Serial Ionic Exchange for the Synthesis of Multishelled Copper Sulfide Hollow Spheres

Xiong, Shenglin; Zeng, Hua Chun

doi:10.1002/anie.201106826

Cited by 193 publications

(163 citation statements)

References 31 publications

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“…[ 34,35 ] First, Cu 2 O nanocubes were exploited as a template as well as a copper source for the synthesis of octahedral HKUST-1. When an ethanolic Cu 2 O suspension was mixed with an H 3 BTC ethanolic solution, gradual dissolution of the Cu 2 O nanocubes occurred, followed by the formation of octahedral HKUST-1 crystals (Structure 1, Scheme 1 ).…”

Section: Synthesis Of Hkust-1 and Cu(hbtc)-1 By Using Cu 2 O As A Copmentioning

confidence: 99%

Synthesis and Functionalization of Oriented Metal–Organic‐Framework Nanosheets: Toward a Series of 2D Catalysts

Zhan

Zeng

2016

Adv Funct Materials

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236

153

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3268 wileyonlinelibrary.com inorganic nodes in MOFs can be intrinsic active sites for catalysis, e.g., copperbased MOFs have been demonstrated as an excellent solid Lewis acid catalyst for a few reactions; [ 4,7 ] (ii) extrinsic functional species (e.g., nanoparticles) can be introduced to MOFs structure, either on the external surfaces or inside the bulks or shells of MOFs. Various catalytic nanoparticles have been successfully incorporated into different MOFs matrices, including Au, Ag, Pt, Cu, or their combination etc.; [8][9][10] and (iii) MOFs also serve as solid precursors for metal or metaloxide catalysts due to their high metal density within the frameworks and easy transformation. Many porous transition metal oxides, such as CuO, Cu 2 O, Mn 2 O 3 , Mn 3 O 4 , Co 3 O 4 , and ZnO among others, have been derived through thermolysis under controlled atmospheres. [11][12][13][14][15][16] For example, porous CuO hollow architectures with perfect octahedral shape were prepared by annealing HKUST-1 precursor in fl owing air. [ 12 ] Moreover, zeolitic imidazolate framework-67 (ZIF-67) was used to design and generate Co 3 O 4 or structurally more complex Co 3 O 4 /NiCo 2 O 4 . [ 13,14 ] Although increasing research attention has been paid to the catalytic applications of MOFs, to our knowledge, shapes of the studied MOFs are mostly followed in 3D isotropic polyhedrons (i.e., high symmetric MOF crystals with sizes greater than 100 nm), and the catalytic systems derived from MOFs with anisotropic shapes such as nanofi bers or nanosheets with a dimension(s) less than 10 nm have seldom been explored.Similar to many inorganic nanomaterials, tailoring of size and shape is essential to customize MOFs for specifi c applications according to the principle of "structure dictates function." [ 17 ] Although a fi ne control over the size and size-distribution of MOFs has been realized, e.g., in the range of 100 nm to several micrometers, [ 18 ] fashioning MOFs into desired shapes for specifi c applications remain to be challenging. Nevertheless, several attempts to the architectural control of MOFs shapes have recently appeared in the literature, ranging from 1D, 2D to 3D nanostructures. [ 19,20 ] For example, nanosheets of MOFs as molecular sieving membranes for gas separation have been made in two recent reports, [ 21,22 ] which achieved much higher separation selectivity than MOFs in other

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Section: Synthesis Of Hkust-1 and Cu(hbtc)-1 By Using Cu 2 O As A Copmentioning

confidence: 99%

Synthesis and Functionalization of Oriented Metal–Organic‐Framework Nanosheets: Toward a Series of 2D Catalysts

Zhan

Zeng

2016

Adv Funct Materials

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236

153

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“…Recently, transition metal sulfides have attracted great attention because of their excellent properties and promising applications in electronic, optical and optoelectronic devices [31][32][33][34][35] . In particular, ternary nickel cobalt sulfides have been regarded as a promising class of electrode materials for high-performance energy storage devices, since they offer higher electrochemical activity and higher capacity than mono-metal sulfides [36][37][38][39] .…”

