Hydrogen adsorption of nickel-silica materials: Role of the SBA-15 porosity

被引：26
作者：
Carraro, P. M. [1 ,2 ]
Garcia Blanco, A. A. [4 ]
Chanquia, C. [3 ]
Sapag, K. [4 ]
Oliva, M. I. [1 ]
Eimer, G. A. [2 ]
机构：
[1] Consejo Nacl Invest Cient & Tecn, IFEG, UNC, Cordoba, Argentina
[2] Consejo Nacl Invest Cient & Tecn, Ctr Invest Tecnol Quim, UTN, CITeQ, Cordoba, Argentina
[3] CNEA, CAB, San Carlos De Bariloche, Rio Negro, Argentina
[4] Consejo Nacl Invest Cient & Tecn, Lab Solidos Porosos, INFAP, UNSL, San Luis, Argentina
来源：
MICROPOROUS AND MESOPOROUS MATERIALS | 2017年 / 248卷
关键词：
Hydrogen adsorption; Nickel; SBA-15; Ni/SiO2; X-RAY-DIFFRACTION; ELECTRON-MICROSCOPY; NITROGEN ADSORPTION; MESOPOROUS SILICA; STORAGE CAPACITY; METAL-HYDRIDES; CATALYSTS; REDUCTION; MCM-41; NANOPARTICLES;
D O I：
10.1016/j.micromeso.2017.03.057
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
In this work, SBA-15 support was impregnated with nickel in order to study the influence of different factors (metal content, support, method of preparation) on their hydrogen storage capacity. H-2 adsorption was measured at low and high pressures (up to 10 and 40 bar) at 77 and 293 K, evaluating the influence of metallic nickel on such adsorption capacity. The properties of the prepared materials were studied by N-2 adsorption-desorption, XRD, TPR, UV-Vis, TEM, SEM and XPS techniques. The results indicated the importance of the nickel dispersion on the support to improve hydrogen storage. Thus, Ni/SBA-15 (2.5) sample, in contrast to Ni/SBA-15 (2.5)-R, shows the higher hydrogen adsorption capacity at both 77 K and 293 K. (C) 2017 Elsevier Inc. All rights reserved.
引用
收藏
页码：62 / 71
页数：10
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