NDLI: Facile solvothermal synthesis and superior lithium storage capability of Co<sub>3</sub>O<sub>4</sub> nanoflowers with multi-scale dimensions

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Materials Chemistry Frontiers Vol -1

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Contents list

Multi-shelled hollow micro-/nanostructures: promising platforms for lithium-ion batteries

Recent advances in the synthesis of Janus nanomaterials of block copolymers

Increasing the stability of Mg₂(dobpdc) metal–organic framework in air through solvent removal

Self assembly of a γ-amino butyric acid based derivative into tunable nano/micro structures

A robust molecular unit nanogrid servicing as network nodes via molecular installing technology

Stable and charge recombination minimized π-extended thioalkyl substituted tetrathiafulvalene dye-sensitized solar cells

Facile solvothermal synthesis and superior lithium storage capability of Co₃O₄ nanoflowers with multi-scale dimensions

Whispering-gallery-mode based CH₃NH₃PbBr₃ perovskite microrod lasers with high quality factors

Monolithic hierarchical gold sponges for efficient and stable catalysis in a continuous-flow microreactor

Self-assembly of AB diblock copolymer solutions confined in cylindrical nanopores

An ambipolar azaacene as a stable photocathode for metal-free light-driven water reduction

Novel donor–acceptor type conjugated polymers based on quinoxalino[6,5-f]quinoxaline for photovoltaic applications

Fabrication of convex lens-shaped polymer particles by tuning the interfacial interaction

Triphenylamine-based donor–π–acceptor organic phosphors: synthesis, characterization and theoretical study

Flexible assembly of targeting agents on porous magnetic nano-cargos by inclusion complexation for accurate drug delivery

Dicyanopyrazine capped with tetraphenylethylene: polymorphs with high contrast luminescence as organic volatile sensors

Fluorescent C-dot nanocomposites as efficient photothermal agents and multi-modal imaging tracers

Influence of protein adsorption on the cellular uptake of AuNPs conjugated with chiral oligomers

Luminescence properties of La₂W_2−xMo_xO₉ (x = 0–2):Eu³⁺ materials and their Judd–Ofelt analysis: novel red line emitting phosphors for pcLEDs

Graphene oxide coupled carbon nitride homo-heterojunction photocatalyst for enhanced hydrogen production

Correction: Triphenylamine-based donor–π–acceptor organic phosphors: synthesis, characterization and theoretical study

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Materials Chemistry Frontiers Vol - 1 Issue - 2

Materials Chemistry Frontiers Vol - 1 Issue - 1

Facile solvothermal synthesis and superior lithium storage capability of Co₃O₄ nanoflowers with multi-scale dimensions

Content Provider	Royal Society of Chemistry (RSC)
Author	Lu, Xiao-Ying Tang, Yuanyuan Wong, King Yan Wang, Bin
Copyright Year	2017
Abstract	In this study, Co3O4 nanoflowers (Co3O4-NFs) have been successfully synthesized by a facile ammonia-assisted solvothermal process and subsequent heat treatment. By suitably increasing ammonia solution added during solvothermal synthesis, flower-like Co3O4 structures were tailored from nanoflowers to microflowers (Co3O4-MFs). Materials characterization indicated that Co3O4-NFs with a specific surface area as high as 103.9 m2 g−1 were composed of multi-scale dimensions, including nanoparticles (0D) of about 10 nm in size, nanosheets (2D) of about 10 nm in thickness and nanoflowers (3D) of 290 ± 25 nm in diameter. The unique structural characteristics were beneficial for fast lithium ion diffusion and efficient electron transport. In addition, the mesoporous structure (22.6 nm) and the large pore volume (0.587 cm3 g−1) of Co3O4-NFs were favorable for effectively alleviating volume expansion problems of high-capacity anode materials during charge–discharge cycles. When Co3O4-NFs were investigated as anode materials for lithium ion batteries, superior lithium storage capability, excellent cycling stability and C-rate performance were achieved, in comparison with Co3O4-MFs and commercial Co3O4 micro-/nanoparticles (Co3O4-NPs). Specifically, when tested at a current density of 500 mA g−1 for 100 cycles, the reversible specific capacity of 1323 mA h g−1 was achieved for Co3O4-NFs, much higher than Co3O4-MFs (1281 mA h g−1) and Co3O4-NPs (107 mA h g−1). When current densities of C-rate tests were increased to 1000, 2000 and 3000 mA g−1, Co3O4-NFs could still deliver average specific capacities of around 1081, 925.9 and 570.8 mA h g−1, respectively. Owing to the intriguing merits from the unique characteristics, Co3O4-NFs with a nanoflower structure could achieve remarkable lithium storage capability, demonstrating great potential in next-generation lithium ion batteries.
Starting Page	468
Ending Page	476
Page Count	9
File Format	HTM / HTML PDF
ISSN	20521529
Volume Number	1
Issue Number	3
Journal	Materials Chemistry Frontiers
DOI	10.1039/c6qm00114a
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Ammonia Mesoporous material Anode Nanoflower Specific surface area Ion Lithium Diffusion Electric current Three-dimensional space
Content Type	Text
Resource Type	Article

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