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Nanomaterials
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Advanced Nanomaterials for Gas Capture, Separation and Storage
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Advanced Nanomaterials for Gas Capture, Separation and Storage

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Environmental Nanoscience and Nanotechnology".

Deadline for manuscript submissions: closed (30 September 2023) | Viewed by 4073

Special Issue Editors

Dr. Zheng Sun

E-Mail Website
Guest Editor
State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Xuzhou 221116, China
Interests: microscale fluid flow mechanism; CO2 sequestration; H2 storage materials
Special Issues, Collections and Topics in MDPI journals
Dr. Pengliang Yu

E-Mail Website
Guest Editor
EMS Energy Institute, Departments of Geosciences and of Energy and Mineral Engineering, The Pennsylvania State University, University Park, PA 16802, USA
Interests: heat and mass transport in porous media; CO2/H2 geo-storage

Special Issue Information

Dear Colleagues,

Gas capture, separation and storage play critical roles in energy utilization efficiency, a key issue required to be addressed in traditional petrochemistry and emerging industries aiming at net-zero CO2 emission. The development of industry and technology has brought higher requirements and challenges to gas capture, separation and storage materials and technologies.

The Belt and Road Initiative proposed by China is a common aspiration of all countries along their routes to achieve sustainable development of the environment, economy, society, and people's livelihood. To mitigate global warming and carbon emissions and reach carbon neutrality, CO2 capture and geological storage, hydrogen production, transport and storage project and hydrocarbon/coal recovery must be realized. The development of nanomaterials with desired combination properties and corresponding methods for target applications, which can minimize the environmental impact by gas capture, separation and storage has been having growing attention over the last decades. Green and eco-friendly techniques focus on the mechanism and technology, which reduce the use of hazardous substances and non-renewable sources. Nanomaterials for gas capture, separation and storage are considered to be energy-efficient, low-cost, renewable, and environmental-friendly for a sustainable future.

This Special Issue shall present the latest research updates related to CO2 capture, utilization and storage (CCUS), petrophysics, geology and other areas. In this Special Issue original research articles and reviews are welcome. Research areas may include (but not limited to) the following:

  • Nanomaterials;
  • Nanophenomenon;
  • Nanogeology;
  • CO2/CH4/H2 geo-storage;
  • Transport in porous media;
  • Advanced nanomaterials for gas capture, separation and storage;
  • Mechanisms of gas capture, separation and storage;

We look forward to receiving your contributions.

Dr. Zheng Sun
Dr. Pengliang Yu
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Nanomaterials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2900 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • nanomaterials
  • nanophenomenon
  • nanogeology
  • CO2/CH4/H2 geo-storage
  • transport in porous media

Related Special Issue

Published Papers (4 papers)

