skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Fe 2 TiO 5 -incorporated hematite with surface P-modification for high-efficiency solar water splitting

Authors:
; ; ; ; ; ; ;
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1397476
Grant/Contract Number:
AC02-05CH11231
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Nano Energy
Additional Journal Information:
Journal Volume: 32; Journal Issue: C; Related Information: CHORUS Timestamp: 2017-10-04 21:17:44; Journal ID: ISSN 2211-2855
Publisher:
Elsevier
Country of Publication:
Netherlands
Language:
English

Citation Formats

Lv, Xiaolin, Nie, Kaiqi, Lan, Huiwen, Li, Xin, Li, Youyong, Sun, Xuhui, Zhong, Jun, and Lee, Shuit-Tong. Fe 2 TiO 5 -incorporated hematite with surface P-modification for high-efficiency solar water splitting. Netherlands: N. p., 2017. Web. doi:10.1016/j.nanoen.2017.01.001.
Lv, Xiaolin, Nie, Kaiqi, Lan, Huiwen, Li, Xin, Li, Youyong, Sun, Xuhui, Zhong, Jun, & Lee, Shuit-Tong. Fe 2 TiO 5 -incorporated hematite with surface P-modification for high-efficiency solar water splitting. Netherlands. doi:10.1016/j.nanoen.2017.01.001.
Lv, Xiaolin, Nie, Kaiqi, Lan, Huiwen, Li, Xin, Li, Youyong, Sun, Xuhui, Zhong, Jun, and Lee, Shuit-Tong. Wed . "Fe 2 TiO 5 -incorporated hematite with surface P-modification for high-efficiency solar water splitting". Netherlands. doi:10.1016/j.nanoen.2017.01.001.
@article{osti_1397476,
title = {Fe 2 TiO 5 -incorporated hematite with surface P-modification for high-efficiency solar water splitting},
author = {Lv, Xiaolin and Nie, Kaiqi and Lan, Huiwen and Li, Xin and Li, Youyong and Sun, Xuhui and Zhong, Jun and Lee, Shuit-Tong},
abstractNote = {},
doi = {10.1016/j.nanoen.2017.01.001},
journal = {Nano Energy},
number = C,
volume = 32,
place = {Netherlands},
year = {Wed Feb 01 00:00:00 EST 2017},
month = {Wed Feb 01 00:00:00 EST 2017}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1016/j.nanoen.2017.01.001

Citation Metrics:
Cited by: 6works
Citation information provided by
Web of Science

Save / Share:
  • An efficient visible-light-sensitive heterostructure photoanode of CdS nanoparticles/ZnO shell/TiO{sub 2} nanotube (CdS/ZnO-TiNT) arrays were investigated for solar water splitting. Highly ordered arrays of TiNT were grown vertically on Ti foil by electrochemical anodization. Both aqueous solution routes were used in turn to coat a thin recombination barrier of ZnO shell and narrow band gap CdS nanoparticles to the surface of the TiNT arrays. As a result of strong absorption within solar spectrum and effective suppression of electron-hole pair recombination in CdS/ZnO-TiNT arrays, a significant improvement in solar-to-hydrogen conversion efficiency from 0.39% to 1.30% was obtained.
  • A new titanium dioxide (TiO{sub 2}) slurry formulation is herein reported for the fabrication of TiO{sub 2} photoanode for use in dye-sensitized solar cells (DSSCs). The prepared TiO{sub 2} photoanode featured a highly uniform mesoporous structure with well-dispersed TiO{sub 2} nanoparticles. The energy conversion efficiency of the resulting TiO{sub 2} slurry-based DSSC was ∼63% higher than that achieved by a DSSC prepared using a commercial TiO{sub 2} slurry. Subsequently, the incorporation of acid-treated multi-walled carbon nanotubes (CNTs) into the TiO{sub 2} slurry was examined. More specifically, the effect of varying the concentration of the CNTs in this slurry on themore » performance of the resulting DSSCs was studied. The chemical state of the CNTs-incorporated TiO{sub 2} photoanode was investigated by Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy. A high energy conversion efficiency of 6.23% was obtained at an optimum CNT concentration of ∼0.06 wt.%. The obtained efficiency corresponds to a 63% enhancement when compared with that obtained from a DSSC based on a commercial TiO{sub 2} slurry. The higher efficiency was attributed to the improvement in the collection and transport of excited electrons in the presence of the CNTs.« less
  • Fe{sub 2}O{sub 3}–CaO–SiO{sub 2} glass ceramics containing nucleation agent P{sub 2}O{sub 5}/TiO{sub 2} were prepared by sol-gel method. The samples were characterized by X-ray diffraction (XRD) and differential scanning calorimetry (DSC). The activation energy and kinetic parameters for crystallization of the samples were calculated by the Johnson-Mehi-Avrami (JMA) model and Augis-Bennett method according to the results of DSC. The results showed that the crystallization mechanism of Fe{sub 2}O{sub 3}–CaO–SiO{sub 2} glass, whose non-isothermal kinetic parameter n = 2.3, was consistent with surface crystallization of the JMA model. The kinetics model function of Fe{sub 2}O{sub 3}–CaO–SiO{sub 2} glass, f(α) = 2.3(1–α)[–ln(1–α)]{supmore » 0.57}, was also obtained. The addition of nucleation agent P{sub 2}O{sub 5}/TiO{sub 2} could reduce the activation energy, which made the crystal growth modes change from onedimensional to three-dimensional.« less