☆ 4.5 Article

Enhanced Low-Temperature Activity of CO2 Methanation Over Ni/CeO2 Catalyst

CATALYSIS LETTERS (2022)

期刊

CATALYSIS LETTERS

卷 152, 期 3, 页码 872-882

出版社

SPRINGER

DOI: 10.1007/s10562-021-03677-7

关键词

Carbon dioxide; Methane; CeO2; Catalyst; Support; Oxygen vacancy; Ni

类别

Chemistry, Physical

资金

Fund of International Science and Technology Cooperation Program of China [2019YFC1906802]

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摘要

CeO2 nanorods prepared by hydrothermal method show high concentration of oxygen vacancy and well metal dispersion, leading to high catalytic activity for CO2 methanation with a conversion rate of 60% at 300 degrees C. The content of oxygen vacancy is positively correlated with catalyst surface area, which promotes CO2 activation and metal dispersion for improved catalytic activity at low temperatures.

CeO2 nanorods (CeO2-nrs), CeO2 nanocubes (CeO2-ncs) and CeO2 nanopolyhedrons (CeO2-nps) were prepared by hydrothermal method and then NiO crystallites were deposited on these supports by precipitation-deposition, respectively. The physicchemical properties of Ni/CeO2 catalysts were characterized and performances for carbon dioxide methanation reaction were tested. The Ni/CeO2-nrs sample shows well metal dispersion and high concentration of oxygen vacancy, which leads to the high catalytic activity for CO2 methanation. Especially at 300 degrees C, the CO2 conversion could reach 60%. Further analysis reveals that the content of oxygen vacancy has a positive correlation with the surface area of catalyst. The largest surface area results in the most of oxygen vacancy on the Ni/CeO2-nrs catalyst, and then a large amount of CO2 could be activated at low temperatures. Meanwhile, large surface area facilitates the dispersion of active metals, and improves the degree of H-2 activation. The combined effect results in the promotion of catalytic activity for CO2 methanation at low temperatures. [GRAPHICS] .

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Ke, A. Khoukaz, R. Kiuchi, R. Kliemt, L. Koch, O. B. Kolcu, B. Kopf, M. K. Kuessner, A. Kupsc, W. Kuehn, J. J. Lane, J. S. Lange, P. Larin, A. Lavania, L. Lavezzi, T. T. Lei, Z. H. Lei, H. Leithoff, M. Lellmann, T. Lenz, C. Li, C. Li, C. H. Li, Cheng Li, D. M. Li, F. Li, G. Li, H. Li, H. B. Li, H. J. Li, H. N. Li, Hui Li, J. R. Li, J. S. Li, J. W. Li, Ke Li, L. J. Li, L. K. Li, Lei Li, M. H. Li, P. R. Li, S. X. Li, T. Li, W. D. Li, W. G. Li, X. H. Li, X. L. Li, Xiaoyu Li, Y. G. Li, Z. J. Li, Z. X. Li, Z. Y. Li, C. Liang, H. Liang, H. Liang, H. Liang, Y. F. Liang, Y. T. Liang, G. R. Liao, L. Z. Liao, J. Libby, A. Limphirat, D. X. Lin, T. Lin, B. J. Liu, B. X. Liu, C. Liu, C. X. Liu, D. Liu, F. H. Liu, Fang Liu, Feng Liu, G. M. Liu, H. Liu, H. B. Liu, H. M. Liu, Huanhuan Liu, Huihui Liu, J. B. Liu, J. L. Liu, J. Y. Liu, K. Liu, K. Y. Liu, Ke Liu, L. Liu, L. C. Liu, Lu Liu, M. H. Liu, P. L. Liu, Q. Liu, S. B. Liu, T. Liu, W. K. Liu, W. M. Liu, X. Liu, Y. Liu, Y. B. Liu, Z. A. Liu, Z. Q. 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Zhang, J. W. Zhang, J. X. Zhang, J. Y. Zhang, J. Z. Zhang, Jianyu Zhang, Jiawei Zhang, L. M. Zhang, L. Q. Zhang, Lei Zhang, P. Zhang, Q. Y. Zhang, Shuihan Zhang, Shulei Zhang, X. D. Zhang, X. M. Zhang, X. Y. Zhang, X. Y. Zhang, Y. Zhang, Y. Zhang, Y. T. Zhang, Y. H. Zhang, Yan Zhang, Yao Zhang, Z. H. Zhang, Z. L. Zhang, Z. Y. Zhang, Z. Y. Zhang, G. Zhao, J. Zhao, J. Y. Zhao, J. Z. Zhao, Lei Zhao, Ling Zhao, M. G. Zhao, S. J. Zhao, Y. B. Zhao, Y. X. Zhao, Z. G. Zhao, A. Zhemchugov, B. Zheng, J. P. Zheng, W. J. Zheng, Y. H. Zheng, B. Zhong, X. Zhong, H. Zhou, L. P. Zhou, X. Zhou, X. K. Zhou, X. R. Zhou, X. Y. Zhou, Y. Z. Zhou, J. Zhu, K. Zhu, K. J. Zhu, L. Zhu, L. X. Zhu, S. H. Zhu, S. Q. Zhu, T. J. Zhu, W. J. Zhu, Y. C. Zhu, Z. A. Zhu, J. H. Zou, J. Zu

