Synthesis of floriated ZnFe2O4 with porous nanorod structures and its photocatalytic hydrogen production under visible light

Lv, Hongjin; Ma, Liang; Zeng, Peng; Ke, Deping; Peng, Tianyou

doi:10.1039/b919897k

Cited by 254 publications

(126 citation statements)

References 45 publications

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“…[ 31,32 ] The fi tting results of the Zn 2p XPS spectrum are demonstrated in Figure 2 b. The peaks at BEs of ≈1045.0 and ≈1022.1 eV can be attributed to Zn 2p1/2 and Zn 2p3/2, respectively, which reveals that the oxidation state of Zn is 2+ and is in good line with the spinel octahedral (B-site) in the present ZFO, [ 32,33 ] and we can also observe that another two peaks are located at BEs of ≈1021.2 and ≈1044.3 eV, and should be ascribed to the divalent Zn in the ZnO structure. [ 34 ] Furthermore, the high-resolution spectra of O 1s (Figure 2 c) display a broad asymmetric curve, which can be deconvoluted into three peaks with BEs at ≈532.4, ≈530.1 and ≈529.4 eV, respectively.…”

Section: Synthesis and Structural Analysis Of The As-prepared Zzfo Ansupporting

confidence: 51%

“…[ 31,35,36 ] The peak at ≈530.1 eV suggests the presence of other O components (i.e., OH, H 2 O or carbonate species) adsorbed on the NPs surface. [ 33 ] And the well-resolved peak sitting at BE of ≈532.4 eV corresponds to a higher number of defect sites with low oxygen co-ordination in the nano-scaled ZnFe 2 O 4 and/or ZnO species. [ 35 ] Figure 3 a shows the panoramic fi eld-emission scanning electron microscopy (FESEM) image of the as-fabricated ZFCN precursor.…”

Section: Synthesis and Structural Analysis Of The As-prepared Zzfo Anmentioning

confidence: 99%

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Self‐Sacrifice Template Fabrication of Hierarchical Mesoporous Bi‐Component‐Active ZnO/ZnFe₂O₄ Sub‐Microcubes as Superior Anode Towards High‐Performance Lithium‐Ion Battery

Hou

Lian

Zhang

et al. 2014

Adv Funct Materials

335

206

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In the work, a facile yet effi cient self-sacrifi ce strategy is smartly developed to scalably fabricate hierarchical mesoporous bi-component-active ZnO/ ZnFe 2 O 4 (ZZFO) sub-microcubes (SMCs) by calcination of single-resource Prussian blue analogue of Zn 3 [Fe(CN) 6 ] 2 cubes. The hybrid ZZFO SCMs are homogeneously constructed from well-dispersed nanocrstalline ZnO and ZnFe 2 O 4 (ZFO) subunites at the nanoscale. After selectively etching of ZnO nanodomains from the hybrid, porously assembled ZFO SMCs with integrate architecture are obtained accordingly. When evaluated as anodes for LIBs, both hybrid ZZFO and ZFO samples exhibit appealing electrochemical performance. However, the as-synthesized ZZFO SMCs demonstrate even better electrochemical Li-storage performance, including even larger initial discharge capacity and reversible capacity, higher rate behavior and better cycling performance, particularly at high rates, compared with the single ZFO, which should be attributed to its unique microstructure characteristics and striking synergistic effect between the bi-component-active, well-dispersed ZnO and ZFO nanophases. Of great signifi cance, light is shed upon the insights into the correlation between the electrochemical Li-storage property and the structure/component of the hybrid ZZFO SMCs, thus, it is strongly envisioned that the elegant design concept of the hybrid holds great promise for the effi cient synthesis of advanced yet low-cost anodes for next-generation rechargeable Li-ion batteries.

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Section: Synthesis and Structural Analysis Of The As-prepared Zzfo Ansupporting

confidence: 51%

Section: Synthesis and Structural Analysis Of The As-prepared Zzfo Anmentioning

confidence: 99%

Self‐Sacrifice Template Fabrication of Hierarchical Mesoporous Bi‐Component‐Active ZnO/ZnFe₂O₄ Sub‐Microcubes as Superior Anode Towards High‐Performance Lithium‐Ion Battery

Hou

Lian

Zhang

et al. 2014

Adv Funct Materials

335

206

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“…It can be seen from the XPS spectra of Ba 3d that there exists one electron state of Ba 3d 5 in the detectable surface region with a binding energy of 779.6 eV. The Ba 3d 5/2 state corresponds to the α state, which is associated with the pervoskite structure [30,31]. The Ti narrow scan spectrum of BaTiO 3 thin film (Fig.…”

