Ru-based multifunctional mesoporous catalyst for low-pressure and non-thermal plasma synthesis of ammonia

被引：108

作者：

Peng, Peng ^{[1
,2
]}

Cheng, Yanling ^{[1
,2
]}

Hatzenbeller, Raymond ^{[1
,2
]}

Addy, Min ^{[1
,2
]}

Zhou, Nan ^{[1
,2
]}

Schiappacasse, Charles ^{[1
,2
]}

Chen, Dongjie ^{[1
,2
]}

Zhang, Yaning ^{[1
,2
,3
]}

Anderson, Erik ^{[1
]}

Liu, Yuhuan ^{[4
]}

Chen, Paul ^{[1
,2
]}

Ruan, Roger ^{[1
,2
,4
]}

机构：

[1] Univ Minnesota Twin Cities, Ctr Biorefining, St Paul, MN 55108 USA

[2] Univ Minnesota Twin Cities, Dept Bioprod & Biosyst Engn, St Paul, MN 55108 USA

[3] Harbin Inst Technol, Haerbin 150001, Heilongjiang, Peoples R China

[4] Nanchang Univ, Biomass Engn Res Ctr, MOE, Nanchang 330047, Jiangxi, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2017年 / 42卷 / 30期

基金：

美国国家科学基金会;

关键词：

Non-thermal plasma; Low pressure; Ammonia synthesis; Multifunctional catalysts; DIELECTRIC-BARRIER-DISCHARGE; WET AIR OXIDATION; FUEL-CELL; RUTHENIUM CATALYSTS; XPS INVESTIGATIONS; ALKALI PROMOTER; HYDROGEN; SILICA; NANOPARTICLES; PERFORMANCE;

D O I：

10.1016/j.ijhydene.2017.06.118

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：

The non-thermal plasma (NTP) allows the synthesis of ammonia, one of the major hydrogen carriers, at a lower temperature and pressure than the traditional Haber-Bosch process. In this study, we report the synthesis of ammonia using NTP, and a Ru-based, multifunctional catalytic system deposited on mesoporous Si-MCM-41. Various surface characterization methods were used to analyze the catalyst. For the ammonia synthesis results, we determined that the synthesis efficiency increased in the high frequency zone (>20,000 Hz). The effects of different experimental parameters were studied and the highest ammonia synthesis efficiency achieved was 1.7 g/kWh at 5000 V and 26,000 Hz. Results were analyzed in the context of several synergetic effects including the plasma forming mechanism, discharge effects of the catalysts, plasma shielding effects of the mesoporous structure, and other plasma-catalyst interactions. Lastly, a new concept of a two-step non-thermal plasma ammonia synthesis method was also proposed. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：19056 / 19066

页数：11

共 87 条

[1] Role of alkali promoter in ammonia synthesis over ruthenium catalysts-Effect on reaction mechanism [J].