Summary: Using data from e+e- collisions with a total integrated luminosity of 11.957 fb-1 collected at center-of-mass energies between 3.773 and 4.258 GeV, the cross section for the process e+e- -> AA over bar is measured in 16 AA over bar invariant mass intervals up to 3.00 GeV/c2 using the BESIII detector at BEPCII. The results show agreement with previous results from BABAR and BESIII, but with improved precision and narrower AA over bar invariant mass intervals compared to BABAR.

PHYSICAL REVIEW D (2023)

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Review Nutrition & Dietetics

The Mediterranean Diet and Age-Related Eye Diseases: A Systematic Review

Yi Wu, Ye Xie, Yixiong Yuan, Ruilin Xiong, Yuxin Hu, Kang Ning, Jason Ha, Wei Wang, Xiaotong Han, Mingguang He

Summary: The Mediterranean diet is associated with reduced risks of age-related eye diseases, such as diabetic retinopathy and age-related macular degeneration. However, its effects on cataract, glaucoma, and dry eye syndrome are less conclusive. Further high-quality studies are needed to evaluate the potential benefits of the Mediterranean diet on these eye diseases.

NUTRIENTS (2023)

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Article Chemistry, Physical

Systematic investigation of the mechanical, electronic, and interfacial properties of high mobility monolayer InAs from first-principles calculations

Wenjing Yu, Jingzhen Li, Yi Wu, Jing Lu, Yongzhe Zhang

Summary: Due to its excellent properties, two-dimensional indium arsenide (InAs) is considered a promising alternative material for electronic and optoelectronic devices. In this study, the mechanical, electronic, and interfacial properties of monolayer fully-hydrogen-passivated InAs (InAsH2) were calculated. The results showed that InAsH2 has stability, a suitable band gap and high electron carrier mobility compared to other materials. The study also investigated the electronic structure of InAsH with different metal contacts and found that 2D InAs can achieve p-type ohmic contact with Pt electrodes. This work provides important theoretical guidance for the design of next-generation electronic devices.

PHYSICAL CHEMISTRY CHEMICAL PHYSICS (2023)

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Correction Materials Science, Biomaterials

Restoring the electrical microenvironment using ferroelectric nanocomposite membranes to enhance alveolar ridge regeneration in a mini-pig preclinical model (vol 11, pg 985, 2023)

Yiping Li, Yanze Meng, Yunyang Bai, Yijun Wang, Jiaqi Wang, Boon Chin Heng, Jinqi Wei, Xi Jiang, Min Gao, Xiaona Zheng, Xuehui Zhang, Xuliang Deng

Summary: This study applies ferroelectric nanocomposite membranes to restore the electrical microenvironment and enhance alveolar ridge regeneration in a mini-pig preclinical model.

JOURNAL OF MATERIALS CHEMISTRY B (2023)

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Article Engineering, Electrical & Electronic

Analysis of Capacitance Characteristics of Light-Controlled Electrostatic Conversion Device

Yujie Liu, Yang Wang, Xiangliang Jin, Yan Peng, Jun Luo, Jun Yang

Summary: In recent years, there has been a growing focus on converting environmental energy into electrical energy in order to meet the growing demand for clean and sustainable energy in modern society. This paper introduces a light-controlled electrostatic conversion device (LCECD) that can convert electrostatic energy into usable electrical energy. Experimental results show that LCECD is able to convert 30kV electrostatic pulses into energy for powering LED lights. Additionally, the device's parasitic capacitance changes after exposure to light, and the efficiency of electrostatic conversion is improved with smaller parasitic capacitance. This has significant implications for the future design of electrostatic conversion devices.

CHINESE JOURNAL OF ELECTRONICS (2023)

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Article Geriatrics & Gerontology

Longevity-Associated Transcription Factor ATF7 Promotes Healthspan by Suppressing Cellular Senescence and Systematic Inflammation

Yaqun Huang, Ming-Xia Ge, Yu-Hong Li, Jing-Lin Li, Qin Yu, Fu-Hui Xiao, Hong-Shun Ao, Li-Qin Yang, Ji Li, Yonghan He, Qing-Peng Kong

Summary: This study found that long-lived individuals have lower inflammation levels and higher expression of ATF7. Loss of ATF7 leads to cellular senescence, while its overexpression delays senescence progress and secretion of senescence-associated secretory phenotype. These findings suggest that ATF7 is a longevity-promoting factor that lowers cellular senescence and inflammation in long-lived individuals.

AGING AND DISEASE (2023)

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