Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김경학 | - |
dc.date.accessioned | 2021-10-15T06:55:25Z | - |
dc.date.available | 2021-10-15T06:55:25Z | - |
dc.date.issued | 2019-09 | - |
dc.identifier.citation | ACS Applied Nano Materials, v. 2, no. 10, page. 6473-6481 | en_US |
dc.identifier.issn | 2574-0970 | - |
dc.identifier.uri | https://pubs.acs.org/doi/10.1021/acsanm.9b01416 | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/165513 | - |
dc.description.abstract | Rare earth (RE) metals have often been used as dopants to improve the catalytic activity of ceria. However, their exact role in the activity of ceria catalyst has not been clearly identified. Combining experimental and theoretical approaches, we extensively investigate CO oxidation as a model reaction on RE-doped ceria (REC). The apparent activity is linearly proportional to the specific surface area (AS), which is enlarged by RE dopants as a consequence of surface stabilization. To decouple the effect of each RE dopant on the surface inherent activity, we set AS of REC to be almost constant by adjusting the pH during synthesis. In this case, however, pure ceria shows higher activity than any REC. We therefore conclude that although the RE dopants have lower intrinsic activity than that of Ce, they have an important effect of increasing AS to a level that pure ceria can never attain synthetically, thereby increasing their catalytic activity. | en_US |
dc.description.sponsorship | The authors acknowledge the financial support from Basic Science Research Program (Grants NRF-2016R1A5A1009592 and NRF-2018R1A2B2002875) and the R&D program of the Global Frontier Center for Multiscale Energy System Grant NRF-2014M3A6A7074784) through the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT). | en_US |
dc.language.iso | en | en_US |
dc.publisher | AMER CHEMICAL SOC | en_US |
dc.subject | rare-earth metal dopants | en_US |
dc.subject | ceria (CeO2) | en_US |
dc.subject | CO oxidation | en_US |
dc.subject | intrinsic activity | en_US |
dc.subject | surface area | en_US |
dc.title | Improved CO Oxidation via Surface Stabilization of Ceria Nanoparticles Induced by Rare-Earth Metal Dopants | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.1021/acsanm.9b01416 | - |
dc.relation.journal | ACS Applied Nano Materials | - |
dc.contributor.googleauthor | Noh, Kyung-Jong | - |
dc.contributor.googleauthor | Kim, Kyeounghak | - |
dc.contributor.googleauthor | Kim, Hyung Jun | - |
dc.contributor.googleauthor | Shin, Dongjae | - |
dc.contributor.googleauthor | Han, Jeong Woo | - |
dc.relation.code | 2013055137 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DEPARTMENT OF CHEMICAL ENGINEERING | - |
dc.identifier.pid | chemekim | - |
dc.identifier.researcherID | AAQ-3553-2020 | - |
dc.identifier.orcid | https://orcid.org/0000-0003-1297-6038 | - |
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