JP2015223535A5 - Palladium core platinum shell nanoparticles, manufacturing apparatus and manufacturing method thereof, and battery - Google Patents

Palladium core platinum shell nanoparticles, manufacturing apparatus and manufacturing method thereof, and battery Download PDF

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JP2015223535A5
JP2015223535A5 JP2014108302A JP2014108302A JP2015223535A5 JP 2015223535 A5 JP2015223535 A5 JP 2015223535A5 JP 2014108302 A JP2014108302 A JP 2014108302A JP 2014108302 A JP2014108302 A JP 2014108302A JP 2015223535 A5 JP2015223535 A5 JP 2015223535A5
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platinum shell
palladium core
palladium
nanoparticle
core
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エチレングリコール（ＥＧ）、パラジウム塩、分散剤を含む第一の原料液を用いて連続フロー系によりマイクロ波を照射しながら合成したパラジウムコアナノ粒子分散液において、前記パラジウムコアナノ粒子の過半数が単結晶であり、かつ、白金シェル形成前はその表面がシェル形成を阻害する物質が存在しない清浄な表面であり、前記パラジウムコアナノ粒子コロイドに塩化白金酸エチレングリコール溶液と水酸化ナトリウム水溶液を加えて白金シェル形成した後はパラジウムコア表面原子層と白金シェル原子層の整合界面が存在することを特徴とするパラジウムコア白金シェルナノ粒子。In a palladium core nanoparticle dispersion liquid synthesized using a first raw material liquid containing ethylene glycol (EG), a palladium salt, and a dispersant while irradiating microwaves with a continuous flow system, a majority of the palladium core nanoparticles are single. Before the platinum shell is formed, the surface is a clean surface free of substances that inhibit the shell formation, and an ethylene glycol chloroplatinate solution and an aqueous sodium hydroxide solution are added to the palladium core nanoparticle colloid. Palladium-core platinum shell nanoparticles characterized by the presence of a matching interface between a palladium core surface atomic layer and a platinum shell atomic layer after the platinum shell is formed. 請求項１に記載のパラジウムコア白金シェルナノ粒子において、白金シェル一層による被覆も含めて、白金シェル層がパラジウムコア表面層の５０％以上を覆っている粒子が過半数を占めることを特徴とするパラジウムコア白金シェルナノ粒子。2. The palladium core platinum shell nanoparticle according to claim 1, wherein a majority of the particles including the platinum shell layer covering 50% or more of the surface layer of the palladium core occupies a majority of the palladium core. Platinum shell nanoparticles. 請求項１または２に記載のパラジウムコア白金シェルナノ粒子において、白金シェル層は水酸化ナトリウムを加えて白金原料の還元反応を促進させて形成したシェル層であり、その前記白金シェル原子層の厚みが１ｎｍ以下であることを特徴とするパラジウムコア白金シェルナノ粒子。The palladium core platinum shell nanoparticles according to claim 1 or 2, wherein the platinum shell layer is a shell layer formed by adding sodium hydroxide to promote a reduction reaction of a platinum raw material, and the thickness of the platinum shell atomic layer is The palladium core platinum shell nanoparticle characterized by being 1 nm or less. 請求項１〜３のいずれか１項に記載のパラジウムコア白金シェルナノ粒子において、パラジウム塩濃度１００ｍＭ以上において合成したパラジウムコア粒子を中間体として経由する、平均粒子径１０ｎｍ以下で、パラジウムコア白金シェルナノ粒子の粒子径のばらつきが±１６．５％以下のパラジウムコア白金シェルナノ粒子。The palladium core platinum shell nanoparticles according to any one of claims 1 to 3, wherein the palladium core platinum shell nanoparticles have an average particle diameter of 10 nm or less and pass through the palladium core particles synthesized at a palladium salt concentration of 100 mM or more as an intermediate. Palladium core platinum shell nanoparticles having a particle size variation of ± 16.5% or less. 請求項１〜４のいずれか１項に記載のパラジウムコア白金シェルナノ粒子と担体を混合して形成する担体担持パラジウムコア白金シェルナノ粒子。The carrier carrying | support palladium core platinum shell nanoparticle formed by mixing the palladium core platinum shell nanoparticle of any one of Claims 1-4, and a support | carrier. 請求項１〜４のいずれか１項に記載のパラジウムコア白金シェルナノ粒子の少なくとも1つの形成過程に担体を共存させることで生成する担体担持パラジウムコア白金シェルナノ粒子。The carrier carrying | support palladium core platinum shell nanoparticle produced | generated by making a support | carrier coexist in the formation process of at least 1 of the palladium core platinum shell nanoparticle of any one of Claims 1-4. 請求項１〜６のいずれか１項に記載のパラジウムコア白金シェルナノ粒子の製造方法。The manufacturing method of the palladium core platinum shell nanoparticle of any one of Claims 1-6. 請求項１〜６のいずれか１項に記載のパラジウムコア白金シェルナノ粒子の製造装置。The manufacturing apparatus of the palladium core platinum shell nanoparticle of any one of Claims 1-6. 請求項１〜６のいずれか１項に記載のパラジウムコア白金シェルナノ粒子を触媒として用いる固体高分子形燃料電池。A polymer electrolyte fuel cell using the palladium core platinum shell nanoparticles according to any one of claims 1 to 6 as a catalyst.
JP2014108302A 2014-05-26 2014-05-26 Palladium core platinum shell nanoparticles, apparatus and method for producing the same, and battery Expired - Fee Related JP6500174B2 (en)

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KR101971260B1 (en) * 2016-09-26 2019-04-22 충남대학교산학협력단 Preparation Method for Cdot-Pt-Pd Composite, Cdot-Pt-Pd Catalyst thereby and Fuel Cell using the Catalyst
JP6859731B2 (en) * 2017-02-07 2021-04-14 株式会社豊田中央研究所 Fuel cell cathode catalyst
JP6573333B2 (en) * 2017-11-07 2019-09-11 株式会社新光化学工業所 Carrier-supported palladium fine particle colloid, carrier-supported palladium core platinum shell fine particle colloid, carrier-supported palladium core platinum shell fine particle catalyst, method for producing them, and battery.
JP6840314B2 (en) * 2019-08-06 2021-03-10 株式会社新光化学工業所 Carrier-supported palladium core platinum shell fine particle colloid, carrier-supported palladium core platinum shell fine particle catalyst, their manufacturing method, and battery
KR102398409B1 (en) 2020-09-07 2022-05-17 한국에너지기술연구원 Manufacturing method for core-shell particle using carbon monoxide

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