Reversible Transformations of Gold Nanoparticle Morphology Письма в редакцию
Журнал |
Langmuir
ISSN: 0743-7463 , E-ISSN: 1520-5827 |
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Вых. Данные | Год: 2005, Том: 21, Номер: 23, Страницы: 10280-10283 Страниц : 4 DOI: 10.1021/la051699v | ||||||
Ключевые слова | SHAPE-CONTROLLED SYNTHESIS; SCALE SYNTHESIS; ALKYL CHAIN; NANOCRYSTALS; NANOSPHERES; GROWTH; LENGTH; PHASE; SIZE | ||||||
Авторы |
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Организации |
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Информация о финансировании (2)
1 | National Science Foundation | |
2 | Kansas State University |
Реферат:
Herein is reported a metamorphosis taking place in a gold nanosized system. The observed phenomenon of shape and size transformations was found to be completely reversible. Unlike most procedures in the literature where shape and size control occur in the synthetic step by adding growth- and shape-controlling agents such as surfactants or polymers, in this system postsynthetic changes in shape and size can be carried out simply by changing the ratio of reactive, competing reagents, more specifically, alkylthiols versus tetralkylammonium salts. Interestingly, the transfer of gold metal occurs (large prismatic particles to small particles and vice versa) under the influence of reagents that do not cause such interactions with bulk gold. All intermediate steps of the morphology change were observed using HRTEM and electron diffraction. The processes of breaking down and “welding back” solid metal nanoparticles occur under mild conditions and are remarkable examples of the unique chemical properties of nanomaterials. The described process is expected to be relevant to other nanoscale systems where similar structural circumstances could occur.
Библиографическая ссылка:
Stoeva S.I.
, Zaikovski V.
, Prasad B.L.V.
, Stoimenov P.K.
, Sorensen C.M.
, Klabunde K.J.
Reversible Transformations of Gold Nanoparticle Morphology
Langmuir. 2005. V.21. N23. P.10280-10283. DOI: 10.1021/la051699v WOS Scopus РИНЦ
Reversible Transformations of Gold Nanoparticle Morphology
Langmuir. 2005. V.21. N23. P.10280-10283. DOI: 10.1021/la051699v WOS Scopus РИНЦ
Даты:
Поступила в редакцию: | 24 июн. 2005 г. |
Принята к публикации: | 1 сент. 2005 г. |
Опубликована online: | 27 сент. 2005 г. |
Опубликована в печати: | 1 нояб. 2005 г. |
Идентификаторы БД:
Web of science | WOS:000233129500008 |
Scopus | 2-s2.0-28044449381 |
РИНЦ | 13484986 |
Chemical Abstracts | 2005:1033592 |
Chemical Abstracts (print) | 144:9561 |
OpenAlex | W1970618547 |