Gold supported on zirconia polymorphs for hydrogen generation from formic acid in base-free aqueous medium | |
Bi, Qing-Yuan1,2; Lin, Jian-Dong1; Liu, Yong-Mei1; He, He-Yong1; Huang, Fu-Qiang2,3,4; Cao, Yong1 | |
刊名 | JOURNAL OF POWER SOURCES |
2016-10-01 | |
卷号 | 328页码:463-471 |
关键词 | Gold catalysis Zirconia polymorphs Formic acid Base-free Hydrogen |
英文摘要 | Formic acid (FA) has attracted considerable attention as a safe and convenient hydrogen storage material for renewable energy transformation. However, development of an efficient heterogeneous catalyst for selective FA decomposition for ultraclean H-2 gas in the absence of any alkalis or additives under mild conditions remains a major challenge. Based on our previous work on Au/ZrO2 as a robust and efficient catalyst for FA dehydrogenation in amine system, we report here ZrO2 with different nanocrystal poly morphs supported Au nanoparticles can achieve near completion of FA dehydrogenation in base-free aqueous medium. Of significant importance is that an excellent rate of up to 81.8 L H-2 g(Au)(-1) h(-1) in open system and highly pressurized gas of 5.9 MPa in closed one can be readily attained at 80 degrees C for Au/m-ZrO2. In situ diffuse reflectance infrared Fourier transform (DRIFT) and CO2-temperature programmed desorption (TPD) techniques revealed that Au/m-ZrO2 exhibits a higher density of surface basic sites than Au/t-ZrO2 and Au/a-ZrO2. Basic sites in surface can substantially facilitate crucial FA deprotonation process which appears to be a key factor for achieving high dehydrogenation activity. The H/D exchange between solvent of H2O and substrate of FA was observed by the kinetic isotope effect experiments. (C) 2016 Elsevier B.V. All rights reserved. |
WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
类目[WOS] | Chemistry, Physical ; Electrochemistry ; Energy & Fuels ; Materials Science, Multidisciplinary |
研究领域[WOS] | Chemistry ; Electrochemistry ; Energy & Fuels ; Materials Science |
关键词[WOS] | ROOM-TEMPERATURE ; AMBIENT CONDITIONS ; CATALYZED DECOMPOSITION ; PALLADIUM NANOPARTICLES ; SYNERGISTIC CATALYSIS ; FORMATE SOLUTIONS ; STORAGE MATERIAL ; CARBON-DIOXIDE ; IRON CATALYST ; LIQUID-PHASE |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000383293400051 |
内容类型 | 期刊论文 |
源URL | [http://ir.sic.ac.cn/handle/331005/22850] |
专题 | 上海硅酸盐研究所_高性能陶瓷和超微结构国家重点实验室_期刊论文 |
作者单位 | 1.Fudan Univ, Shanghai Key Lab Mol Catalysis & Innovat Mat, Collaborat Innovat Ctr Chem Energy Mat, Dept Chem, Shanghai 200433, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China 3.Peking Univ, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China 4.Peking Univ, State Key Lab Rare Earth Mat Chem & Applicat, Coll Chem & Mol Engn, Beijing 100871, Peoples R China |
推荐引用方式 GB/T 7714 | Bi, Qing-Yuan,Lin, Jian-Dong,Liu, Yong-Mei,et al. Gold supported on zirconia polymorphs for hydrogen generation from formic acid in base-free aqueous medium[J]. JOURNAL OF POWER SOURCES,2016,328:463-471. |
APA | Bi, Qing-Yuan,Lin, Jian-Dong,Liu, Yong-Mei,He, He-Yong,Huang, Fu-Qiang,&Cao, Yong.(2016).Gold supported on zirconia polymorphs for hydrogen generation from formic acid in base-free aqueous medium.JOURNAL OF POWER SOURCES,328,463-471. |
MLA | Bi, Qing-Yuan,et al."Gold supported on zirconia polymorphs for hydrogen generation from formic acid in base-free aqueous medium".JOURNAL OF POWER SOURCES 328(2016):463-471. |
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