2009
DOI: 10.1016/j.jssc.2008.09.014
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Effect of hydrothermal treatment on properties of Ni–Al layered double hydroxides and related mixed oxides

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Cited by 105 publications
(57 citation statements)
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“…[13][14][15][16][17][18] As curvas TGA das amostras são mostradas na Figura 1a. As amostras HTC1 e MgAlc apresentam características comuns entre si, com dois principais estágios de perda de massa.…”
Section: Resultsunclassified
See 1 more Smart Citation
“…[13][14][15][16][17][18] As curvas TGA das amostras são mostradas na Figura 1a. As amostras HTC1 e MgAlc apresentam características comuns entre si, com dois principais estágios de perda de massa.…”
Section: Resultsunclassified
“…O uso de hidróxidos duplos lamelares, também chamados de compostos tipo hidrotalcita (HTC), tem mostrado grande importância tecnológica na obtenção de novos materiais catalíticos para HDT. O mineral hidrotalcita é um hidróxido duplo com estrutura lamelar e uma argila aniônica de ocorrência natural, que possui estrutura tipo brucita [Mg(OH) 2 ] e fórmula molecular Mg 6 Al 2 (OH) 16 CO 3 .4H 2 O. 6 A possível substituição dos cátions Mg 2+ e Al 3+ por outros íons metálicos permite a obtenção de uma gama imensa de materiais a serem explorados.…”
Section: Introductionunclassified
“…1b). The unit cell parameter (a) of cubic NiO in the NA sample of 0.4143 nm (Table 2) is less than the 0.4177 nm for pure NiO [34]. The lower а suggests structural disordering and incorporation of Al 3+ with its smaller ionic radius than Ni 2+ .…”
Section: Xrd Analysis and Specific Surface Areamentioning
confidence: 90%
“…2) gave a peak with a maximum at 519°С. Reduction of Ni-Al-O samples is well known to depend on the Ni/Al ratio and preparation method [34,36] The NAV profile differs from that of NA by the addition of a low-temperature peak at 338 о С to the main peak at 501 о С. Similar results were obtained [37], where Ni-Al with a 3:1 Ni/Al ratio was reduced at 665 о С, while a vanadiumdoped sample was reduced in peaks at 380 and 561 о С.…”
Section: Temperature-programmed Reduction By Hydrogenmentioning
confidence: 99%
“…30,31 The synthesis was carried out under N 2 atmosphere, and all solutions were prepared using deionized water to avoid contamination. In the present work, the Ni 2+ :Al 3+ molar ratio chosen for the synthesis of the LDH precursors was 2:1 to obtain stable layered compounds.…”
Section: Preparation Of Nickel-aluminum Layered Double Hydroxidementioning
confidence: 99%