Recent advances in nanoporous materials for renewable energy resources conversion into fuels

Fu, Jintao; Detsi, Eric; Hosson, J.T.M. de

doi:10.1016/j.surfcoat.2018.05.001

Cited by 33 publications

(18 citation statements)

References 136 publications

(271 reference statements)

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“…Nanoporous materials are a class of substances that contain nanoscale pores (Fu et al, 2018). According to the International Union of Pure and Applied Chemistry, these materials are divided into three groups based on their pore diameter: microporous (pore diameter under 2 nm), mesoporous (pore diameter between 2 and 50 nm) and macroporous (pore diameter above 50 nm) (Rouquerol et al, 1994).…”

Section: Nanoporous Materials-supported Ils In Biodiesel Productionmentioning

confidence: 99%

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Recent Advances of Biodiesel Production Using Ionic Liquids Supported on Nanoporous Materials as Catalysts: A Review

2020

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For the last two decades, the biodiesel attracted increasing attention as a promising biofuel to replace fossil diesel. However, the non-recyclability of homogeneous alkali catalysts and waste generation due to subsequent water washing remained as one of the major drawbacks of the biodiesel production process in the industry. Ionic liquids are one of the best alternatives to replace alkali catalysts owing to their unique properties such as non-volatility, excellent solubility for various organic and inorganic materials, structure tunability, environment-friendliness, and wide liquid temperature. However, high viscosity and difficult recovery have limited their application. Recently, heterogenization of ionic liquids on solid supports has been proposed to circumvent these issues. Among these solids, nanoporous materials have shown great potential in providing stable supports with high porosity and specific surface area. This paper reviews the recent developments in designing ionic liquids deposited on nanoporous materials as catalysts for biodiesel production. The emphasis was on the application of this type of catalysts for the optimization of reaction conditions. Moreover, challenges and opportunities for improving the overall production process in the presence of these catalysts were discussed. Despite that high biodiesel yields were obtained over many of nanoporous material-supported ionic liquids, their significantly higher cost compared to the conventional catalysts remained a major challenge. This issue can be overcome by employing less expensive cations and anions, increasing the loading amount of ionic liquids, and improving catalyst reusability in future studies.

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Section: Nanoporous Materials-supported Ils In Biodiesel Productionmentioning

confidence: 99%

“…They possess high surface area, uniform pore distribution, and a large number of active sites per unit surface area. In virtue of these characteristics, these solids have been used not only as novel supports for ILs (Selvam et al, 2012), but also as green catalysts for biofuel production (Fu et al, 2018;Sharma et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Recent Advances of Biodiesel Production Using Ionic Liquids Supported on Nanoporous Materials as Catalysts: A Review

2020

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“…Nanoporous materials are categorized as an important class of nanostructured material that possess unique surface and structural characteristics, including high surface area, tunable pore sizes, tunable pore geometries, as well as surface topographies with porous architectures. These unique characteristics of nanoporous materials underline their applications in various fields, such as ion-exchange [ 1 ], separation [ 2 ], catalysis [ 3 ], sensors [ 4 ], water purification [ 5 ], CO 2 capture and storage [ 6 ], renewable energy [ 7 , 8 ], targeted drug delivery [ 9 ], tissue engineering [ 10 ], and implants [ 11 ]. For example, the presence of highly active low-coordinated atoms (i.e., atoms with lower numbers of bonds such as atoms on surfaces, steps, and kinks) on interconnected curved backbones of nanoporous structures make them suitable for catalytic applications.…”

Section: Introductionmentioning

confidence: 99%

Recent Advancements in the Fabrication of Functional Nanoporous Materials and Their Biomedical Applications

et al. 2022

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Functional nanoporous materials are categorized as an important class of nanostructured materials because of their tunable porosity and pore geometry (size, shape, and distribution) and their unique chemical and physical properties as compared with other nanostructures and bulk counterparts. Progress in developing a broad spectrum of nanoporous materials has accelerated their use for extensive applications in catalysis, sensing, separation, and environmental, energy, and biomedical areas. The purpose of this review is to provide recent advances in synthesis strategies for designing ordered or hierarchical nanoporous materials of tunable porosity and complex architectures. Furthermore, we briefly highlight working principles, potential pitfalls, experimental challenges, and limitations associated with nanoporous material fabrication strategies. Finally, we give a forward look at how digitally controlled additive manufacturing may overcome existing obstacles to guide the design and development of next-generation nanoporous materials with predefined properties for industrial manufacturing and applications.

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“…However, the application of traditional PFs are severely restricted by their high brittleness and pulverization, thus many efforts have been made to strengthen them through the incorporation of reinforcements [8,9,10,11,12]. The consistently increasing energy demand and environmental awareness justify the development of rising efforts to seek new renewable and effective toughening agents for PFs [13]. Numerous researchers have utilized natural raw materials such as lignin [14,15,16], tannins [17,18], cardanol [19,20], and bio-oil [21] to toughen PFs.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Bio-oil Phenolic Foam Reinforced with Montmorillonite

Chang

et al. 2019

Polymers

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Introducing bio-oil into phenolic foam (PF) can effectively improve the toughness of PF, but its flame retardant performance will be adversely affected and show a decrease. To offset the decrease in flame retardant performance, montmorillonite (MMT) can be added as a promising alternative to enhance the flame resistance of foams. The present work reported the effects of MMT on the chemical structure, morphological property, mechanical performance, flame resistance, and thermal stability of bio-oil phenolic foam (BPF). The Fourier transform infrared spectroscopy (FT-IR) result showed that the –OH group peaks shifted to a lower frequency after adding MMT, indicating strong hydrogen bonding between MMT and bio-oil phenolic resin (BPR) molecular chains. Additionally, when a small content of MMT (2–4 wt %) was added in the foamed composites, the microcellular structures of bio-oil phenolic foam modified by MMT (MBPFs) were more uniform and compact than that of BPF. As a result, the best performance of MBPF was obtained with the addition of 4 wt % MMT, where compressive strength and limited oxygen index (LOI) increased by 31.0% and 33.2%, respectively, and the pulverization ratio decreased by 40.6% in comparison to BPF. These tests proved that MMT can blend well with bio-oil to effectively improve the flame resistance of PF while enhancing toughness.

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Recent advances in nanoporous materials for renewable energy resources conversion into fuels

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Cited by 33 publications

References 136 publications

Recent Advances of Biodiesel Production Using Ionic Liquids Supported on Nanoporous Materials as Catalysts: A Review

Recent Advances of Biodiesel Production Using Ionic Liquids Supported on Nanoporous Materials as Catalysts: A Review

Recent Advancements in the Fabrication of Functional Nanoporous Materials and Their Biomedical Applications

Preparation and Characterization of Bio-oil Phenolic Foam Reinforced with Montmorillonite

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