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- Lewis碱 Lewis base
- Lewis碱改性氧化锆基质色谱固定相的研究进展 Development of Lewis Base-Modified Zirconia as Stationary Phases for High Performance Liquid Chromatography
- FePO4 和AlPO4 间隔分布在催化剂表面 ,形成Lewis碱位 (P =O ,P O Fe)和Lewis酸位 (Fe3 + ,Al3 + ) . FePO 4 and AlPO 4 distribute at intervals, and there exist Lewis base sites (P=O and P-O-Fe) and Lewis acid sites (Fe 3+ and Al 3+) on the catalyst surface.
- 碱 alkali
- 催化剂表面由Lewis碱位(MoO键的端氧和Fe-O-Mo键中的桥氧)及Lewis酸位构成。 There existed both Lewis acid sites(Fe~(3+),Mo~(6+)) and Lewis base sites(oxygen of Mo=O and Mo-O-Fe bond) on the surface of the catalysts.
- 实验结果表明:在Cu/V2O5-TiO2催化剂表面存在金属位Cu、Lewis酸位V5+和Ti4+以及Lewis碱位V-O-Ti的桥氧和V=O的端氧三类活性中心; The experimental results pointed out that the three kinds of active sites exist on the surface of the catalysts: Metallic site Cu, Lewis acid sites V~(5+) and Ti~(4+), Lewis base sites bridge O in V-O-Ti and terminal O in V=O.
- 碱基 base
- 碱液 lye
- 酸碱 acid-base
- 碱的 alkaline
- 甜菜碱 lycine
- 碱水 buck
- 左旋肉碱 l-cn
- 秋水仙碱 colchicine
- 碱洗 caustic wash
- 耐酸碱 acid and alkali-resistance
- 肉碱 carnitine
- 液碱 liquid caustic soda
- 耐碱 alkaline-resisting
- 酸碱平衡 acid base balance
