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年产5t纳米二氧化钛中试研究 被引量:19
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作者 雷阎盈 余历军 +2 位作者 吴金龙 祝新炎 杜继涛 《西北大学学报(自然科学版)》 CAS CSCD 北大核心 2003年第1期37-40,共4页
用均匀沉淀法制备纳米TiO2中试研究表明:尿素水解和沉淀反应采用间歇操作的搅拌釜式反应器是合适的;小试提供的原料路线是可行的,工艺条件是正确的;进一步放大在满足工艺条件的前提下,反应前升温的供热强度不小于60kJ/(min·L);反... 用均匀沉淀法制备纳米TiO2中试研究表明:尿素水解和沉淀反应采用间歇操作的搅拌釜式反应器是合适的;小试提供的原料路线是可行的,工艺条件是正确的;进一步放大在满足工艺条件的前提下,反应前升温的供热强度不小于60kJ/(min·L);反应结束后的冷却换热强度不小于27kJ/(min·L)。 展开更多
关键词 纳米二氧化钵 中试研究 制备工艺 功能材科 尿素水解 均匀沉淀法 搅拌釜式反应器
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Theoretical methods for excited state dynamics of molecules and molecular aggregates 被引量:1
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作者 SHI Qiang CHEN Hui 《Science China Chemistry》 SCIE EI CAS 2013年第9期1271-1276,共6页
This contribution provides a summary of proposed theoretical and computational studies on excited state dynamics in molecular aggregates, as an important part of the National Natural Science Foundation (NNSF) Major Pr... This contribution provides a summary of proposed theoretical and computational studies on excited state dynamics in molecular aggregates, as an important part of the National Natural Science Foundation (NNSF) Major Project entitled "Theoretical study of the low-lying electronic excited state for molecular aggregates". This study will focus on developments of novel methods to simulate excited state dynamics of molecular aggregates, with the aim of understanding several important chemical physics processes, and providing a solid foundation for predicting the opto-electronic properties of organic functional materials and devices. The contents of this study include: (1) The quantum chemical methods for electronic excited state and electronic couplings targeted for dynamics in molecular aggregates; (2) Methods to construct effective Hamiltonian models, and to solve their dynamics using system-bath approaches; (3) Non-adiabatic mixed quantum-classic methods targeted for molecular aggregates; (4) Theoretical studies of charge and energy transfer, and related spectroscopic phenomena in molecular aggregates. 展开更多
关键词 excited state dynamics molecular aggregates effective Hamiltonian models mixed quantum-classical dynamics
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