Carbon-Encapsulated Co 3 O 4 @CoO@Co Nanocomposites for Multifunctional Applications in Enhanced Long-life Lithium Storage, Supercapacitor and Oxygen Evolution Reaction

Xu, Dongyang; Mu, Congpu; Xiang, Jianyong; Wen, Fusheng; Su, Can; Hao, Chunxue; Hu, Wentao; Tang, Yongfu; Liu, Zhongyuan

doi:10.1016/j.electacta.2016.10.116

Cited by 67 publications

(21 citation statements)

References 81 publications

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“…Compared to the traditional anode material (graphite has a low specific capacity of 372 mAh g −1 ) [8][9][10], transition metal oxides (TMOs) can deliver a higher theoretical specific capacity (500-1000 mAh g −1 ) that is promising to replace the conventional graphite material in LIBs [11,12]. Among the examined TMO materials, cobalt oxide has attracted considerable attention for its high specific capacity of 890 mAh g −1 [13][14][15]. However, the structure variation caused by volume expansion during Li + insertion and extraction processes hinders its practical application [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

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Metal–Oleate Complex-Derived Bimetallic Oxides Nanoparticles Encapsulated in 3D Graphene Networks as Anodes for Efficient Lithium Storage with Pseudocapacitance

Cao

Geng

et al. 2019

Nano-Micro Lett.

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HIGHLIGHTS• Bimetallic oxides nanoparticles derived from metal-oleate complexes embedded in 3D graphene networks were fabricated by a facile and rational design approach.• The unique porous architecture promotes charge transfer so as to enhance the reversible capacity.• The synergetic effect between the 0D nanoparticles and 3D graphene networks plays an essential role in the superb electrochemical performance. ABSTRACTIn this manuscript, we have demonstrated the delicate design and synthesis of bimetallic oxides nanoparticles derived from metal-oleate complex embedded in 3D graphene networks (MnO/CoMn 2 O 4 ⊂ GN), as an anode material for lithium ion batteries. The novel synthesis of the MnO/CoMn 2 O 4 ⊂ GN consists of thermal decomposition of metal-oleate complex containing cobalt and manganese metals and oleate ligand, forming bimetallic oxides nanoparticles, followed by a selfassembly route with reduced graphene oxides. The MnO/CoMn 2 O 4 ⊂ GN composite, with a unique architecture of bimetallic oxides nanoparticles encapsulated in 3D graphene networks, rationally integrates several benefits including shortening the diffusion path of Li + ions, improving electrical conductivity and mitigating volume variation during cycling. Studies show that the electrochemical reaction processes of MnO/CoMn 2 O 4 ⊂ GN electrodes are dominated by the pseudocapacitive behavior, leading to fast Li + charge/discharge reactions. As a result, the MnO/CoMn 2 O 4 ⊂ GN manifests high initial specific capacity, stable cycling performance, and excellent rate capability.

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Section: Introductionmentioning

confidence: 99%

“…Among the examined TMO materials, cobalt oxide has attracted considerable attention for its high specific capacity of 890 mAh g −1 [ 13 – 15 ]. However, the structure variation caused by volume expansion during Li + insertion and extraction processes hinders its practical application [ 16 – 18 ].…”

Section: Introductionmentioning

confidence: 99%

Metal–Oleate Complex-Derived Bimetallic Oxides Nanoparticles Encapsulated in 3D Graphene Networks as Anodes for Efficient Lithium Storage with Pseudocapacitance

Cao

Geng

et al. 2019

Nano-Micro Lett.

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“…Lithium ion battery, as a green energy storage device, is the alternative to current batteries most potential (for example, shows advanced energy density, which is about 4 times higher than nickel-cadmium battery and 1.6 times higher than nickel-metal hydride battery) [1,2,3]. However, the ever-lasting need for powerful energy storage equipment, especially for emerging industry (such as electric vehicle and smart grid), has spurred the evolution of the electrode material for LIBs [4,5,6,7].…”

Section: Introductionmentioning

confidence: 99%

Seaweed-Liked WS2/rGO Enabling Ultralong Cycling Life and Enhanced Rate Capability for Lithium-Ion Batteries

Huang

Jiang

et al. 2019

Nanomaterials

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WS2 is considered as a potential anode material for lithium ion batteries (LIBs) with superior theoretical capacity and stable structure with two-dimensional which facilitates to the transportation and storage of lithium ion. Nevertheless, the commercial recognition of WS2 has been impeded by the intrinsic properties of WS2, including poor electrical conductivity and large volume expansion. Herein, a seaweed-liked WS2/reduced graphene oxide (rGO) composites has been fabricated through a procedure involving the self-assembling of WO42−, hexadecyl trimethyl ammonium ion with graphene oxide (GO) and the subsequent thermal treatment. The WS2/rGO nanocomposite exhibited the outstanding electrochemical property with a stable and remarkable capacity (507.7 mAh·g−1) at 1.0 A·g−1 even after 1000 cycles. This advanced electrochemical property is due to its seaweed-liked feature which can bring in plentiful active sites, ameliorate the stresses arisen from volume variations and increase charge transfer rate.

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“…In this procedure, oxygen evolution reaction (OER) performance with low overpotential and high current densities is very important for large-scale production [6]. Considering energy storage [7], the lithium-ion battery (LIB) has been extensively studied because of its excellent properties, including large capacity and long-life cycling. The development of LIB anode materials with high capacities and super-long cyclic stability is one of the most important tasks [8].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of multifunctional carbon encapsulated Ni@NiO nanocomposites for oxygen reduction, oxygen evolution and lithium-ion battery anode materials

Carbon-Encapsulated Co 3 O 4 @CoO@Co Nanocomposites for Multifunctional Applications in Enhanced Long-life Lithium Storage, Supercapacitor and Oxygen Evolution Reaction

Cited by 67 publications

References 81 publications

Metal–Oleate Complex-Derived Bimetallic Oxides Nanoparticles Encapsulated in 3D Graphene Networks as Anodes for Efficient Lithium Storage with Pseudocapacitance

Metal–Oleate Complex-Derived Bimetallic Oxides Nanoparticles Encapsulated in 3D Graphene Networks as Anodes for Efficient Lithium Storage with Pseudocapacitance

Seaweed-Liked WS2/rGO Enabling Ultralong Cycling Life and Enhanced Rate Capability for Lithium-Ion Batteries

Fabrication of multifunctional carbon encapsulated Ni@NiO nanocomposites for oxygen reduction, oxygen evolution and lithium-ion battery anode materials

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