英语词汇“molecular sieve”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

molecular sieve n. a substance containing in its crystal structure pores and channels of molecular dimensions that permit the passage of certain small molecules but are impervious to others; esp. a zeolite used as a selective adsorbent; any physical matrix used to separate molecules by size.

ΚΠ

1926 Colloid Symp. Monogr. 4 11 Collander's work on the sieve structure of semipermeable membranes of copper ferrocyanide has shown that the interstices between the micelles or aggregates are about 4 Ångstrom units in diameter. I would suggest a better molecular sieve, namely such crystals as dehydrated zeolites, etc.

1949 Discuss. Faraday Soc. 7 135 By cation interchange and by burning out interstitial ammonium ions a diversity of modified molecular-sieve sorbents can be produced.

1965 C. S. G. Phillips & R. J. P. Williams Inorg. Chem. I. xiv. 544 The molecular-sieve zeolites, sodium and calcium aluminosilicates, are used to fractionate noble gases and low molecular weight molecules generally.

1966 McGraw-Hill Encycl. Sci. & Technol. (rev. ed.) VIII. 547/1 Molecular sieves are capable of drying gases and liquids to extremely low residual water concentrations.

1988 L. Stryer Biochem. (ed. 3) iii. 44 Gels serve as molecular sieves that enhance separation.

1998 New Scientist 28 Mar. 11/3 Designer molecular sieves that could be used for anything from weatherproofing surfaces to making effluent filters..have been developed by chemists in America.

单词	molecular sieve
释义	> as lemmas molecular sieve molecular sieve n. a substance containing in its crystal structure pores and channels of molecular dimensions that permit the passage of certain small molecules but are impervious to others; esp. a zeolite used as a selective adsorbent; any physical matrix used to separate molecules by size. ΚΠ 1926 Colloid Symp. Monogr. 4 11 Collander's work on the sieve structure of semipermeable membranes of copper ferrocyanide has shown that the interstices between the micelles or aggregates are about 4 Ångstrom units in diameter. I would suggest a better molecular sieve, namely such crystals as dehydrated zeolites, etc. 1949 Discuss. Faraday Soc. 7 135 By cation interchange and by burning out interstitial ammonium ions a diversity of modified molecular-sieve sorbents can be produced. 1965 C. S. G. Phillips & R. J. P. Williams Inorg. Chem. I. xiv. 544 The molecular-sieve zeolites, sodium and calcium aluminosilicates, are used to fractionate noble gases and low molecular weight molecules generally. 1966 McGraw-Hill Encycl. Sci. & Technol. (rev. ed.) VIII. 547/1 Molecular sieves are capable of drying gases and liquids to extremely low residual water concentrations. 1988 L. Stryer Biochem. (ed. 3) iii. 44 Gels serve as molecular sieves that enhance separation. 1998 New Scientist 28 Mar. 11/3 Designer molecular sieves that could be used for anything from weatherproofing surfaces to making effluent filters..have been developed by chemists in America. extracted from molecularadj.n. < as lemmas
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> as lemmas