The Impact of the Polymer Chain Length on the Catalytic Activity of Poly(N-vinyl-2-pyrrolidone)-supported Gold Nanoclusters.
The Impact of the Polymer Chain Length on the Catalytic Activity of Poly(N-vinyl-2-pyrrolidone)-supported Gold Nanoclusters.
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聚合物链长度对聚（N-乙烯基-2-吡咯酮）硫化金纳米簇的催化活性的影响。
DOI：
10.1038/s41598-017-10165-9
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发表时间：
2017-08-29
影响因子：
4.6
通讯作者：
Sakurai H
中科院分区：
文献类型：
--
作者：
Haesuwannakij S;Kimura T;Furutani Y;Okumura K;Kokubo K;Sakata T;Yasuda H;Yakiyama Y;Sakurai H
Poly(N-vinyl-2-pyrrolidone) (PVP) of varying molecular weight (M w = 40-360 kDa) were employed to stabilize gold nanoclusters of varying size. The resulting Au:PVP clusters were subsequently used as catalysts for a kinetic study on the sized-dependent aerobic oxidation of 1-indanol, which was monitored by time-resolved in situ infrared spectroscopy. The obtained results suggest that the catalytic behaviour is intimately correlated to the size of the clusters, which in turn depends on the molecular weight of the PVPs. The highest catalytic activity was observed for clusters with a core size of ~7 nm, and the size of the cluster should increase with the molecular weight of the polymer in order to maintain optimal catalytic activity. Studies on the electronic and colloid structure of these clusters revealed that the negative charge density on the cluster surface also strongly depends on the molecular weight of the stabilizing polymers.
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影响因子：
15
作者：
Han, Jie;Liu, Yan;Guo, Rong
通讯作者：
Guo, Rong
影响因子：
9.9
作者：
Ishida, Tamao;Kuroda, Kyoko;Haruta, Masatake
通讯作者：
Haruta, Masatake
影响因子：
1.6
作者：
Kamiya, Ikuyo;Tsunoyama, Hironori;Sakurai, Hidehiro
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Sakurai, Hidehiro
影响因子：
4.9
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Ohyama, Junya;Koketsu, Taiki;Satsuma, Atsushi
通讯作者：
Satsuma, Atsushi
影响因子：
2.8
作者：
Okumura, Mitsutaka;Kitagawa, Yasutaka;Haruta, Masatake
通讯作者：
Haruta, Masatake