject:
batteries; carbon nanotubes; catalysts; catalytic activity; cathodes; electrochemistry; ions; mass transfer; molybdenum disulfide; nanosheets; oxygen
Abstract:
... The structure and catalytic activity of the oxygen electrode determine the overall electrochemical performance of lithium–oxygen (Li–O₂) batteries. Here, a three-dimensional (3D) porous interconnected network structure combined with ultrathin MoS₂ nanosheets with homogeneously dispersed CNTs (MoS₂/CNTs) was synthesized via a one-step hydrothermal reaction. The 3D interconnected architecture can ef ...
DOI:
10.1021/acsami.8b06912

88. Development of High-Capacity Periodate Battery with Three-Dimensional-Printed Casing Accommodating Replaceable Flexible Electrodes

Author:
Wang, Zhiqian; Meng, Xianyang; Chen, Kun; Mitra, Somenath
Source:
ACS applied materials & interfaces 2018 v.10 no.36 pp. 30257-30264
ISSN:
1944-8252
Subject:
acetic acid; anodes; batteries; carbon nanotubes; cathodes; coatings; electrolytes; iodine; iron; nitrates; polytetrafluoroethylene; zinc
Abstract:
... We present the development of a novel battery comprising iron(III) periodate complex cathode and zinc anode. The periodate complex [H₇Fe₄(IO₄)₃O₈] was prepared by a precipitation reaction between Fe(NO₃)₃ and NaIO₄ and was used in battery development for the first time. The periodate complex along with 14% carbon nanotubes and a polytetrafluoroethylene coating formed a stable flexible electrode, a ...
DOI:
10.1021/acsami.8b05578

89. Polytriphenylamine Derivative and Carbon Nanotubes as Cathode Materials for High-Performance Polymer-Based Batteries C

Author:
Xu, Tao; Xiong, Jiaqi; Du, Xiaolong; Zhang, Yang; Song, Shaokun; Xiong, Chuanxi; Dong, Lijie
Source:
Journal of physical chemistry 2018 v.122 no.35 pp. 20057-20063
ISSN:
1932-7455
Subject:
acetylene; active sites; batteries; carbon nanotubes; cathodes; crosslinking; electrical properties; electrochemistry; free radicals; polymerization; polymers
Abstract:
... Composites of polytriphenylamine (PTPA), its novel derivative poly(4-carbamoyl-N,N-diphenylaniline-2,2,5,5-tetramethyl-pyrrolin-1-oxyl) (PTPA-PO), and multiwalled carbon nanotubes (CNTs) were synthesized by in situ polymerization. The characterization results showed that the CNTs were homogeneously distributed in the polymer matrix and formed a cross-linked conductive network. The electrical prope ...
DOI:
10.1021/acs.jpcc.8b03769

90. Hierarchical 3D macrosheets composed of interconnected in situ cobalt catalyzed nitrogen doped carbon nanotubes as superior bifunctional oxygen electrocatalysts for rechargeable Zn–air batteries

Author:
Li, Yapeng; Gao, Jingyu; Zhang, Fu; Qian, Qizhu; Liu, Yi; Zhang, Genqiang
Source:
Journal of materials chemistry 2018 v.6 no.32 pp. 15523-15529
ISSN:
2050-7496
Subject:
air; batteries; carbon nanotubes; catalysts; catalytic activity; cathodes; cobalt; electric potential difference; electrolytes; nitrogen; oxygen; potassium hydroxide; pyrolysis
Abstract:
... The oxygen reduction/evolution reactions (ORR/OER) are the cornerstone of metal–air batteries. The current central issue is to explore nonprecious metal based catalysts, especially bifunctional electrocatalysts with high activity for both ORR/OER processes with mild strategies. Herein, we report a facile yet scalable approach to fabricate hierarchical 3D macrosheets composed of interconnected in s ...
DOI:
10.1039/c8ta06057f

91. Systematic Exploration of the Role of a Modified Layer on the Separator in the Electrochemistry of Lithium–Sulfur Batteries

Author:
Tian, Wenzhi; Xi, Baojuan; Mao, Hongzhi; Zhang, Junhao; Feng, Jinkui; Xiong, Shenglin
Source:
ACS applied materials & interfaces 2018 v.10 no.36 pp. 30306-30313
ISSN:
1944-8252
Subject:
acetylene; active sites; batteries; carbon nanotubes; cathodes; electrochemistry; ions; lithium; polypropylenes; separators; sulfur
Abstract:
... As a significant constituent of lithium–sulfur batteries, the separator also exerts a considerable effect on the performance of the sulfur cathode. In our work, the mixture of acetylene black and multiwalled carbon nanotubes is uniformly applied onto the commercial polypropylene membranes to attain the modified separators. While investigating different samples, the underlying influence of the coat ...
DOI:
10.1021/acsami.8b08438

