Article
Energy & Fuels
Wei-Hsin Chen, Partha Pratim Biswas, Hwai Chyuan Ong, Anh Tuan Hoang, Thanh-Binh Nguyen, Cheng-Di Dong
Summary: The study of hydrogen energy is gaining attention for its effectiveness in achieving net zero and environmental sustainability. Bioethanol is a carbon-neutral fuel for hydrogen production and has potential as a sustainable energy source. This research assesses different routes for ethanol reforming and evaluates the impact of catalyst physicochemistry and experimental parameters on hydrogen production. The findings show that non-noble metals like Co and Ni are more reactive than noble metals in ethanol steam reforming, while the sequence of hydrogen selectivity differs in autothermal reforming of ethanol. The review highlights the importance of sustainable hydrogen production and decarbonization in reaching the net zero target.
Article
Thermodynamics
Wei-Hsin Chen, Shu-Cheng Li, Steven Lim, Zih-Yu Chen, Joon Ching Juan
Summary: The study showed that lower Reynolds numbers were beneficial for ethanol conversion and H-2 recovery in ethanol steam reforming, while using Pd membrane could increase H-2 yield, and higher Reynolds numbers increased total H-2 production but decreased recovery rate.
Article
Chemistry, Multidisciplinary
Luning Chen, Zhiyuan Qi, Xinxing Peng, Jeng-Lung Chen, Chih-Wen Pao, Xibo Zhang, Chaochao Dun, Melissa Young, David Prendergast, Jeffrey J. Urban, Jinghua Guo, Gabor A. Somorjai, Ji Su
Summary: This study demonstrates how the synergy between noble metal single sites and oxygen vacancies enhances hydrogen generation efficiency and CO2 selectivity in methanol steam reforming reactions. It lays the foundation for the rational design of single site catalysts at the atomic scale and the development of highly efficient and selective hydrogen evolution systems.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Materials Science, Multidisciplinary
Fatemeh Mamusi, Davood Farmanzadeh
Summary: Density function theory calculations were used to study the ethanol steam reforming mechanism on B12N12 and Al12N12 nano-cages. The key step in ethanol steam reforming was found to be the scission of O-H bond, and Al12N12 nano-cage showed to be a more suitable catalyst.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Thermodynamics
Nihal Rao, Kumargaurao D. Punase, Vijay Parthasarthy, Santosh K. Gupta
Summary: In this study, the integrated system of ethanol steam reforming and high temperature polymer electrolyte membrane fuel cell is simulated using ASPEN Plus and MATLAB. The optimal operating conditions are determined to maximize hydrogen yield and minimize CO amount.
INTERNATIONAL JOURNAL OF GREEN ENERGY
(2023)
Article
Chemistry, Applied
Zahra Rajabi, Michela Martinelli, Gabriel F. Upton, Caleb D. Watson, Donald C. Cronauer, Jeremy Kropf, Gary Jacobs
Summary: The study found that lithium-promoted Pt/m-ZrO2 catalysts not only exhibit higher reaction rates in the low temperature water-gas shift (LTS) reaction, but also have the potential to tune the selectivity in ethanol steam reforming, promoting methanation. This suggests that lithium-doped catalysts can increase methane production by improving the selectivity of hydrogen in ethanol reforming.
Article
Chemistry, Physical
Mohit Yadav, Imre Szenti, Marietta Abel, Akos Szamosvolgyi, Korneli B. Abrahamne, Janos Kiss, Pap Zsolt, Andras Sapi, Akos Kukovecz, Zoltan Konya
Summary: This study successfully synthesized platinum-gallium nanoalloy catalyst via ultrasound-assisted impregnation method, which exhibited excellent catalytic activity and H-2 formation rate in the steam reforming of ethanol reaction. This is attributed to the high interaction between gallium and platinum, resulting in enhanced dehydrogenation and acidic properties, thus increasing the yield of H-2.
