Facile Synthesis of Size-controlled Rh Nanoparticles via Microwave-assisted Alcohol Reduction and Their Catalysis of CO Oxidation
Facile Synthesis of Size-controlled Rh Nanoparticles via Microwave-assisted Alcohol Reduction and Their Catalysis of CO Oxidation
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DOI：
10.1246/cl.170440
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发表时间：
2017-06
影响因子：
1.6
通讯作者：
Y. Nishida;Katsutoshi Sato;Tomokazu Yamamoto;Dongshuang Wu;K. Kusada;Hirokazu Kobayashi;S. Matsumura;H. Kitagawa;Katsutoshi Nagaoka
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文献类型：
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作者：
Y. Nishida;Katsutoshi Sato;Tomokazu Yamamoto;Dongshuang Wu;K. Kusada;Hirokazu Kobayashi;S. Matsumura;H. Kitagawa;Katsutoshi Nagaoka
通过醇还原法快速合成了聚乙烯吡咯烷酮稳定的尺寸可控的Rh纳米粒子。在密闭容器中的微波辅助合成允许在相同的制备条件下将具有低沸点到高沸点的醇用作还原剂。纯乙醇以前没有使用过，因为它的沸点低于Rh3+还原所需的温度。醇类化合物具有较强的还原能力，可以得到较小的Rh纳米粒子。随着Rh粒径的减小，CO氧化能力增强。
Size-controlled Rh nanoparticles stabilized by poly(vinylpyrrolidone) were quickly synthesized via alcohol reduction. Microwave-assisted synthesis in closed vessels allowed alcohols with low-to-high boiling points to be used as reductants under the same preparation conditions. Pure ethanol has not been used previously because its boiling point is lower than the temperature required for Rh3+ reduction. Alcohols with relatively strong reduction ability were found to lead to smaller Rh nanoparticles. The ability to oxidize CO was enhanced as the Rh particle size decreased.