92. Instability of a Noncrystalline NaO2 Film in Na–O2 Batteries: The Controversial Effect of the RuO2 Catalyst C

Author:
Fathi Tovini, Mohammad; Hong, Misun; Park, Jiwon; Demirtaş, Merve; Toffoli, Daniele; Ustunel, Hande; Byon, Hye Ryung; Yılmaz, Eda
Source:
Journal of physical chemistry 2018 v.122 no.34 pp. 19678-19686
ISSN:
1932-7455
Subject:
batteries; carbon nanotubes; catalysts; catalytic activity; cellular microenvironment; chemical degradation; crystal structure; crystals; electrochemistry; electrodes; electrolytes; nanoparticles; oxygen; oxygen production; sodium
Abstract:
... The unique electrochemical and chemical features of sodium–oxygen (Na–O₂) batteries distinguish them from the lithium–oxygen (Li–O₂) batteries. NaO₂ as the main discharge product is unstable in the cell environment and chemically degrades, which triggers side products’ formation and charging potential increment. In this study, RuO₂ nanoparticles dispersed on carbon nanotubes (CNTs) are used as the ...
DOI:
10.1021/acs.jpcc.8b06024

93. Aligned N-doped carbon nanotube bundles with interconnected hierarchical structure as an efficient bi-functional oxygen electrocatalyst

Author:
Tian, Weiliang; Wang, Cheng; Chen, Ruida; Cai, Zhao; Zhou, Daojin; Hao, Yongchao; Chang, Yingna; Han, Nana; Li, Yaping; Liu, Junfeng; Wang, Feng; Liu, Wen; Duan, Haohong; Sun, Xiaoming
Source:
RSC advances 2018 v.8 no.46 pp. 26004-26010
ISSN:
2046-2069
Subject:
active sites; batteries; carbon nanotubes; catalysts; cost effectiveness; electron transfer; energy; graphene; oxygen
Abstract:
... The fabrication of cost effective and efficient electrocatalysts with functional building blocks to replace noble metal ones is of great importance for energy related applications yet remains a great challenge. Herein, we report the fabrication of a hierarchical structure containing CNTs/graphene/transition-metal hybrids (h-NCNTs/Gr/TM) with excellent bifunctional oxygen electrocatalytic activity. ...
DOI:
10.1039/c8ra03994a

94. Carbon Nanotubes Derived from Yeast-Fermented Wheat Flour and Their Energy Storage Application

Author:
Gao, Zan; Song, Ningning; Zhang, Yunya; Schwab, Yosyp; He, Jiajun; Li, Xiaodong
Source:
ACS sustainable chemistry & engineering 2018 v.6 no.9 pp. 11386-11396
ISSN:
2168-0485
Subject:
batteries; biomass; carbon; carbon nanotubes; catalysts; cathodes; dough; electronics; energy; sulfur; temperature; vapors; wheat; wheat flour
Abstract:
... Worldwide growing commercial interests in applying carbon nanotubes (CNTs) in diverse applications, such as batteries, sensors, catalyst supports, thermal electronics, and high-strength composites, have dramatically expanded the demand for higher CNT production capacity. However, current CNT production is still dominated by relatively high-cost chemical vapor deposition (CVD) methods, which usuall ...
DOI:
10.1021/acssuschemeng.8b01292

95. On an easy way to prepare highly efficient Fe/N-co-doped carbon nanotube/nanoparticle composite for oxygen reduction reaction in Al–air batteries

Author:
Wang, Liping; Fu, Liang; Li, Jingsha; Zeng, Xianguang; Xie, Hualin; Huang, Xiaobing; Wang, Haiyan; Tang, Yougen
Source:
Journal of materials science 2018 v.53 no.14 pp. 10280-10291
ISSN:
0022-2461
Subject:
active sites; batteries; carbon; carbon nanotubes; catalysts; catalytic activity; commercialization; electric power; electrochemistry; iron; melamine; nanoparticles; nitrates; pyrolysis
Abstract:
... Developing an efficient and low-cost oxygen reduction reaction (ORR) catalyst is the key to realize the commercialization of metal–air batteries. Fe/N-co-doped carbon materials (Fe–N–C) are regarded as one of the most promising oxygen reduction reaction (ORR) catalysts to replace expensive and unstable Pt/C in metal–air batteries. In this work, a new kind of Fe/N-co-doped special carbon nanotube/n ...
DOI:
10.1007/s10853-018-2245-0

96. Mn3O4 Quantum Dots Supported on Nitrogen-Doped Partially Exfoliated Multiwall Carbon Nanotubes as Oxygen Reduction Electrocatalysts for High-Performance Zn–Air Batteries