Article
Chemistry, Multidisciplinary
Chao Wang, Wei Liu, Mingzheng Liao, Jiahong Weng, Jian Shen, Ying Chen, Yanping Du
Summary: This paper reports the application of high entropy oxides (HEO) in ethanol steam reforming (ESR) and the characterization of a spinel-phase nano structure HEO. The results show that an abundance of oxygen vacancies were formed in the HEO and the metals spilled out as active species for hydrogen production during ESR. The HEO also exhibited a high thermal stability and achieved a high hydrogen yield and selectivity. This research offers possibilities for thermal catalytic hydrogen production under high temperature conditions.
Article
Chemistry, Physical
Xuan Peng, Qibing Jin
Summary: By using advanced techniques of molecular simulations, the chemical equilibrium of methane steam reforming reaction was studied. The highest CH4 conversion, H-2 yield, and selectivity were observed under specific operating conditions. Furthermore, the pore size of activated carbon significantly influenced the chemical equilibrium composition in the pores.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Shiqing Jin, Didi Li, Zhen Wang, Yiming Wang, Li Sun, Minghui Zhu
Summary: Cu/CeO2 catalysts prepared by a deposition-precipitation method with various loadings were investigated using in situ characterization techniques. The catalyst surface contains metallic Cu-0 and interfacial sites, with the latter being the key active sites for the methanol steam reforming reaction. Furthermore, the structures of both sites change dynamically in response to different environmental conditions.
CATALYSIS SCIENCE & TECHNOLOGY
(2022)
Article
Energy & Fuels
Prathamesh Bodhankar, Shanmukh Patnaik, Ganesh R. Kale
Summary: Autothermal reforming of methane is a widely reported technique for syngas production, the study reveals that specific operational parameters can lead to high conversion efficiency and optimal hydrogen to nitrogen ratio. Thermodynamic analysis identified the best operating parameters for this technology, contributing to efficient hydrogen production.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Chemistry, Physical
Zhourong Xiao, Chan Wu, Li Wang, Jisheng Xu, Qiancheng Zheng, Lun Pan, Jijun Zou, Xiangwen Zhang, Guozhu Li
Summary: Doping La into Ni-CeO2 can promote oxygen vacancy generation and facilitate water dissociation, which leads to complete ethanol conversion and stable hydrogen production. In the test over 3000 minutes, Ni-CeLa0.20 catalyst showed only 0.48 mg(c)/g(cat) h of coke deposition at 600 degrees C under the GHSV of 55920 mL/g(cat).h.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Physical
Bo Chen, Shane Rickard, Zhenghong Bao, Zili Wu, Michelle K. Kidder, Aditya Savara
Summary: In this study, experiments were conducted to investigate the mechanism of hydrogen production in ethanol steam reforming. It was found that hydrogen can be generated by alternating exposure of ethanol and water on the surface of La0.7Sr0.3MnO3-x(1 0 0). Ethanol directly reduces the surface to create oxygen vacancies, while water fills the vacancies to produce hydrogen. These findings suggest that this hydrogen production mechanism plays a crucial role in ethanol steam reforming.
APPLIED SURFACE SCIENCE
(2023)
Article
Multidisciplinary Sciences
Hao Meng, Yusen Yang, Tianyao Shen, Wei Liu, Lei Wang, Pan Yin, Zhen Ren, Yiming Niu, Bingsen Zhang, Lirong Zheng, Hong Yan, Jian Zhang, Feng-Shou Xiao, Min Wei, Xue Duan
Summary: This paper reports a RhNi/TiO2 catalyst with a tunable RhNi-TiO2 strong bimetal-support interaction derived from the structure topological transformation of RhNiTi-layered double hydroxides precursors. The resulting catalyst exhibits extraordinary catalytic performance toward ethanol steam reforming reaction with high H-2 yield, production rate, and operational stability.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Feiyang Geng, Vasudev P. Haribal, Jason C. Hicks
Summary: Plasma-assisted steam methane reforming (SMR) is a promising method for low temperature and small-scale hydrogen production. The selectivity of CO and CO2 products can be controlled by adjusting the temperature, power, and water feed rate. A cascade design can further increase the CO2/CO selectivity.
APPLIED CATALYSIS A-GENERAL
(2022)