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Study on Interaction Between Two Parallel Plates with Iteration Method in Functional Theory
Ming Zhou,Zheng-wu Wang*,Zu-min Xu
Author NameAffiliationE-mail
Ming Zhou Department of Food Science and Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China; School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China  
Zheng-wu Wang* Department of Food Science and Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China zhengwuwang@hotmail.com 
Zu-min Xu School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China  
Abstract:
By introducing the functional theory into the calculation of electric double layer (EDL) interaction, the interaction energies of two parallel plates were calculated respectively at low, moderate, and high potentials. Compared with the results of two existing methods, Debye-H?uckel and Langmuir methods, which are applicable just to the critical potentials and perform poorly in the intermediate potential, the functional approach not only has much simpler expression of the EDL interaction energy, but also performs well in the entire range of potentials.
Key words:  Interaction energy, Functional theory, Electric double layer, Parallel plate
FundProject:国家自然科学基金,高校基金
Study on Interaction Between Two Parallel Plates with Iteration Method in Functional Theory
周明,王正武*,徐祖民
摘要:
利用泛函分析理论中的迭代法,分别计算了平行平板双电层在高、中、低电位下的相互作用能,并以数值法所得结果为参照,在各电位下分别与Debye-Hückel线性近似法、Langmuir近似法所得的结果进行比较.结果表明,DH线性近似法和Langmuir近似法均只能分别局限于极低或极高电位,而泛函迭代法不但有简单的解析表达式,而且在各种电位下都能得到较满意的结果.
关键词:  相互作用能,泛函理论,双电层,平行平板
DOI:10.1088/1674-0068/21/02/131-135
分类号: