Hollow micro/nanostructured materials prepared by ion exchange synthesis and their potential applications

Yan, Chenglin; Rosei, Federico

doi:10.1039/c3nj00888f

Cited by 25 publications

(18 citation statements)

References 217 publications

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“…Scheme shows the fabrication process of mesoporous hollow core–shell Sb/ZnS@C heterostructure nanospheres. Due to the solubility difference of ZnS ( K sp = 2.93 × 10 −25 ) and Sb 2 S 3 ( K sp = 1.5 × 10 −93 ), the mesoporous ZnS can be served as a template to obtain hollow Sb 2 S 3 /ZnS heterostructure composites via a partial CER . To get a more stable structure, a thin contiguous resorcinol‐formaldehyde (RF) layer with a 3D crosslinked network is deposited on the surface of Sb 2 S 3 /ZnS composite uniformly .…”

Section: Resultsmentioning

confidence: 99%

“…Figure a,b shows us the structure evolution from mesoporous ZnS to hollow Sb 2 S 3 /ZnS on the basis of the different solubility of Sb 2 S 3 and ZnS. The thermodynamically favorable CER occurs for the metallic ion exchange between Zn 2+ and Sb 3+ . According to Kirkendall effect,[39c] under the effect of driving force based on a large solubility difference of ZnS ( K sp = 2.93 × 10 −25 ) and Sb 2 S 3 ( K sp = 1.5 × 10 −93 ), solid mesoporous ZnS spheres with a diameter around 170 nm are converted to hollow Sb 2 S 3 /ZnS heterostructure composites, eventually producing a hollow space at the middle of the original nanospheres.…”

Section: Resultsmentioning

confidence: 99%

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Mesoporous Hollow Sb/ZnS@C Core–Shell Heterostructures as Anodes for High‐Performance Sodium‐Ion Batteries

Dong

et al. 2018

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Combining the advantage of metal, metal sulfide, and carbon, mesoporous hollow core-shell Sb/ZnS@C hybrid heterostructures composed of Sb/ZnS inner core and carbon outer shell are rationally designed based on a robust template of ZnS nanosphere, as anodes for high-performance sodium-ion batteries (SIBs). A partial cation exchange reaction based on the solubility difference between Sb S and ZnS can transform mesoporous ZnS to Sb S /ZnS heterostructure. To get a stable structure, a thin contiguous resorcinol-formaldehyde (RF) layer is introduced on the surface of Sb S /ZnS heterostructure. The effectively protective carbon layer from RF can be designed as the reducing agent to convert Sb S to metallic Sb to obtain core-shell Sb/ZnS@C hybrid heterostructures. Simultaneously, the carbon outer shell is beneficial to the charge transfer kinetics, and can maintain the structure stability during the repeated sodiation/desodiation process. Owing to its unique stable architecture and synergistic effects between the components, the core-shell porous Sb/ZnS@C hybrid heterostructure SIB anode shows a high reversible capacity, good rate capability, and excellent cycling stability by turning the optimized voltage range. This novel strategy to prepare carbon-layer-protected metal/metal sulfide core-shell heterostructure can be further extended to design other novel nanostructured systems for high-performance energy storage devices.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Mesoporous Hollow Sb/ZnS@C Core–Shell Heterostructures as Anodes for High‐Performance Sodium‐Ion Batteries

Dong

et al. 2018

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117

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“…When cycled at a higher current density of 10 A g −1 for 5000 cycles, Co 0.5 Ni 0.5 MoO 4 manifests a capacitance retention of 91% (Figure S7, Supporting Information), demonstrating its excellent cyclability. Notably, the spherical structure is well maintained after long‐term charge–discharge cycles (Figure S8, Supporting Information), suggesting that the structural stability of the DSHSs facilitates the excellent cycling stability of Co 0.5 Ni 0.5 MoO 4 . Electrochemical impedance spectroscopy (EIS) spectra are collected to investigate the nature of charge transfer (Figure S9, Supporting Information).…”

