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liangxuan金蟲 (小有名氣)
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[交流]
【求助】請問材料的表面電負(fù)性怎么測試
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大家好: 在實(shí)驗(yàn)的過程中,我想表征材料表面的電負(fù)性,之前我測過ZETA電位,但是數(shù)據(jù)不是很理想,而且重復(fù)測試的數(shù)據(jù)結(jié)果差別很大(?), 想在此請教下各位,如何來表征材料的電負(fù)性(固體粉末;80目;不溶于水) 先謝謝啦, O(∩_∩)O |
金蟲 (小有名氣)
至尊木蟲 (著名寫手)

金蟲 (小有名氣)
至尊木蟲 (著名寫手)

至尊木蟲 (著名寫手)
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在Pauling電負(fù)性基礎(chǔ)上發(fā)展起來的Sanderson電負(fù)性從電荷均衡原理出發(fā),采用組成化合物中各元素電負(fù)性的幾何平均值來表示化合物的電負(fù)性。如Al、Ti、Zr、Si、Nb和O元素的Sanderson電負(fù)性分別為1.54、1.13、1.00、1.74、1.12和3.46。 1)Connell, G., Dumesic, J. A., J. Catal., 1987,105,285 2)Sanderson R. T., Poler C., New York: Acadmic press,1983,17 3)Huheey, J. E.; Keiter, E. A.; Keiter, R. L. Inorganic Chemistry: Principles of Structure and Reactivity 4th. Edition, Harpercollins, New York, USA,1993 [ Last edited by aust_jhe on 2010-8-19 at 20:49 ] |

至尊木蟲 (著名寫手)
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Sanderson electronegativity Sanderson has also noted the relationship between electronegativity and atomic size, and has proposed a method of calculation based on the reciprocal of the atomic volume。With a knowledge of bond lengths, Sanderson electronegativities allow the estimation of bond energies in a wide range of compounds Also Sanderson electronegativities were used to calculate molecular geometry, s-electrons energy, NMR spin-spin constants and other parameters for organic compounds.[This work underlies the concept of electronegativity equalization, which suggests that electrons distribute themselves around a molecule to minimize the energy, or to equalize the electronegativity This behavior is analogous to the equalization of chemical potential in macroscopic thermodynamics. |

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