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Abstract
Determination of nitration kinetics of o-nitrotoluene with a homogeneously continuous microflow system.
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Affiliation(s)
- Jing Song
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Yongjin Cui
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Guangsheng Luo
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Jian Deng
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Yujun Wang
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
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Urita C, Urita K, Araki T, Horio K, Yoshida M, Moriguchi I. New insights into the heat of adsorption of water, acetonitrile, and n-hexane in porous carbon with oxygen functional groups. J Colloid Interface Sci 2019; 552:412-417. [PMID: 31151018 DOI: 10.1016/j.jcis.2019.05.090] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 05/24/2019] [Accepted: 05/26/2019] [Indexed: 11/29/2022]
Abstract
Isosteric heat of adsorption is exquisitely sensitive to structural changes in carbon surfaces based on the energetic behavior of the interactions between adsorbates and carbon materials. We discuss the relationships between porous structures, oxygen functional groups, and heat of adsorption based on the behavior of the heat of adsorption of polar and non-polar fluids on porous carbon materials with oxygen functional groups. The porosity and functional groups of porous carbon materials were estimated from N2 adsorption isotherms at 77 K and temperature-programmed desorption. High-resolution adsorption isotherms of water, acetonitrile (polar fluid), and n-hexane (non-polar fluid) were measured on porous carbon materials with different pore size distributions and amounts of oxygen functional groups at various temperatures. The heats of adsorption were determined by applying the Clausius-Clapeyron equation to the adsorption isotherms. The heat of adsorption curves directly reflect the effects of interactions of fluid-oxygen functional groups, fluid-basal planes of pore walls, and fluid-fluid interfaces. In particular, the heat of adsorption curve of water is very sensitive to surface oxygen functional groups. This finding indicates the possibility of estimating the relative amounts of oxygen functional groups on porous carbon materials based on the amounts of water adsorbed at specific relative pressures.
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Affiliation(s)
- Chiharu Urita
- Graduate School of Engineering, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Koki Urita
- Graduate School of Engineering, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan.
| | - Takuya Araki
- Graduate School of Engineering, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Keiji Horio
- MicrotracBEL Corp., 8-2-52 Nanko-Higashi, Suminoe-ku, Osaka 559-0031, Japan
| | - Masayuki Yoshida
- MicrotracBEL Corp., 8-2-52 Nanko-Higashi, Suminoe-ku, Osaka 559-0031, Japan
| | - Isamu Moriguchi
- Graduate School of Engineering, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
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Liu L, Tan S(J, Horikawa T, Do D, Nicholson D, Liu J. Water adsorption on carbon - A review. Adv Colloid Interface Sci 2017; 250:64-78. [PMID: 29129312 DOI: 10.1016/j.cis.2017.10.002] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 10/18/2017] [Accepted: 10/22/2017] [Indexed: 10/18/2022]
Abstract
Water adsorption on carbonaceous materials has been studied increasingly in the recent years, not only because of its impact on many industrial processes, but also motivated by a desire to understand, at a fundamental level, the distinctive character of directional interactions between water molecules, and between water molecules and other polar groups, such as the functional groups (FGs) at the surfaces of graphene layers. This paper presents an extensive review of recent experimental and theoretical work on water adsorption on various carbonaceous materials, with the aim of gaining a better understanding of how water adsorption in carbonaceous materials relates to the concentration of FGs, their topology (arrangement of the groups) and the structure of the confined space in porous carbons. Arising from this review we are able to propose mechanisms for water adsorption in carbonaceous materials as the adsorbate density increases. The intricate interplay between the roles of FGs and confinement makes adsorption of water on carbon materials very different from that of other simple molecules.
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Affiliation(s)
- Arindam Modak
- Department of Materials Science; Indian Association for the Cultivation of Science; Jadavpur Kolkata 700032 India
| | - Asim Bhaumik
- Department of Materials Science; Indian Association for the Cultivation of Science; Jadavpur Kolkata 700032 India
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Roberson LB, Poggi MA, Kowalik J, Smestad GP, Bottomley LA, Tolbert LM. Correlation of morphology and device performance in inorganic–organic TiO2–polythiophene hybrid solid-state solar cells. Coord Chem Rev 2004. [DOI: 10.1016/j.ccr.2004.02.013] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Phillips J, Kelly D, Radovic L, Xie F. Microcalorimetric Study of the Influence of Surface Chemistry on the Adsorption of Water by High Surface Area Carbons. J Phys Chem B 2000. [DOI: 10.1021/jp994270j] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jonathan Phillips
- Engineering Sciences and Applications Division, Los Alamos National Laboratory, MS C930, Los Alamos, New Mexico 87545, Chemical Science and Technology Division, Los Alamos National Laboratory, MS J565, Los Alamos, New Mexico 87545, Department of Energy and Geo-Environmental Engineering, The Pennsylvania State University, 205 Hosler Building, University Park, Pennsylvania 16802, and Department of Chemical Engineering, The Pennsylvania State University, 133 Fenske Laboratory, University Park, Pennsylvania
| | - Dan Kelly
- Engineering Sciences and Applications Division, Los Alamos National Laboratory, MS C930, Los Alamos, New Mexico 87545, Chemical Science and Technology Division, Los Alamos National Laboratory, MS J565, Los Alamos, New Mexico 87545, Department of Energy and Geo-Environmental Engineering, The Pennsylvania State University, 205 Hosler Building, University Park, Pennsylvania 16802, and Department of Chemical Engineering, The Pennsylvania State University, 133 Fenske Laboratory, University Park, Pennsylvania
| | - Ljubisa Radovic
- Engineering Sciences and Applications Division, Los Alamos National Laboratory, MS C930, Los Alamos, New Mexico 87545, Chemical Science and Technology Division, Los Alamos National Laboratory, MS J565, Los Alamos, New Mexico 87545, Department of Energy and Geo-Environmental Engineering, The Pennsylvania State University, 205 Hosler Building, University Park, Pennsylvania 16802, and Department of Chemical Engineering, The Pennsylvania State University, 133 Fenske Laboratory, University Park, Pennsylvania
| | - Feng Xie
- Engineering Sciences and Applications Division, Los Alamos National Laboratory, MS C930, Los Alamos, New Mexico 87545, Chemical Science and Technology Division, Los Alamos National Laboratory, MS J565, Los Alamos, New Mexico 87545, Department of Energy and Geo-Environmental Engineering, The Pennsylvania State University, 205 Hosler Building, University Park, Pennsylvania 16802, and Department of Chemical Engineering, The Pennsylvania State University, 133 Fenske Laboratory, University Park, Pennsylvania
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