Author:
Huang, Zongxiong; Qin, Xueping; Gu, Xiefang; Li, Guanzhou; Mu, Yangchang; Wang, Naiguang; Ithisuphalap, Kemakorn; Wang, Hongxia; Guo, Zaiping; Shi, Zhicong; Wu, Gang; Shao, Minhua
Source:
ACS applied materials & interfaces 2018 v.10 no.28 pp. 23900-23909
ISSN:
1944-8252
Subject:
adsorption; batteries; carbon nanotubes; catalysts; catalytic activity; cathodes; density functional theory; electric power; electrochemistry; energy; graphene; hydrogen; manganese oxides; nitrogen; oxygen; production costs; quantum dots; synergism
Abstract:
... Highly efficient and low-cost nonprecious metal electrocatalysts that favor a four-electron pathway for the oxygen reduction reaction (ORR) are essential for high-performance metal–air batteries. Herein, we show an ultrasonication-assisted synthesis method to prepare Mn₃O₄ quantum dots (QDs, ca. 2 nm) anchored on nitrogen-doped partially exfoliated multiwall carbon nanotubes (Mn₃O₄ QDs/N-p-MCNTs) ...
DOI:
10.1021/acsami.8b06984

97. In Situ Growth of NiFe Alloy Nanoparticles Embedded into N-Doped Bamboo-like Carbon Nanotubes as a Bifunctional Electrocatalyst for Zn–Air Batteries

Author:
Bin, Duan; Yang, Beibei; Li, Chao; Liu, Yao; Zhang, Xiao; Wang, Yonggang; Xia, Yongyao
Source:
ACS applied materials & interfaces 2018 v.10 no.31 pp. 26178-26187
ISSN:
1944-8252
Subject:
alloy nanoparticles; batteries; carbon nanotubes; catalysts; catalytic activity; cathodes; electrochemistry; oxygen production
Abstract:
... Developing low-cost catalysts for electrochemical oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) with superior performance in an alkaline solution is of significance for large-scale applications in aqueous zinc–air batteries (ZABs). Herein, we describe the in situ design of embedded NiFe nanoparticles into the N-doped bamboo-like carbon nanotube (NBCNT) with high catalytic per ...
DOI:
10.1021/acsami.8b04940

98. Metal oxide nanoprism-arrays assembled in N-doped carbon foamy nanoplates that have efficient polysulfide-retention for ultralong-cycle-life lithium–sulfur batteries

Author:
Yao, Lu; Dong, Xinwei; Zhang, Chaoran; Hu, Nantao; Zhang, Yafei
Source:
Journal of materials chemistry 2018 v.6 no.24 pp. 11260-11269
ISSN:
2050-7496
Subject:
batteries; carbon; carbon nanotubes; cathodes; chemistry; foams; sulfur; synergism; zinc oxide
Abstract:
... The design and scalable construction of unique ordered structures, which can ensure efficient polysulfide-retention for ultralong-cycle-life lithium–sulfur (Li–S) batteries, are desirable but challenging for high-performance Li–S batteries. Herein, we demonstrate a novel ordered structure based on ZnO nanoprism-arrays (ZnO NAs) in N-doped carbon foam nanoplates (NCFNs) threaded with multi-walled c ...
DOI:
10.1039/c8ta03012j

99. Exploring PVFM-Based Janus Membrane-Supporting Gel Polymer Electrolyte for Highly Durable Li–O2 Batteries

Author:
Meng, Nan; Lian, Fang; Li, Yadi; Zhao, Xiaofeng; Zhang, Li; Lu, Shigang; Li, Hong
Source:
ACS applied materials & interfaces 2018 v.10 no.26 pp. 22237-22247
ISSN:
1944-8252
Subject:
Janus; anodes; artificial membranes; batteries; carbon nanotubes; cathodes; coatings; crosslinking; electric power; electrolytes; gels; lithium; oxygen; polymers; solvents
Abstract:
... Electrolyte is the key to constructing the ionic transport paths and O₂ gas diffusion routes in the cathode as well as maintaining the electrode interfacial stability in view of the complex chemistry of Li–O₂ batteries. A novel poly(vinyl formal) (PVFM)-based Janus membrane, which is prepared via coating multiwalled carbon nanotubes (MWCNTs) on the porous side of the cross-linked PVFM membrane, ha ...
DOI:
10.1021/acsami.8b05393

100. CO2 oxidation of carbon nanotubes for lithium-sulfur batteries with improved electrochemical performance

Author:
Wang, Datao; Wang, Ke; Wu, Hengcai; Luo, Yufeng; Sun, Li; Zhao, Yuxing; Wang, Jing; Jia, Lujie; Jiang, Kaili; Li, Qunqing; Fan, Shoushan; Wang, Jiaping
Source:
Carbon 2018 v.132 pp. 370-379
ISSN:
0008-6223
Subject:
air; batteries; carbon; carbon dioxide; carbon nanotubes; cathodes; dispersions; electrochemistry; electrolytes; electrostatic interactions; oxidation; sulfur
Abstract:
... The fabrication of high-performance cathodes with high sulfur content is essential for the practical realization of lithium–sulfur (Li–S) systems. The preparation of high-sulfur-content electrodes is currently hindered by poor dispersion of the conductive agents; nonuniformly distributed conductive agents cannot provide sufficient sulfur-loading sites, thereby resulting in aggregation of sulfur/Li ...
DOI:
10.1016/j.carbon.2018.02.048