6TH INTERNATIONAL CONFERENCE ON ENVIRONMENT (ICENV2018): Empowering Environment and Sustainable Engineering Nexus Through Green Technology最新文献

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Microwave-assisted KOH activation preparation of groundnut shell based activated carbon for methyl yellow adsorption 微波辅助KOH活化制备花生壳基甲基黄吸附活性炭
A. Khasri, M. Khan, M. A. Ahmad
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引用次数: 2
Catalytic performance of yttrium-doped co/mesoporous alumina catalysts for methane dry reforming 掺钇co/介孔氧化铝催化剂对甲烷干重整的催化性能
M. Bahari, T. Nguyen, Sharanjit Singh, T. J. Siang, M. N. Shafiqah, L. N. Jun, P. Phuong, N. Ainirazali, D. Vo
{"title":"Catalytic performance of yttrium-doped co/mesoporous alumina catalysts for methane dry reforming","authors":"M. Bahari, T. Nguyen, Sharanjit Singh, T. J. Siang, M. N. Shafiqah, L. N. Jun, P. Phuong, N. Ainirazali, D. Vo","doi":"10.1063/1.5117078","DOIUrl":"https://doi.org/10.1063/1.5117078","url":null,"abstract":"A series of mesoporous alumina (MA) supported cobalt-based catalysts with different yttrium promoter (0-5 wt.%) loading was synthesized by sequential incipient wetness impregnation (SIWI) approach and extensively investigated for methane dry reforming (MDR) reaction. The characterization results confirmed the formation of Co 3 O 4 and CoAl 2 O 4 phases on both fresh 10%Co/MA and 3%Y 10%Co/MA catalysts. Interestingly, the average crystallite size of Co 3 O 4 was reduced by 1.63% for yttrium-doped catalyst due to dilution effect which suppresses Co 3 O 4 agglomeration. It was also found that the yttrium promoter facilitated superior metal-support interaction compared to unpromoted catalyst. The catalyst with 3 wt.% of yttrium loading exhibited the highest catalytic conversion for CH 4 and CO 2 of about 85.8% and 90.5%, respectively. This improved activity can be ascribed to excellent cobalt dispersion and stronger metal-support interaction in the presence of Y 2 O 3 promoter. Irrespective of the catalyst, the carbon nanofilaments and graphitic carbon were detected on the surface of all the used catalyst, but the quantity of deposited carbon was comparatively smaller for Y 2 O 3 promoted catalyst. This was possibly due to its high oxygen mobility attributes, which enables rapid rate of carbon removal compared to carbon deposition on the surface of catalyst.","PeriodicalId":6836,"journal":{"name":"6TH INTERNATIONAL CONFERENCE ON ENVIRONMENT (ICENV2018): Empowering Environment and Sustainable Engineering Nexus Through Green Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77678867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
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