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单词 molybdena
释义

molybdena

英汉-汉英词典
氧化钼
词组 | 习惯用语
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  • molybdenum n. [化]钼(元素符号Mo)
  • molybdenite n. 辉钼矿
  • polybutene n. 聚(异)丁烯(润滑油)
  • labiodental adj. 唇齿音的; n. 唇齿音
molybdena n. 氧化钼

网络短语:
molybdena crystal 氧化钼晶体
molybdena catalyst 钼氧触媒; 钼氧催化剂;
molybdena a 氧化钼
molybdena molybdic oxide molybdenum oxide 氧化钼
英语百科

Molybdenite

A sample of molybdenite mineral less pure than the single-crystal specimen at right.

Molybdenite is a mineral of molybdenum disulfide, MoS2. Similar in appearance and feel to graphite, molybdenite has a lubricating effect that is a consequence of its layered structure. The atomic structure consists of a sheet of molybdenum atoms sandwiched between sheets of sulfur atoms. The Mo-S bonds are strong, but the interaction between the sulfur atoms at the top and bottom of separate sandwich-like tri-layers is weak, resulting in easy slippage as well as cleavage planes. Molybdenite crystallizes in the hexagonal crystal system as the common polytype 2H and also in the trigonal system as the 3R polytype.

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