Effects of metal loading and support modification on the low-temperature steam reforming of ethanol (LTSRE) over the Ni-Sn/CeO2 catalysts

被引：22

作者：

Seriyala, Anil Kumar ^{[1
]}

Rao, Ankit ^{[2
]}

Leclerc, Corey ^{[3
]}

Appari, Srinivas ^{[1
]}

Roy, Banasri ^{[1
]}

机构：

[1] Birla Inst Technol & Sci BITS Pilani, Dept Chem Engn, Rajasthan 333031, India

[2] Indian Inst Sci IISC, Ctr Nano Sci & Engn, Bengaluru 560012, Karnataka, India

[3] New Mex Inst Technol, Dept Chem Engn, Socorro, NM 87801 USA

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2023年 / 48卷 / 41期

关键词：

Ni-Sn; CeO2-MgO catalyst; Hydrogen; Support modification; Varying metal loading Effect of tin composition Solution combustion synthesis (SCS); HYDROGEN-PRODUCTION; NI CATALYSTS; OXYGENATED HYDROCARBONS; NI/AL2O3; CATALYSTS; PARTIAL OXIDATION; HIGHLY EFFICIENT; MIXED OXIDES; SN; NICKEL; PERFORMANCE;

D O I：

10.1016/j.ijhydene.2023.01.039

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This article presents the effect of metal loading and support modification with MgO on lowtemperature steam reforming of ethanol (LTSRE) over Ni-Sn/CeO2 catalysts prepare by a study of these catalysts (0.5 g) is performed at different temperatures (200-400 degrees C), H2O:EtOH = 12: 1 mol ratio, and feed flow rate 0.1 ml/min. After 10 h TOS at 400 degrees C, NiSn(5)/ CM12 catalyst with 5 wt.% total metal loading, optimal Sn (Ni:Sn = 14:1), and Ce:Mg = 1:2 mol ratio shows EtOH conversion 100% and H2 selectivity 70% with low coke deposition. Physicochemical characterizations (XRD, Raman, FESEM, TEM, and N2 adsorption-desorption) reveal that addition of MgO in CeO2 and an optimal amount of Sn decrease both Ni and support particle sizes while oxygen storage capacity (OSC) of the support increases (by XPS). Alkaline characteristics of MgO reduces support's acidity and improves active metal-support interaction, as evaluated by NH3-TPD and H2-TPR. (c) 2023 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：15533 / 15554

页数：22

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