Study on the thermal decomposition of a copper-containing hydrotalcite-like catalytic material

Bin Wen; Ming Yuan He; Jia Qing Song; Bao Ning Zong; Yong Lu

Study on the thermal decomposition of a copper-containing hydrotalcite-like catalytic material

Bin Wen^*
, Ming Yuan He
, Jia Qing Song
, Bao Ning Zong
, Yong Lu

^*Corresponding author for this work

SINOPEC

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

The hydrotalcite like compound Cu_{0. 13}Mg_{0. 6}A_{10. 27}(OH)₂(CO₃)_{0. 135} · xH₂O (CuHTlc) are synthesized by coprecipitation method and are characterized by XRD, DTA-TG, BET, TEM and ²⁷Al MAS NMR. The results show that at relatively low calcination temperatures (below 300°C), the layer structure of CuHTlc is retained, although partial dehydroxylation in addition to dehydration occurs. At 500°C, the hydrotalcite structure is destroyed and MgO phase appears, the spinel phase forms with the further increase of calcination temperature. CuHTlc calcined at 500°C has the highest surface area (193m² · g^-1). When CuHTlc are calcined above 500°C, the composition of resusting products is Cu_{0. 13}Mg_{0. 6}Al_{0. 27}O_{0. 135}, the equation of thermal decoposition of CuHTlc can be expressed as following: Cu_{0. 13}Mg_{0. 6}Al_{0. 27}(OH)₂(CO₃)_{0. 135} · xH₂O → Cu_{0. 13}Mg_{0. 6}Al_{0. 27}O_{0. 135} + (1 + x)H₂O + 0. 135CO₂.

Original language	English
Pages (from-to)	58-62
Number of pages	5
Journal	Chinese Journal of Inorganic Chemistry
Volume	16
Issue number	1
State	Published - Jan 2000
Externally published	Yes

Keywords

Calcination temperature
Hydrotalcite like compound
Thermal decomposition

Cite this

@article{78e16dcc04094138a9b9dc5dda3c9ad9,

title = "Study on the thermal decomposition of a copper-containing hydrotalcite-like catalytic material",

abstract = "The hydrotalcite like compound Cu0. 13Mg0. 6A10. 27(OH)2(CO3)0. 135 · xH2O (CuHTlc) are synthesized by coprecipitation method and are characterized by XRD, DTA-TG, BET, TEM and 27Al MAS NMR. The results show that at relatively low calcination temperatures (below 300°C), the layer structure of CuHTlc is retained, although partial dehydroxylation in addition to dehydration occurs. At 500°C, the hydrotalcite structure is destroyed and MgO phase appears, the spinel phase forms with the further increase of calcination temperature. CuHTlc calcined at 500°C has the highest surface area (193m2 · g-1). When CuHTlc are calcined above 500°C, the composition of resusting products is Cu0. 13Mg0. 6Al0. 27O0. 135, the equation of thermal decoposition of CuHTlc can be expressed as following: Cu0. 13Mg0. 6Al0. 27(OH)2(CO3)0. 135 · xH2O → Cu0. 13Mg0. 6Al0. 27O0. 135 + (1 + x)H2O + 0. 135CO2.",

keywords = "Calcination temperature, Hydrotalcite like compound, Thermal decomposition",

author = "Bin Wen and He, \{Ming Yuan\} and Song, \{Jia Qing\} and Zong, \{Bao Ning\} and Yong Lu",

year = "2000",

month = jan,

language = "英语",

volume = "16",

pages = "58--62",

journal = "Chinese Journal of Inorganic Chemistry",

issn = "1001-4861",

publisher = "Chinese Chemical Society",

number = "1",

}

TY - JOUR

T1 - Study on the thermal decomposition of a copper-containing hydrotalcite-like catalytic material

AU - Wen, Bin

AU - He, Ming Yuan

AU - Song, Jia Qing

AU - Zong, Bao Ning

AU - Lu, Yong

PY - 2000/1

Y1 - 2000/1

N2 - The hydrotalcite like compound Cu0. 13Mg0. 6A10. 27(OH)2(CO3)0. 135 · xH2O (CuHTlc) are synthesized by coprecipitation method and are characterized by XRD, DTA-TG, BET, TEM and 27Al MAS NMR. The results show that at relatively low calcination temperatures (below 300°C), the layer structure of CuHTlc is retained, although partial dehydroxylation in addition to dehydration occurs. At 500°C, the hydrotalcite structure is destroyed and MgO phase appears, the spinel phase forms with the further increase of calcination temperature. CuHTlc calcined at 500°C has the highest surface area (193m2 · g-1). When CuHTlc are calcined above 500°C, the composition of resusting products is Cu0. 13Mg0. 6Al0. 27O0. 135, the equation of thermal decoposition of CuHTlc can be expressed as following: Cu0. 13Mg0. 6Al0. 27(OH)2(CO3)0. 135 · xH2O → Cu0. 13Mg0. 6Al0. 27O0. 135 + (1 + x)H2O + 0. 135CO2.

AB - The hydrotalcite like compound Cu0. 13Mg0. 6A10. 27(OH)2(CO3)0. 135 · xH2O (CuHTlc) are synthesized by coprecipitation method and are characterized by XRD, DTA-TG, BET, TEM and 27Al MAS NMR. The results show that at relatively low calcination temperatures (below 300°C), the layer structure of CuHTlc is retained, although partial dehydroxylation in addition to dehydration occurs. At 500°C, the hydrotalcite structure is destroyed and MgO phase appears, the spinel phase forms with the further increase of calcination temperature. CuHTlc calcined at 500°C has the highest surface area (193m2 · g-1). When CuHTlc are calcined above 500°C, the composition of resusting products is Cu0. 13Mg0. 6Al0. 27O0. 135, the equation of thermal decoposition of CuHTlc can be expressed as following: Cu0. 13Mg0. 6Al0. 27(OH)2(CO3)0. 135 · xH2O → Cu0. 13Mg0. 6Al0. 27O0. 135 + (1 + x)H2O + 0. 135CO2.

KW - Calcination temperature

KW - Hydrotalcite like compound

KW - Thermal decomposition

UR - https://www.scopus.com/pages/publications/0006379377

M3 - 文章

AN - SCOPUS:0006379377

SN - 1001-4861

VL - 16

SP - 58

EP - 62

JO - Chinese Journal of Inorganic Chemistry

JF - Chinese Journal of Inorganic Chemistry

IS - 1

ER -

Study on the thermal decomposition of a copper-containing hydrotalcite-like catalytic material

Abstract

Keywords

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