Size effects of zno nanoparticles in bifunctional catalysts for selective syngas conversion
文献类型：期刊论文
| 作者 | Liu, Na1,2; Jiao, Feng1; Pan, Xiulian1; Ding, Yi1,3; Feng, Jingyao1,2; Bao, Xinhe1 |
| 刊名 | Acs catalysis
 |
| 出版日期 | 2019-02-01 |
| 卷号 | 9期号:2页码:960-966 |
| 关键词 | Syngas conversion Oxides Size effects Zno Light olefins |
| ISSN号 | 2155-5435 |
| DOI | 10.1021/acscatal.8b04105 |
| 通讯作者 | Pan, xiulian(panxl@dicp.ac.cn) ; Bao, xinhe(xhbao@dicp.ac.cn) |
| 英文摘要 | The oxide-zeolite (ox-zeo) bifunctional catalyst design concept has shown promising potential for selectivity control in syngas conversion by separating co activation and c-c coupling onto oxides and zeolites, respectively. however, the structural effects of the oxides are far from being understood. herein, we take a single component, zno, as a probe oxide in combination with sapo-34 as a composite catalyst for light olefins synthesis from syngas. the space time yield of hydrocarbons significantly increases as the zno crystal size decreases from 79 to 23 nm, which can be attributed to more active centers available over smaller particles with a higher specific surface area. the apparent turnover frequency (tof) for formation of light olefins (toffight olefins) increases over smaller zno particles, whereas toflight paraffins decreases, leading to an increased ratio of light olefins/light paraffins, which indicates that smaller particles benefit the formation of olefins. these results demonstrate that it is crucial to control the particle size of oxides to design more active and selective ox-zeo catalysts for syngas conversion to olefins. |
| WOS关键词 | COBALT PARTICLE-SIZE ; FISCHER-TROPSCH SYNTHESIS ; LOWER OLEFINS ; CARBON-DIOXIDE ; OXIDE ; CO2 ; HYDROGENATION ; REDUCTION ; NO |
| WOS研究方向 | Chemistry |
| WOS类目 | Chemistry, Physical |
| 语种 | 英语 |
| WOS记录号 | WOS:000458707000020 |
| 出版者 | AMER CHEMICAL SOC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2372748 |
| 专题 | 大连化学物理研究所 |
| 通讯作者 | Pan, Xiulian; Bao, Xinhe |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, 2011 Collaborat Innovat Ctr Chem Energy Mat, State Key Lab Catalysis,Dalian Natl Lab Clean Ene, Zhongshan Rd 457, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Univ Sci & Technol China, Dept Chem Phys, 96 Jinzhai Rd, Hefei 230026, Anhui, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Na,Jiao, Feng,Pan, Xiulian,et al. Size effects of zno nanoparticles in bifunctional catalysts for selective syngas conversion[J]. Acs catalysis,2019,9(2):960-966. |
| APA | Liu, Na,Jiao, Feng,Pan, Xiulian,Ding, Yi,Feng, Jingyao,&Bao, Xinhe.(2019).Size effects of zno nanoparticles in bifunctional catalysts for selective syngas conversion.Acs catalysis,9(2),960-966. |
| MLA | Liu, Na,et al."Size effects of zno nanoparticles in bifunctional catalysts for selective syngas conversion".Acs catalysis 9.2(2019):960-966. |
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来源：大连化学物理研究所
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