Catalytic Hydrogen Evolution of NaBH4 Hydrolysis by Cobalt Nanoparticles Supported on Bagasse-Derived Porous Carbon

被引:39
作者
Bu, Yiting [1 ,2 ,3 ]
Liu, Jiaxi [1 ,2 ]
Chu, Hailiang [1 ,2 ]
Wei, Sheng [1 ,2 ,3 ]
Yin, Qingqing [1 ,2 ]
Kang, Li [1 ,2 ]
Luo, Xiaoshuang [1 ]
Sun, Lixian [1 ,2 ,3 ]
Xu, Fen [1 ,2 ]
Huang, Pengru [1 ,2 ,4 ]
Rosei, Federico [5 ]
Pimerzin, Aleskey A. [6 ]
Seifert, Hans Juergen [7 ]
Du, Yong [8 ]
Wang, Jianchuan [8 ]
机构
[1] Guilin Univ Elect Technol, Sch Mat Sci & Engn, Guangxi Collaborat Innovat Ctr Struct & Property, Guilin 541004, Peoples R China
[2] Guilin Univ Elect Technol, Sch Mat Sci & Engn, Guangxi Key Lab Informat Mat, Guilin 541004, Peoples R China
[3] Guilin Univ Elect Technol, Sch Mech & Elect Engn, Guilin 541004, Peoples R China
[4] Natl Univ Singapore, Dept Mat Sci & Engn, Singapore 117575, Singapore
[5] Ctr Energy Mat & Telecommunicat, Inst Natl Rech Scientif, 1650 Blvd Lionel Boulet Varennes, Varennes, PQ J3X 1S2, Canada
[6] Samara State Tech Univ, Dept Chem, Samara 443100, Russia
[7] Karlsruhe Inst Technol, Inst Appl Mat Mat Phys, Hermann von Helmholtz Platz 1, D-76344 Karlsruhe, Germany
[8] Cent South Univ, State Key Lab Powder Met, Changsha 410083, Peoples R China
基金
中国国家自然科学基金;
关键词
sodium borohydride; hydrolysis; porous carbon; Co nanoparticles; durability; SODIUM-BOROHYDRIDE; GENERATION RATE; B CATALYST; EFFICIENT; STORAGE; PERFORMANCE; ENERGY; MECHANISM; VOLUME; HYDROXYAPATITE;
D O I
10.3390/nano11123259
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
As a promising hydrogen storage material, sodium borohydride (NaBH4) exhibits superior stability in alkaline solutions and delivers 10.8 wt.% theoretical hydrogen storage capacity. Nevertheless, its hydrolysis reaction at room temperature must be activated and accelerated by adding an effective catalyst. In this study, we synthesize Co nanoparticles supported on bagasse-derived porous carbon (Co@xPC) for catalytic hydrolytic dehydrogenation of NaBH4. According to the experimental results, Co nanoparticles with uniform particle size and high dispersion are successfully supported on porous carbon to achieve a Co@150PC catalyst. It exhibits particularly high activity of hydrogen generation with the optimal hydrogen production rate of 11086.4 mL(H2)center dot min(-1)center dot g(Co)(-1) and low activation energy (E-a) of 31.25 kJ mol(-1). The calculation results based on density functional theory (DFT) indicate that the Co@xPC structure is conducive to the dissociation of [BH4](-), which effectively enhances the hydrolysis efficiency of NaBH4. Moreover, Co@150PC presents an excellent durability, retaining 72.0% of the initial catalyst activity after 15 cycling tests. Moreover, we also explored the degradation mechanism of catalyst performance.
引用
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页数:15
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