High-temperature heterogeneous catalysis in platinum nanoparticle - molten salt suspensions

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High-temperature heterogeneous catalysis in platinum nanoparticle - molten salt suspensions

机译：高温多相催化的铂纳米颗粒-熔盐悬浮液

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Suspensions of platinum nanoparticles (PtNPs) were formed in molten LiCl-LiBr-KBr via thermal decomposition of H2PtCl6, and subsequently evaluated for thermal stability and CO oxidation activity. Significant nanoparticle (NP) aggregation was observed above 500 degrees C, and the heat capacity of the melt with PtNPs was 47% higher than the salt alone, further increasing with NP concentration. CO oxidation was observed when PtNPs were present in the melt, which, together with measured changes in surface tension, support the hypothesis that gas-solid catalysis at the gas-nanoparticle-melt interface is indeed possible, opening up a new approach for heterogeneous catalysis.

机译：铂纳米颗粒悬浮液(PtNPs)在熔融形成LiCl-LiBr-KBr通过热H2PtCl6分解,随后评估热稳定性和氧化活动。聚合是观察到500摄氏度以上,热容的融化PtNPs是47%仅高于盐,进一步增加与NP浓度。PtNPs出现在融化时,一起测量表面的变化紧张,支持气固的假设催化gas-nanoparticle-melt接口确实是可能的,开放的新方法多相催化。

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《Catalysis science & technology》 |2020年第3期|625-629|共5页
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正文语种英语
中图分类汉语教学;
关键词
thermal dissociation; thermal degradation; Heat capacityNanoparticlesSaltslung alveolus surface tensionHeterogeneous catalysisMoltenplatinumAlveolar surface tensionNP;

机译：热离解;热降解;热量capacityNanoparticlesSaltslung肺泡表面tensionHeterogeneouscatalysisMoltenplatinumAlveolar表面tensionNP;

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6. Euchem 2002 Molten Salts Conference, St. John's College, Oxford, UK, 1-6 September 2002 [R] . 2002

机译：Euchem 2002 molten salts Conference，st. John's College，Oxford，UK，2002年9月1日至6日

High-temperature heterogeneous catalysis in platinum nanoparticle - molten salt suspensions

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