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Formation of nickel cobalt sulfide ball-in-ball hollow spheres with enhanced electrochemical pseudocapacitive properties

et al. 2015

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While the synthesis of hollow structures of transition metal oxides is well established, it is extremely challenging to fabricate complex hollow structures for mixed transition metal sulfides. Here we report an anion exchange method to synthesize a complex ternary metal sulfides hollow structure, namely nickel cobalt sulfide ball-in-ball hollow spheres. Uniform nickel cobalt glycerate solid spheres are first synthesized as the precursor and subsequently chemically transformed into nickel cobalt sulfide ball-in-ball hollow spheres. When used as electrode materials for electrochemical capacitors, these nickel cobalt sulfide hollow spheres deliver a specific capacitance of 1,036 F g À 1 at a current density of 1.0 A g À 1 . An asymmetric supercapacitor based on these ball-in-ball structures shows long-term cycling performance with a high energy density of 42.3 Wh kg À 1 at a power density of 476 W kg À 1 , suggesting their potential application in high-performance electrochemical capacitors.

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“…4 Various methodologies have been developed to achieve this special nanostructure. [5][6][7][8] Heterogeneous contraction, for example, is a typical and effective route for controlled synthesis of hollow structure with different interiors, which is caused by non-equilibrium heat treatment and determined by the difference between the cohesive force and the adhesive force generated by a high heating rate. 18 However, the hollow structure is obtained as it is after calcinations and cannot be tuned because of the smaller weight loss.…”

mentioning

confidence: 99%

Hollow MnCo₂O₄ Submicrospheres with Multilevel Interiors: From Mesoporous Spheres to Yolk-in-Double-Shell Structures

Wang

Liang

et al. 2013

ACS Appl. Mater. Interfaces

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We present a general strategy to synthesize uniform MnCo2O4 submicrospheres with various hollow structures. By using MnCo-glycolate submicrospheres as the precursor with proper manipulation of ramping rates during the heating process, we have fabricated hollow MnCo2O4 submicrospheres with multilevel interiors, including mesoporous spheres, hollow spheres, yolk-shell spheres, shell-in-shell spheres, and yolk-indouble-shell spheres. Interestingly, when tested as anode materials in lithium ion batteries, the MnCo2O4 submicrospheres with a yolk-shell structure showed the best performance among these multilevel interior structures because these structures can not only supply a high contact area but also maintain a stable structure.

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Serial Ionic Exchange for the Synthesis of Multishelled Copper Sulfide Hollow Spheres

Cited by 193 publications

References 31 publications

Synthesis and Functionalization of Oriented Metal–Organic‐Framework Nanosheets: Toward a Series of 2D Catalysts

Synthesis and Functionalization of Oriented Metal–Organic‐Framework Nanosheets: Toward a Series of 2D Catalysts

Formation of nickel cobalt sulfide ball-in-ball hollow spheres with enhanced electrochemical pseudocapacitive properties

Hollow MnCo₂O₄ Submicrospheres with Multilevel Interiors: From Mesoporous Spheres to Yolk-in-Double-Shell Structures

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Serial Ionic Exchange for the Synthesis of Multishelled Copper Sulfide Hollow Spheres

Cited by 193 publications

References 31 publications

Synthesis and Functionalization of Oriented Metal–Organic‐Framework Nanosheets: Toward a Series of 2D Catalysts

Synthesis and Functionalization of Oriented Metal–Organic‐Framework Nanosheets: Toward a Series of 2D Catalysts

Formation of nickel cobalt sulfide ball-in-ball hollow spheres with enhanced electrochemical pseudocapacitive properties

Hollow MnCo2O4 Submicrospheres with Multilevel Interiors: From Mesoporous Spheres to Yolk-in-Double-Shell Structures

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Product

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Hollow MnCo₂O₄ Submicrospheres with Multilevel Interiors: From Mesoporous Spheres to Yolk-in-Double-Shell Structures