2016
DOI: 10.1016/s1872-2067(15)61119-6
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SnO 2 -based solid solutions for CH 4 deep oxidation: Quantifying the lattice capacity of SnO 2 using an X-ray diffraction extrapolation method

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Cited by 25 publications
(34 citation statements)
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“…However, both SnRuO-CP samples possess evidently higher surface areas of 23 m 2 g À 1 , further confirming that the formation of solid solution structure can impede the crystallization of the catalysts, which is in accordance to the XRD crystallite size results. [27,28,30] In summary, both XRD, Raman and N 2 -BET results have provided strong evidence to demonstrate that in SnRuO-IMP and SnRuO-DP samples, RuO 2 disperses mainly on the SnO 2 support surface as micro crystallites but with different sizes. With impregnation method, catalysts having smaller RuO 2 crystallite sizes can be obtained than with deposition-precipitation method, which is believed to be favorable to the activity.…”
Section: Xrd Hr-tem and N 2 -Bet Analysismentioning
confidence: 84%
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“…However, both SnRuO-CP samples possess evidently higher surface areas of 23 m 2 g À 1 , further confirming that the formation of solid solution structure can impede the crystallization of the catalysts, which is in accordance to the XRD crystallite size results. [27,28,30] In summary, both XRD, Raman and N 2 -BET results have provided strong evidence to demonstrate that in SnRuO-IMP and SnRuO-DP samples, RuO 2 disperses mainly on the SnO 2 support surface as micro crystallites but with different sizes. With impregnation method, catalysts having smaller RuO 2 crystallite sizes can be obtained than with deposition-precipitation method, which is believed to be favorable to the activity.…”
Section: Xrd Hr-tem and N 2 -Bet Analysismentioning
confidence: 84%
“…However, for SnRuO-CP samples, which were prepared with co-precipitation method, there is a high possibility that Ru species enters into the lattice matrix of tetragonal SnO 2 first as Ru 4 + cations to form a non-continuous solid solution structure with a certain capacity. [27,28] Until the Ru 4 + amount reaches the lattice capacity, RuO 2 micro crystallites will then be formed on the Sn-RuÀ O solid solution surface and become detectable by XRD. [27,28] As discussed in our previous work, if two metal cations have close radii and similar oxidation states, a solid solution structure inclines to be formed by dissolving the solute cations into the lattice of a solvent metal oxide with a certain lattice capacity.…”
Section: Xrd Hr-tem and N 2 -Bet Analysismentioning
confidence: 99%
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