Section: X-ray Photoelectron Spectroscopy (Xps)mentioning

confidence: 99%

Structural and electrical properties of barium titanate (BaTiO3) thin films obtained by spray pyrolysis method

Kumbhar

Mahadik

Chougule

et al. 2015

Materials Science-Poland

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Barium titanate (BaTiO 3 ) thin films have been prepared using the spray pyrolysis method. The films were deposited onto a glass substrate at varying substrate temperature ranging from 250 to 350°C with the interval of 50°C. The structural, morphological, electrical and dielectric properties of the deposited films have been studied. The X-ray diffraction pattern confirmed the polycrystalline nature of the films with a cubic crystal structure. X-ray photoelectron spectroscopy (XPS) showed a good agreement of the thin films stoichiometry with BaTiO 3 . A presence of Ba, Ti and O in the BaTiO 3 thin films was observed by energy dispersive X-ray analysis. The scanning electron microscopy (SEM) showed the heterogeneous distribution of cubical grains all over the substrate. The grain size decreased with an increase in substrate temperature. The dielectric constant and dielectric loss showed the dispersion behaviour as a function of frequency, measured in the frequency range of 20 Hz to 1 MHz. The AC conductivity (σ ac ) measurement showed the linear nature of obtained films, which confirms conduction mechanism due to small polarons. Impedance spectroscopy has been used to study the electrical behaviour of BaTiO 3 ferroelectric thin films. The ferroelectric hysteresis loop has been recorded at room temperature.

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“…6 eV, in accordance with the shake-up satellite structure, suggesting the Fe(III) state in the cubic spinel ZnFe2O4 phase. 27,28 The high-resolution spectrum of O 1s in Fig. 5(d) indicates the existence of two different oxygen species with a broad peak, which is fitted by two peaks at binding energies of ~530 and ~531.6 eV.…”

Section: Resultsmentioning

confidence: 99%

Room-temperature H2S Gas Sensor Based on Au-doped ZnFe2O4 Yolk-shell Microspheres

et al. 2017

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Synthesis of floriated ZnFe2O4 with porous nanorod structures and its photocatalytic hydrogen production under visible light

Cited by 254 publications

References 45 publications

Self‐Sacrifice Template Fabrication of Hierarchical Mesoporous Bi‐Component‐Active ZnO/ZnFe₂O₄ Sub‐Microcubes as Superior Anode Towards High‐Performance Lithium‐Ion Battery

Self‐Sacrifice Template Fabrication of Hierarchical Mesoporous Bi‐Component‐Active ZnO/ZnFe₂O₄ Sub‐Microcubes as Superior Anode Towards High‐Performance Lithium‐Ion Battery

Structural and electrical properties of barium titanate (BaTiO3) thin films obtained by spray pyrolysis method

Room-temperature H2S Gas Sensor Based on Au-doped ZnFe2O4 Yolk-shell Microspheres

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Synthesis of floriated ZnFe2O4 with porous nanorod structures and its photocatalytic hydrogen production under visible light

Cited by 254 publications

References 45 publications

Self‐Sacrifice Template Fabrication of Hierarchical Mesoporous Bi‐Component‐Active ZnO/ZnFe2O4 Sub‐Microcubes as Superior Anode Towards High‐Performance Lithium‐Ion Battery

Self‐Sacrifice Template Fabrication of Hierarchical Mesoporous Bi‐Component‐Active ZnO/ZnFe2O4 Sub‐Microcubes as Superior Anode Towards High‐Performance Lithium‐Ion Battery

Structural and electrical properties of barium titanate (BaTiO3) thin films obtained by spray pyrolysis method

Room-temperature H2S Gas Sensor Based on Au-doped ZnFe2O4 Yolk-shell Microspheres

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Product

Resources

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Self‐Sacrifice Template Fabrication of Hierarchical Mesoporous Bi‐Component‐Active ZnO/ZnFe₂O₄ Sub‐Microcubes as Superior Anode Towards High‐Performance Lithium‐Ion Battery

Self‐Sacrifice Template Fabrication of Hierarchical Mesoporous Bi‐Component‐Active ZnO/ZnFe₂O₄ Sub‐Microcubes as Superior Anode Towards High‐Performance Lithium‐Ion Battery