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Peng S, Ma Z, Ma J, Han Z, Wang H, Wang B, Zhao F, Li G. Fabrication of γ-Al 2O 3 Nanoarrays on Aluminum Foam Assisted by Hydroxide for Monolith Catalysts. ACS OMEGA 2023; 8:1643-1651. [PMID: 36643468 PMCID: PMC9835627 DOI: 10.1021/acsomega.2c07237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 12/20/2022] [Indexed: 06/17/2023]
Abstract
Heat distribution and good adhesion of the washcoat on monolith catalysts are critical to improving catalytic activity and long-term stability. Compared with cordierite, metal foam presents a high thermal conductivity coefficient. Also, the availability of "washcoat" in situ grown on metal substrates opens the door to eliminating the problem of coating peeling. Generally, hydrothermal or thermal methods are used for the fabrication of in situ grown washcoat on metal substrates. In this research, the aluminum foam monolith vertically aligned Al2O3 nanowire array is successfully prepared at ambient temperature in an alkaline solution for the first time. Furthermore, the Pt-loaded Al2O3 nanowire array (0.5 gPt/L monolith) is applied to C2H4 degradation. The catalyst converts 90% C2H4 at 147 °C with a gas hourly space velocity (GHSV) of 20,000 h-1. And a little decrease (1%) is observed in catalytic activity, even in 15 vol % water vapors. The catalysts show good thermal stability and water resistance property over 36 h at 300 °C. Above all, this study presents a simple way of in situ growth of washcoat on metal-substrate monolith with potentially scaled manufacturing. And the monolith catalyst shows good catalytic performance on C2H4, which can be applied for volatile organic compound treatment.
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Affiliation(s)
- Shengpan Peng
- National
Institute of Clean-and-Low-Carbon Energy, Future Science City, Changping
District, Beijing 102211, China
| | - Ziran Ma
- National
Institute of Clean-and-Low-Carbon Energy, Future Science City, Changping
District, Beijing 102211, China
| | - Jing Ma
- National
Institute of Clean-and-Low-Carbon Energy, Future Science City, Changping
District, Beijing 102211, China
| | - Zhihua Han
- National
Institute of Clean-and-Low-Carbon Energy, Future Science City, Changping
District, Beijing 102211, China
| | - Hongyan Wang
- National
Institute of Clean-and-Low-Carbon Energy, Future Science City, Changping
District, Beijing 102211, China
| | - Baodong Wang
- National
Institute of Clean-and-Low-Carbon Energy, Future Science City, Changping
District, Beijing 102211, China
| | - Feng Zhao
- Institute
of Process Engineering, Chinese Academy of Sciences, 1#, North 2nd Street, Beijing 100190, China
| | - Ge Li
- National
Institute of Clean-and-Low-Carbon Energy, Future Science City, Changping
District, Beijing 102211, China
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Selected Aspects of Sustainable Mobility Reveals Implementable Approaches and Conceivable Actions. SUSTAINABILITY 2021. [DOI: 10.3390/su132212918] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The transportation sector plays a prominent role in driving the economy of any given nation. However, with the recent tensions arising in and around the transportation sector, sustainable mobility concepts have evolved. However, it is quite unclear whether sustainable mobility is feasible and exhibits economic returns, environmental benefits, and societal advantages. Hence, taking into account the environmental, economic, and social impact, and technical possibilities, this study intends to analyse sustainable mobility in relation to economic returns, environmental benefits and societal advantages using bibliometric analysis. For this study, we considered two decades of research, from 2001 to 2021. An in-depth search was performed on articles generated in the last two decades to assess the state of the literature on sustainable mobility. The most reverent, frequently referenced papers and influential journals in the field of sustainable mobility were identified. The acquired findings highlight the most prominent publications, journals, and authors who have made significant contributions to sustainable mobility studies, as well as the sub-areas or themes linked to sustainable mobility. Overall, the analysis discovered current paradigms, significant research topics, and a relationship between the domains of sustainable mobility studies. Meanwhile, this study also demonstrates advancements in the primary themes and sub-areas during the previous 20 years and alterations in future research fields. In addition, this study identified the promotion of rapid-reliable-safe-convenient (RRSC) transportation services, reduction in urban car traffic, and support to low transportation demand as the critical steps that require immediate attention in order to build a sustainable mobility future. We also observed that hydrogen would be a promising fuel and potential technology for the future mobility sector in the post-COVID era.
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