Korean Journal of Chemical Engineering, Vol.37, No.8, 1365-1370, 2020
Confinement of Ru nanoparticles inside the carbon nanotube: Selectivity controls on methanol decomposition
Carbon nanotubes (CNT) have been widely used as catalyst supports, and the confinement of metal nanoparticles inside the CNT cavity have received much attention. In this study, graphitic carbon nitride were used to introduce nitrogen to CNT and form ruthenium nanoparticles inside the CNT channel. The XPS evidenced that the ruthenium nanoparticles in the CNT cavity are present in more reduced state, and the nitrogen species are in a pyridinic and a pyrrolic form. The prepared catalysts exhibited excellent hydrogen and carbon monoxide selectivity. The hydrogen-to-carbon monoxide ratio was close to the stoichiometric ratio of methanol decomposition. In contrast, the ruthenium nanoparticles outside the CNT showed lower carbon monoxide selectivity at high methanol conversion. The alteration of electrical properties of ruthenium nanoparticles by the CNT channel and N-doping might hamper side reactions, such as water gas shift, methanation, dimethyl ether formation upon methanol decomposition.
[References]
Zhang D, Wei G, Wang Y, Wang J, Ning P, Zhang Q, Wang M, Zhang T, Long K, Korean J. Chem. Eng. , 35 (10), 1979, 2018
Pan XL, Fan ZL, Chen W, Ding YJ, Luo HY, Bao XH, Nat. Mater. , 6 (7), 507, 2007
Castillejos E, Debouttiere PJ, Roiban L, Solhy A, Martinez V, Kihn Y, Ersen O, Philippot K, Chaudret B, Serp P, Angew. Chem.-Int. Edit. , 48 (14), 2529, 2009
Peralta-Inga Z, Lane P, Murray JS, Boyd S, Grice ME, O'Connor CJ, Politzer P, Nano Lett. , 3 (1), 21, 2003
Liu H, Zhang L, Wang N, Su DS, Angew. Chem.-Int. Edit. , 53 (46), 12634, 2014
Tessonnier JP, Pesant L, Ehret G, Ledoux MJ, Pham-Huu C, Appl. Catal. A: Gen. , 288 (1-2), 203, 2005
Wang D, Liu J, Xi JB, Jiang JZ, Bai ZW, Appl. Surf. Sci. , 489 , 477, 2019
Palacio I, de la Fuente OR, Surf. Sci. , 606 (15-16), 1152, 2012
Sieben JM, Duarte MME, Int. J. Hydrog. Energy , 37 (13), 9941, 2012
Shiozaki R, Hayakawa T, Liu YY, Ishii T, Kumagai M, Hamakawa S, Suzuki K, Itoh T, Shishido T, Takehira K, Catal. Lett. , 58 (2-3), 131, 1999
Hokenek S, Kuhn JN, ACS Catal. , 2 (6), 1013, 2012
Paneva D, Tsoncheva T, Manova E, Mitov I, Ruskov T, Appl. Catal. A: Gen. , 267 (1-2), 67, 2004
Tsoncheva T, Genova I, Stoyanova M, Pohl MM, Nickolov R, Dimitrov M, Sarcadi-Priboczki E, Mihaylov M, Kovacheva D, Hadjiivanov K, Appl. Catal. B: Environ. , 147 , 684, 2014
Fan MQ, Xu Y, Sakurai J, Demura M, Hirano T, Teraoka Y, Yoshigoe A, Catal. Lett. , 144 (5), 843, 2014
Hong S, Rahman TS, J. Am. Chem. Soc. , 135 (20), 7629, 2013
Wang H, Lu JL, Marshall CL, Elam JW, Miller JT, Liu HB, Enterkin JA, Kennedy RM, Stair PC, Poeppelmeier KR, Marks LD, Catal. Today , 237 , 71, 2014
Marban G, Lopez A, Lopez I, Valdes-Solis T, Appl. Catal. B: Environ. , 99 (1-2), 257, 2010
Lee JH, Park MJ, Yoo SJ, Jang JH, Kim HJ, Nam SW, Yoon CW, Kim JY, Nanoscale , 7 (23), 10334, 2015
Hien TN, Kim YH, Jeon M, Lee HJ, Ridwan M, Tamarany R, Yoon WC, Materials , 8 (6), 3442, 2015
Lee JH, Ryu J, Kim JY, Nam SW, Han JH, Lim TH, Gautam S, Chae KH, Yoon CW, J. Mater. Chem. A , 2 (25), 9490, 2014
Kim YK, Park H, Energy Environ. Sci. , 4 (3), 685, 2011
Park Y, Lee B, Kim C, Oh Y, Nam S, Park B, J. Mater. Res. , 24 (9), 2762, 2009
Qiao Y, Guo S, Zhu K, Liu P, Li X, Jiang K, Sun CJ, Chen M, Zhou H, Energy Environ. Sci. , 11 (2), 299, 2018
Lee WJ, Jeong SM, Lee H, Kim BJJ, An KH, Park YK, Jung SC, Korean J. Chem. Eng. , 34 (11), 2993, 2017
Sadri R, Hosseini M, Kazi SN, Bagheri S, Zubir N, Solangi KH, Zaharinie T, Badarudin A, J. Colloid Interface Sci. , 504 , 115, 2017
Chen MH, Ke CY, Chiang CL, J. Compos. Sci. , 2 (2), 18, 2018
Sheng ZH, Shao L, Chen JJ, Bao WJ, Wang FB, Xia XH, ACS Nano , 5 (6), 4350, 2011
Lee JH, Park MJ, Jung J, Ryu J, Cho E, Nam SW, Kim JY, Yoon CW, Inorg. Chim. Acta. , 422 , 3, 2014
Deng J, Ren P, Deng D, Yu L, Yang F, Bao X, Energy Environ. Sci. , 7 (6), 1919, 2014
Sexton BA, Surf. Sci. , 102 (1), 271, 1981
Moura AS, Fajin JLC, Pinto ASS, Mandado M, Cordeiro MNDS, J. Phys. Chem. C , 119 (49), 27382, 2015
Wei GF, Shang C, Liu ZP, Phys. Chem. Chem. Phys. , 117 (3), 2078, 2015
Peralta-Inga Z, Lane P, Murray JS, Boyd S, Grice ME, O'Connor CJ, Politzer P, Nano Lett. , 3 (1), 21, 2003
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