Effect of pH of precipitation on the preparation of high surface area aluminas from nitrate solutions

被引：48

作者：

Hellgardt, K ^{[1
]}

Chadwick, D ^{[1
]}

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Dept Chem Engn & Chem Technol, London SW7 2BY, England

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 1998年 / 37卷 / 02期

关键词：

D O I：

10.1021/ie970591a

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The influence of the pH of precipitation on the morphology and the nitrate retention of aluminas prepared from nitrate solutions has been investigated. pH control causes the BET surface area of gamma-alumina to vary between 180 and 410 m(2)/g and determines the extent of microporosity within the aluminas. Particle sizes derived from XRD data are compared to values quoted in the open literature. Strong retention of nitrate ion was found for precipitation at pH below the PZC; at the same time, the precipitate density was sharply lowered. However, nitrate retention did not adversely affect the development of surface area following heat treatment.

引用

页码：405 / 411

页数：7

共 50 条

[21] Low temperature synthesis of nanocrystalline magnesium aluminate with high surface area by surfactant assisted precipitation method: Effect of preparation conditions
Mosayebi, Zeinab
Rezaei, Mehran
Hadian, Narges
Kordshuli, Fazlollah Zareie
Meshkani, Fereshteh
MATERIALS RESEARCH BULLETIN, 2012, 47 (09) : 2154 - 2160
[22] PREPARATION OF ALUMINUM HYDROXIDE GELS BY PRECIPITATION - EFFECT OF PROTON ACCEPTORS ON SURFACE-AREA AND POROSITY
BAKOYANNAKIS, DN
STALIDIS, GA
ZAMBOULIS, DX
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY, 1992, 53 (01) : 39 - 43
[23] Silica Precipitation in Acidic Solutions: Mechanism, pH Effect, and Salt Effect
Gorrepati, Elizabeth A.
Wongthahan, Pattanapong
Raha, Sasanka
Fogler, H. Scott
LANGMUIR, 2010, 26 (13) : 10467 - 10474
[24] EFFECT OF PH ON ANODIC BEHAVIOR OF IRON IN ACID NITRATE SOLUTIONS
UZLYUK, MV
FEDOROV, YV
SHATUKHINA, LI
PROTECTION OF METALS, 1978, 14 (01): : 74 - 75
[25] PRECIPITATION OF BISMUTH FROM NITRATE SOLUTIONS AT THE ADDITION OF AMMONIA OR WATER
AFONINADROZDOVA, LI
YUKHIN, YM
TATARINTSEVA, MI
IZVESTIYA SIBIRSKOGO OTDELENIYA AKADEMII NAUK SSSR SERIYA KHIMICHESKIKH NAUK, 1989, (06): : 30 - 35
[26] THE PRECIPITATION OF RUTHENIUM FROM NITRATE SOLUTIONS WITH INORGANIC AND ORGANIC SULPHIDES
MOORE, RL
JOURNAL OF INORGANIC & NUCLEAR CHEMISTRY, 1960, 14 (1-2): : 38 - 41
[27] PRECIPITATION OF SODIUM AND POTASSIUM FLUOROSILICATES FROM NITRATE - PHOSPHATE SOLUTIONS
GOLDINOV, AL
ABRAMOV, OB
JOURNAL OF APPLIED CHEMISTRY OF THE USSR, 1978, 51 (07): : 1400 - 1403
[28] HYDROTHERMAL PRECIPITATION OF URANIUM DIOXIDE FROM URANYL NITRATE SOLUTIONS
ROBINS, RG
JOURNAL OF APPLIED CHEMISTRY, 1966, 16 (06): : 187 - +
[29] Condensation-Enhanced Self-Assembly as a Route to High Surface Area α-Aluminas
Perez, Lidia Lopez
Zarubina, Valeriya
Heeres, Hero Jan
Melian-Cabrera, Ignacio
CHEMISTRY OF MATERIALS, 2013, 25 (20) : 3971 - 3978
[30] Pivotal role of pH value in the preparation of mesoporous silica with high surface area for toluene adsorption
Wang, Tianwen
Li, Yuanzhi
Wu, Jichun
Hu, Yaqi
MATERIALS LETTERS, 2024, 364

← 1 2 3 4 5 →