1. Pseudocapacitance-Enhanced Li-Ion Microbatteries Derived by a TiN@TiO2 Nanowire Anode 
Wei Wen, Jin-Ming Wu, Yin-Zhu Jiang, Lu-Lu Lai, Jian Song 
Chem 
Volume 2, Issue 3, Pages (March 2017)
DOI: /j.chempr
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2. Chem 2017 2, DOI: ( /j.chempr )
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3. Figure 1
Schematics of the Fabrication Process of Coaxial Nanowire Arrays Constructed by a Single-Crystal-like TiN Core and Anatase TiO2 Mesocrystal Shell
(A) TiN nanowires array were prepared in a straightforward way by a combination of a hydrothermal reaction, proton exchange, and thermal treatment in ammonia.
(B) The anatase TiO2 mesocrystals were deposited on the surface of TiN nanowire arrays by a wet-chemical route at 60°C.
Chem 2017 2, DOI: ( /j.chempr )
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4. Figure 2
Electron Microscopy Characterization of the TiN Nanowires and the TiN/TiO2 Nanowires
(A and B) FESEM images (A) and TEM images (B) of the TiN nanowires show the single-crystal-like nanowires with porous morphology.
(C–G) Top and cross-sectional (inset) FESEM images (C), TEM images (D–F), and HRTEM image (G) of the TiN/TiO2 nanowires. The inset in (G) shows the corresponding fast-Fourier transform pattern. The electron microscopy images of the TiN/TiO2 nanowires demonstrate the growth of nanoporous TiO2 mesocrystals on the surface of the TiN nanowires.
Scale bars, 2 μm (A and C), 200 nm (B and D), 100 nm (E), 20 nm (F), and 2 nm (G). See also Figures S2 and S3.
Chem 2017 2, DOI: ( /j.chempr )
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5. Figure 3 Characterizations of the TiN/TiO2 Nanowires
(A) EDS line scans. The yellow line shows the scanning trace.
(B) Elemental mapping. Scale bar, 50 nm.
(C) Raman spectrum.
(D) Pore-size distribution (that of the TiN nanowires is also shown for comparison).
See also Figure S4.
Chem 2017 2, DOI: ( /j.chempr )
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6. Figure 4
Li-Ion Storage Property of the TiN/TiO2 Nanowire Array Electrode
(A) Cycling performance at a current density of 0.11 mA cm−2.
(B) Comparison of the rate capability of TiN/TiO2 nanowire arrays with other TiO2 anodes on nanostructured current collectors (the thickness of the thin films is also shown).
(C) Cycling performance and the corresponding coulombic efficiency of TiN/TiO2 nanowire arrays at a current density of 1.0 mA cm−2.
(D and E) FESEM images of TiN/TiO2 nanowire arrays after 1,000 charge-discharge cycles at 1.0 mA cm−2. Scale bars, 2 μm (D) and 500 nm (E).
(F) Three-dimensional view (left) and simplified two-dimensional cross-sectional view (right) of the TiN/TiO2 nanowire arrays.
See also Figure S8.
Chem 2017 2, DOI: ( /j.chempr )
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7. Figure 5
Electrochemistry and Kinetic Analysis of the TiN/TiO2 Nanowire Arrays
(A) Cyclic voltammograms at different scan rates in the range of 0.1–10.0 mV s−1 (inset: the cyclic voltammogram at 0.5 mV s−1).
(B) The first two galvanostatic cycling profiles at a low current density of 0.02 mA cm−2.
(C) Determination of b value using the relationship between peak current and scan rate.
(D) Voltage offset (ΔEp) of TiN/TiO2 nanowire arrays and TiO2 nanowire arrays at different scan rates.
(E) Separation of the capacitive and diffusion currents at 1 mV s−1.
(F) Contribution ratio of the capacitive and diffusion-controlled capacities at different scan rates.
Chem 2017 2, DOI: ( /j.chempr )
Copyright © 2017 Elsevier Inc. Terms and Conditions