Selective extraction of supported Rh nanoparticles under mild, non-acidic conditions with carbon monoxide.
Selective extraction of supported Rh nanoparticles under mild, non-acidic conditions with carbon monoxide.
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在温和、非酸性条件下用一氧化碳选择性萃取负载型 Rh 纳米颗粒。
DOI:
10.1039/c8ta06508j
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
Denmark,ScottE
中科院分区:
文献类型:
--
作者:
Ibrahim,MalekYS;Denmark,ScottE
Owing to their limited supplies, recycling of precious metals, especially rhodium, is vital to sustain the growth of certain nanotechnologies. Here we report a mild, efficient, and selective method for rhodium recovery that relies on the use of carbon monoxide to extract rhodium nanoparticles on various supports in polar solvents. Unlike the traditional recycling technologies, this method operates at low temperature and does not require strong acids. Moreover, the CO-induced leaching is complimentary to leaching by acids in terms of selectivity toward rhodium versus other precious metals and results in metal recovery in the form of reduced metallic clusters. The method performs best on freshly reduced surfaces and can be promoted by the addition of tertiary amines. Besides CO gas, formic acid can also be used as a leachant by decomposition to produce CO by Rh catalysis. The concept of CO-induced leaching could be applied to the extraction of rhodium from nuclear waste and extended to modify rhodium nanoparticle size and composition.
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DOI:
--
发表时间:
1983
期刊:
影响因子:
--
作者:
A. Erdöhelyi;F. Solymosi
通讯作者:
F. Solymosi
影响因子:
2.8
作者:
P. Chini;S. Martinengo
通讯作者:
S. Martinengo
DOI:
10.1039/dc9908900091
发表时间:
1990
期刊:
Faraday Discussions of The Chemical Society
影响因子:
--
作者:
P. Johnston;R. Joyner;P. Pudney;E. S. Shpiro;B. Williams
通讯作者:
B. Williams
DOI:
10.1039/c29690001092
发表时间:
1969
期刊:
Journal of The Chemical Society D: Chemical Communications
影响因子:
--
作者:
P. Chini;S. Martinengo
通讯作者:
S. Martinengo
影响因子:
4.6
作者:
P. Chini
通讯作者:
P. Chini