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chenhongyu86

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[交流] 【请教】nanocluster 和 nanoparticles 的区别是什么啊 哪位大侠帮帮忙啊

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weihui_cn

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wandaohzl:鼓励交流 2011-01-07 10:01:40
a special type of ultra-small gold nanoparticles (<2 nm core diameter) protected by thiolate ligands, so-called gold nanoclusters (or clusters for short).

Of special note, herein we reserve the term “gold nanoclusters” or “gold clusters” for those ultra-small gold nanoparticles that exhibit a discrete electronic structure (as opposed to the quasicontinuous band structure in Au nanocrystals). Many researchers have, instead, used the same terminology to cover the entire size range of Au nanoparticles from 1 to 100 nm, such as in the classic book by Kreibig and Vollmer.8 These authors used terms “very small clusters” to refer to 2–20 atoms, “small clusters” (20–500 atoms), and “large clusters” (500–107 atoms). We thought that the special range of subnanometre to 2 nm for gold nanoparticles may deserve a special term to describe them, as these ultra-small nanoparticles are vastly different to larger Au nanoparticles in terms of atomic packing, electronic structure, magnetism, electrochemical and charge transport properties. The non-unified nomenclature may confuse new practitioners in the field.



http://www.rsc.org/delivery/_Art ... 9nr00160c&Iss=3

[ Last edited by weihui_cn on 2011-1-7 at 01:23 ]
9楼2011-01-07 01:19:52
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lzusxl

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chenhongyu86(金币+1): 2011-01-06 18:54:36
我只见过 团簇是说单质的~ 颗粒是说氧化物的~
我可没有见过说比如CuO 团簇的
2楼2011-01-06 14:34:59
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yes_zhu

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chenhongyu86(金币+1): 2011-01-06 15:12:55
wandaohzl:鼓励交流 2011-01-07 10:01:02
cluster <1nm
nanoparticle 1~100 nm
3楼2011-01-06 15:03:58
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游云流水

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chenhongyu86(金币+1): 2011-01-06 18:54:27
wandaohzl:鼓励交流 2011-01-07 10:01:08
cluster相比particle要小。一般而言cluster的数量是几个到十几个原子。
4楼2011-01-06 17:15:36
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