Section: Resultsmentioning

confidence: 99%

Co_0.5Ni_0.5MoO₄ Double‐Shelled Hollow Spheres with Enhanced Electrochemical Performance for Supercapacitors and Lithium‐Ion Batteries

Chen

Luo

et al. 2019

Energy Tech

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Transition metal molybdates represent a promising family of electrode materials for supercapacitors and lithium‐ion batteries (LIBs). Herein, Co0.5Ni0.5MoO4 double‐shelled hollow spheres (DSHSs) are synthesized using a simple and scalable spray‐drying method followed by calcination in air. Benefited from the unique hollow structure as well as the coexistence of Co and Ni, the as‐synthesized Co0.5Ni0.5MoO4 DSHSs exhibit an improved pseudocapacitive property with a specific capacitance of 731 F g−1 at 0.5 A g−1 and a high capacitance retention of 91% (10 A g−1) after 5000 cycles. In addition, the obtained Co0.5Ni0.5MoO4 DSHSs also manifest a high specific capacity (900 mAh g−1 at 0.2 A g−1 after 50 cycles) and an excellent cyclability (756 mAh g−1 at 1 A g−1 after 1000 cycles) for lithium storage. This rational design on both component and structure provides an effective strategy to achieve high‐performance supercapacitors and LIBs.

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“…TiO 2 hollow sphere was synthesized by a facile hydrothermal method [9][10][11][12] and the TiO 2 /MoS 2 heterostructures were fabricated as follows. Typically, 135 mg of sodium molybdate (Na 2 MoO 4 Á 2H 2 O) and 90 mg of thioacetamide (C 2 H 5 NS) were dissolved in 20 mL of deionized water to form a transparent solution.…”

Section: Preparation Of Tio 2 /Mos 2 Heterostructuresmentioning

confidence: 99%

Multilayered MoS2 coated TiO2 hollow spheres for efficient photodegradation of phenol under visible light irradiation

Wang

Wei

et al. 2016

Materials Letters

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a b s t r a c tMultilayered MoS 2 coated hollow TiO 2 heterostructures were fabricated by a two-step hydrothermal process using TiO 2 hollow spheres as precursors. Compared with pure TiO 2 , the heterostructures exhibited greatly enhanced visible-light-responsive activity on photodecomposition of colorless phenol, due to the enlargement of visible light absorption and improvement separation efficiency of photogenerated electron-hole pairs. Photocatalytic activity was influenced by the MoS 2 /TiO 2 ratio and the optimized composition was obtained with high stability during recycling.

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Hollow micro/nanostructured materials prepared by ion exchange synthesis and their potential applications

Cited by 25 publications

References 217 publications

Mesoporous Hollow Sb/ZnS@C Core–Shell Heterostructures as Anodes for High‐Performance Sodium‐Ion Batteries

Mesoporous Hollow Sb/ZnS@C Core–Shell Heterostructures as Anodes for High‐Performance Sodium‐Ion Batteries

Co_0.5Ni_0.5MoO₄ Double‐Shelled Hollow Spheres with Enhanced Electrochemical Performance for Supercapacitors and Lithium‐Ion Batteries

Multilayered MoS2 coated TiO2 hollow spheres for efficient photodegradation of phenol under visible light irradiation

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Hollow micro/nanostructured materials prepared by ion exchange synthesis and their potential applications

Cited by 25 publications

References 217 publications

Mesoporous Hollow Sb/ZnS@C Core–Shell Heterostructures as Anodes for High‐Performance Sodium‐Ion Batteries

Mesoporous Hollow Sb/ZnS@C Core–Shell Heterostructures as Anodes for High‐Performance Sodium‐Ion Batteries

Co0.5Ni0.5MoO4 Double‐Shelled Hollow Spheres with Enhanced Electrochemical Performance for Supercapacitors and Lithium‐Ion Batteries

Multilayered MoS2 coated TiO2 hollow spheres for efficient photodegradation of phenol under visible light irradiation

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Product

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Co_0.5Ni_0.5MoO₄ Double‐Shelled Hollow Spheres with Enhanced Electrochemical Performance for Supercapacitors and Lithium‐Ion Batteries