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H2 generation from two-step thermochemical water-splitting reaction using sol-gel derived SnxFeyOz
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10.1063/1.3659684
/content/aip/journal/jrse/3/6/10.1063/1.3659684
http://aip.metastore.ingenta.com/content/aip/journal/jrse/3/6/10.1063/1.3659684
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Figures

Image of FIG. 1.
FIG. 1.

Thermochemical water-splitting reactor set-up for H2 generation [31].

Image of FIG. 2.
FIG. 2.

SEM images of SnxFeyOz powders prepared with Sn:Fe weight ratio of 1:2 wt/wt and calcined rapidly upto 900 °C and quenched in (a) air or (b) N2 environment.

Image of FIG. 3.
FIG. 3.

Transient H2 profiles obtained during four thermochemical cycles where water-splitting and regeneration steps were performed at 900 °C and 1100 °C using SF-1 and SF-2 materials.

Image of FIG. 4.
FIG. 4.

XRD patterns of (a) SF-1 as-prepared and reacted and (b) SF-2 as-prepared and reacted (the reacted refers to the material that underwent four thermochemical cycles).

Image of FIG. 5.
FIG. 5.

A summary of different products observed at the end of calcination and thermochemical cycles.

Image of FIG. 6.
FIG. 6.

Comparison of H2 generation ability of SF-1 and SF-2 materials during four thermochemical cycles where water-splitting and regeneration steps were performed 900 °C and 1100 °C, respectively.

Image of FIG. 7.
FIG. 7.

SEM images of reacted (a) SF-1 and (b) SF-2 materials obtained after performing four consecutive thermochemical cycles in the temperature range of 900 °C to 1100 °C.

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/content/aip/journal/jrse/3/6/10.1063/1.3659684
2011-11-15
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: H2 generation from two-step thermochemical water-splitting reaction using sol-gel derived SnxFeyOz
http://aip.metastore.ingenta.com/content/aip/journal/jrse/3/6/10.1063/1.3659684
10.1063/1.3659684
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