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Research

14 pages, 2298 KiB  
Article
Hydrocarbon Sorption in Flexible MOFs—Part III: Modulation of Gas Separation Mechanisms
by Hannes Preißler-Kurzhöfer, Marcus Lange, Jens Möllmer, Oliver Erhart, Merten Kobalz, Harald Krautscheid and Roger Gläser
Nanomaterials 2024, 14(3), 241; https://doi.org/10.3390/nano14030241 - 23 Jan 2024
Viewed by 635
Abstract
Single gas sorption experiments with the C4-hydrocarbons n-butane, iso-butane, 1-butene and iso-butene on the flexible MOFs Cu-IHMe-pw and Cu-IHEt-pw were carried out with both thermodynamic equilibrium and overall sorption kinetics. Subsequent static binary gas mixture experiments of n-butane and [...] Read more.
Single gas sorption experiments with the C4-hydrocarbons n-butane, iso-butane, 1-butene and iso-butene on the flexible MOFs Cu-IHMe-pw and Cu-IHEt-pw were carried out with both thermodynamic equilibrium and overall sorption kinetics. Subsequent static binary gas mixture experiments of n-butane and iso-butane unveil a complex dependence of the overall selectivity on sorption enthalpy, rate of structural transition as well as steric effects. A thermodynamic separation favoring iso-butane as well as kinetic separation favoring n-butane are possible within Cu-IHMe-pw while complete size exclusion of iso-butane is achieved in Cu-IHEt-pw. This proof-of-concept study shows that the structural flexibility offers additional levers for the precise modulation of the separation mechanisms for complex mixtures with similar chemical and physical properties with real selectivities of >10. Full article
(This article belongs to the Special Issue Advanced Nanomaterials for Gas Capture, Separation and Storage)
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10 pages, 2342 KiB  
Communication
CO2 Storage Monitoring via Time-Lapse Full Waveform Inversion with Automatic Differentiation
by Jixin Yang, Pengliang Yu, Suran Wang and Zheng Sun
Nanomaterials 2024, 14(2), 138; https://doi.org/10.3390/nano14020138 - 7 Jan 2024
Cited by 1 | Viewed by 945
Abstract
In the field of CO2 capture utilization and storage (CCUS), recent advancements in active-source monitoring have significantly enhanced the capabilities of time-lapse acoustical imaging, facilitating continuous capture of detailed physical parameter images from acoustic signals. Central to these advancements is time-lapse full [...] Read more.
In the field of CO2 capture utilization and storage (CCUS), recent advancements in active-source monitoring have significantly enhanced the capabilities of time-lapse acoustical imaging, facilitating continuous capture of detailed physical parameter images from acoustic signals. Central to these advancements is time-lapse full waveform inversion (TLFWI), which is increasingly recognized for its ability to extract high-resolution images from active-source datasets. However, conventional TLFWI methodologies, which are reliant on gradient optimization, face a significant challenge due to the need for complex, explicit formulation of the physical model gradient relative to the misfit function between observed and predicted data over time. Addressing this limitation, our study introduces automatic differentiation (AD) into the TLFWI process, utilizing deep learning frameworks such as PyTorch to automate gradient calculation using the chain rule. This novel approach, AD-TLFWI, not only streamlines the inversion of time-lapse images for CO2 monitoring but also tackles the issue of local minima commonly encountered in deep learning optimizers. The effectiveness of AD-TLFWI was validated using a realistic model from the Frio-II CO2 injection site, where it successfully produced high-resolution images that demonstrate significant changes in velocity due to CO2 injection. This advancement in TLFWI methodology, underpinned by the integration of AD, represents a pivotal development in active-source monitoring systems, enhancing information extraction capabilities and providing potential solutions to complex multiphysics monitoring challenges. Full article
(This article belongs to the Special Issue Advanced Nanomaterials for Gas Capture, Separation and Storage)
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20 pages, 13168 KiB  
Article
Peat-Derived ZnCl2-Activated Ultramicroporous Carbon Materials for Hydrogen Adsorption
by Egert Möller, Rasmus Palm, Kenneth Tuul, Meelis Härmas, Miriam Koppel, Jaan Aruväli, Marian Külaviir and Enn Lust
Nanomaterials 2023, 13(21), 2883; https://doi.org/10.3390/nano13212883 - 31 Oct 2023
Viewed by 1246
Abstract
Highly microporous adsorbents have been under considerable scrutiny for efficient adsorptive storage of H2. Of specific interest are sustainable, chemically activated, microporous carbon adsorbents, especially from renewable and organic precursor materials. In this article, six peat-derived microporous carbon materials were synthesized [...] Read more.
Highly microporous adsorbents have been under considerable scrutiny for efficient adsorptive storage of H2. Of specific interest are sustainable, chemically activated, microporous carbon adsorbents, especially from renewable and organic precursor materials. In this article, six peat-derived microporous carbon materials were synthesized by chemical activation with ZnCl2. N2 and CO2 gas adsorption data were measured and simultaneously fitted with the 2D-NLDFT-HS model. Thus, based on the obtained results, the use of a low ratio of ZnCl2 for chemical activation of peat-derived carbon yields highly ultramicroporous carbons which are able to adsorb up to 83% of the maximal adsorbed amount of adsorbed H2 already at 1 bar at 77 K. This is accompanied by the high ratio of micropores, 99%, even at high specific surface area of 1260 m2 g−1, exhibited by the peat-derived carbon activated at 973 K using a 1:2 ZnCl2 to peat mass ratio. These results show the potential of using low concentrations of ZnCl2 as an activating agent to synthesize highly ultramicroporous carbon materials with suitable pore characteristics for the efficient low-pressure adsorption of H2. Full article
(This article belongs to the Special Issue Advanced Nanomaterials for Gas Capture, Separation and Storage)
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14 pages, 4968 KiB  
Article
Nanostructured Carbon-Doped BN for CO2 Capture Applications
by Rimeh Mighri, Kevin Turani-I-Belloto, Umit B. Demirci and Johan G. Alauzun
Nanomaterials 2023, 13(17), 2389; https://doi.org/10.3390/nano13172389 - 22 Aug 2023
Viewed by 904
Abstract
Carbon-doped boron nitride (denoted by BN/C) was prepared through the pyrolysis at 1100 °C of a nanostructured mixture of an alkyl amine borane adduct and ammonia borane. The alkyl amine borane adduct acts as a soft template to obtain nanospheres. This bottom-up approach [...] Read more.
Carbon-doped boron nitride (denoted by BN/C) was prepared through the pyrolysis at 1100 °C of a nanostructured mixture of an alkyl amine borane adduct and ammonia borane. The alkyl amine borane adduct acts as a soft template to obtain nanospheres. This bottom-up approach for the synthesis of nanostructured BN/C is relatively simple and compelling. It allows the structure obtained during the emulsion process to be kept. The final BN/C materials are microporous, with interconnected pores in the nanometer range (0.8 nm), a large specific surface area of up to 767 m2·g−1 and a pore volume of 0.32 cm3·g−1. The gas sorption studied with CO2 demonstrated an appealing uptake of 3.43 mmol·g−1 at 0 °C, a high CO2/N2 selectivity (21) and 99% recyclability after up to five adsorption–desorption cycles. Full article
(This article belongs to the Special Issue Advanced Nanomaterials for Gas Capture, Separation and Storage)
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