The electrooxidation of formic acid catalyzed by Pd-Ga nanoalloys

Xu Shaocen; Zhang Jing; Wang JuanLv LinSun YuejiaHuang XiaoweiLin TsungwuHuang XingShao Lidong

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The electrooxidation of formic acid catalyzed by Pd-Ga nanoalloys

机译：甲酸电氧化的催化Pd-Ga nanoalloys

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In the present work, PdxGay alloys on oxygen-species-functionalized carbon nanotubes (PdxGay/OCNTs) are prepared as catalysts for the electrooxidation of formic acid by a facile method. Among all the catalysts, the catalyst with a Pd:Ga atomic ratio of 3.9:1 (Pd3.9Ga1) exhibits mass activity of 1321 A g(-1) and improved stability. The functional groups on the modified CNT surfaces provide anchoring sites for Pd3.9Ga1 nano-alloys of 2 nm average size. Surface analysis reveals the appearance of a Pd 4d band center shift, which may weaken the adsorption of the formate intermediate. Pd3.9Ga1/OCNT with a modified electronic structure shows enhanced catalytic activity and stability towards the HCOOH oxidation reaction.

机译：在目前的工作,PdxGay合金oxygen-species-functionalized碳纳米管(PdxGay / OCNTs)准备的催化剂甲酸电氧化的肤浅方法。Pd: Ga原子比例3.9:1 (Pd3.9Ga1)展品质量活动1321 g (1)提高稳定性。修改问表面提供锚定地点Pd3.9Ga1 nano-alloys 2 nm的平均大小。面分析揭示了Pd的外观4 d带中心转变,这可能会削弱甲酸吸附的中间。Pd3.9Ga1 / OCNT与修改后的电子显示增强的催化活性和结构稳定向HCOOH氧化反应。

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来源
《Catalysis science & technology》 |2019年第5期|1255-1259|共5页
作者
Xu Shaocen; Zhang Jing; Wang JuanLv LinSun YuejiaHuang XiaoweiLin TsungwuHuang XingShao Lidong;
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作者单位

Swiss Fed Inst Technol, Sci Ctr Opt & Electron Microscopy, Auguste Piccard Hof 1, CH-8093 Zurich, Switzerland;

Tunghai Univ, Dept Chem, 181,Sec 3,Taichung Port Rd, Taichung, Taiwan;

Shanghai Univ Elect Power, Shanghai Key Lab Mat Protect & Adv Mat Elect Powe, Shanghai 200090, Peoples R China;

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正文语种英语
中图分类汉语教学;
关键词
Electronic structure; Formic Acids; ElectrooxidationCatalystsnano alloyCatalyst activity;

机译：电子结构;甲酸的酸;ElectrooxidationCatalystsnano alloyCatalyst活动;

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The electrooxidation of formic acid catalyzed by Pd-Ga nanoalloys

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