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题名: Highly Active Carbon Supported Pd-Ag Nanofacets Catalysts for Hydrogen Production from HCOOH
作者: Wang, WH(王文惠); He, T(何婷); Liu, XH(刘雪华); He, WN(何伟娜); Cong, HJ; Shen, YB(沈杨彬); Yan, LM; Zhang, XT(张学同); Zhang, JP(张锦平); Zhou, XC(周小春)
通讯作者: Zhou, XC(周小春)
刊名: ACS APPLIED MATERIALS & INTERFACES
发表日期: 2016
DOI: 10.1021/acsami.6b08091
卷: 8, 期:32
收录类别: SCI ; EI
文章类型: 期刊论文
部门归属: 先进材料研究部
英文摘要: Hydrogen is regarded as a future sustainable and clean energy carrier. Formic acid is a safe and sustainable hydrogen storage medium with many advantages, including high hydrogen content, nontoxicity, and low cost. In this work, a series of highly active catalysts for hydrogen production from formic acid are successfully synthesized by controllably depositing Pd onto Ag nanoplates with different Ag nano facets, such as Ag{111}, Ag{100}, and the nanofacet on hexagonal close packing Ag crystal (Ag{hcp}). Then, the Pd-Ag nanoplate catalysts are supported on Vulcan XC-72 carbon black to prevent the aggregation of the catalysts. The research reveals that the high activity is attributed to the formation of Pd Ag alloy nanofacets, such as Pd- Ag{111}, Pd Ag{100}, and Pd-Ag{hcp}. The activity order of these Pd-decorated Ag nanofacets is Pd-Ag{hcp} > Pd Ag{111} > Pd Ag{100}. Particularly, the activity of Pd Ag{hcp} is up to an extremely high value, i.e., TOF{hcp} = 19 000 +/- 1630 h(-1) at 90 degrees C (lower' limit value), which is more than 800 times higher than our previous quasi-spherical Pd Ag alloy nanocatalyst. The initial activity of Pd-Ag{hcp} even reaches (3.13 +/- 0.19) X 10(6) h(-1) at 90 degrees C. This research not only presents highly active catalysts for hydrogen generation but also shows that the facet on the hcp Ag crystal can act as a potentially highly active catalyst.
关键词[WOS]: FORMIC-ACID DEHYDROGENATION ; MACRORETICULAR BASIC RESIN ; UNIFORM SILVER NANOWIRES ; ROOM-TEMPERATURE ; ALLOY NANOPARTICLES ; BIMETALLIC NANOCRYSTALS ; AMBIENT CONDITIONS ; OXYGEN REDUCTION ; AQUEOUS-SOLUTION ; SHAPE-CONTROL
语种: 英语
JCR小类分区: 一区
WOS记录号: WOS:000381715900038
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinano.ac.cn/handle/332007/4664
Appears in Collections:先进材料研究部_周小春团队_期刊论文

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Recommended Citation:
Wang, WH,He, T,Liu, XH,et al. Highly Active Carbon Supported Pd-Ag Nanofacets Catalysts for Hydrogen Production from HCOOH[J]. ACS APPLIED MATERIALS & INTERFACES,2016,8(32).
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