Feasibility of preparing additive manufactured porous stainless steel felts with mathematical micro pore structure as novel catalyst support for hydrogen production via methanol steam reforming

Lei, Hong-Yuan; Li, Jing‐Rong; Wang, Qinghui; Xu, Zhijia; Zhou, Wei; Yu, Changlin; Zheng, Tianqing

doi:10.1016/j.ijhydene.2019.07.187

Cited by 29 publications

(7 citation statements)

References 46 publications

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“…However, the catalyst support has great effects on the catalytic reaction rate and conversion rate of the micro-reforming reactors. Lei et al adopted TPMS structures as the catalyst support [60] as shown in figure 21(b). Compared with the commercial solutions, the hydrogen production performances can be improved by TPMS.…”

Section: Chemical Applicationsmentioning

confidence: 99%

“…The smooth internal surfaces and interconnected pores can supply enough space for cells to attach and grow. Due to the high volume specific surface areas, TPMS can also be utilized as heat sinks [57][58][59], chemical microreactors [60,61], and membranes [62,63]. Furthermore, the wave energy will be weakened after multiple reflections in the internal architectures of TPMS porous structures.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Triply periodic minimal surface (TPMS) porous structures: from multi-scale design, precise additive manufacturing to multidisciplinary applications

Feng

Yao

et al. 2022

Int. J. Extrem. Manuf.

179

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Inspired by natural porous architectures, numerous attempts have been made to generate porous structures. Owing to the smooth surfaces, highly interconnected porous architectures, and mathematical controllable geometry features, triply periodic minimal surface (TPMS) is emerging as an outstanding solution to constructing porous structures in recent years. However, many advantages of TPMS are not fully utilized in current research. Critical problems of the process from design, manufacturing to applications need further systematic and integrated discussions. In this work, a comprehensive overview of TPMS porous structures is provided. In order to generate the digital models of TPMS, the geometry design algorithms and performance control strategies are introduced according to diverse requirements. Based on that, precise additive manufacturing methods are summarized for fabricating physical TPMS products. Furthermore, actual multidisciplinary applications are presented to clarify the advantages and further potential of TPMS porous structures. Eventually, the existing problems and further research outlooks are discussed.

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Section: Chemical Applicationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Triply periodic minimal surface (TPMS) porous structures: from multi-scale design, precise additive manufacturing to multidisciplinary applications

Feng

Yao

et al. 2022

Int. J. Extrem. Manuf.

179

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“…16 However, these techniques fail to repeatably produce ordered and controllable three-dimensional structures, whose optimized internals provide enhanced mass transfer efficiency over stochastic foam-like structures. 17,18 Therefore, to manufacture hierarchically porous photocatalysts with controlled macrostructures, the combination of additive manufacturing (AM) and dealloying was provided as an effective approach. 19 Laser powder bed fusion (LPBF), as a promising metal processing technique in the AM family, enables the preparation of customized objects with complex geometries by rapidly melting metal powders layer-by-layer with lasers.…”

Section: Introductionmentioning

confidence: 99%

“…Traditionally, different synthesis strategies have been developed to fabricate photocatalysts with attractive hierarchical pores, including selective leaching, self-formation, polymer templating, etc . However, these techniques fail to repeatably produce ordered and controllable three-dimensional structures, whose optimized internals provide enhanced mass transfer efficiency over stochastic foam-like structures. , …”

Section: Introductionmentioning

confidence: 99%

Hierarchically Porous TiO₂ Photocatalyst Prepared by Additive Manufacturing and Dealloying for Highly Efficient Photocatalytic Degradation of Tetracycline

Wei,

Chen,

Guo

et al. 2024

ACS EST Water

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Hierarchically porous photocatalysts exhibit superior light-harvesting capacity and enhanced photocatalytic activity. In this work, a facile method by combining additive manufacturing (AM) and dealloying was employed to prepare a hierarchically porous photocatalyst, namely, nanoporous-TiO 2 -encapsulating macroporous-double-gyroid-structure photocatalyst (TiO 2 @DGS). It was found that TiO 2 @DGS possessed deterministic macropores and interconnected nanopores, which offered efficient mass transfer channels and abundant active sites, respectively. Thus, TiO 2 @DGS showed excellent photocatalytic capability under ultraviolet− visible (UV−vis) light irradiation and achieved a tetracycline degradation efficiency of over 90% within 60 min (photocatalytic rate constant k = 4.0 × 10 −2 min −1 ). Furthermore, TiO 2 @DGS exhibited excellent durability and reusability due to its stable threedimensional structures. This work not only exemplifies the high performance of the prepared TiO 2 @DGS for environmental remediation but also provides an innovative approach to introduce tailored macrostructures into hierarchically porous photocatalysts through the incorporation of AM and dealloying.

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Hierarchically Structured Components: Design, Additive Manufacture, and Their Energy Applications

Wang

Xuan

Zhang

et al. 2021

Adv Materials Technologies

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term solutions are urgently needed before adequate supply of the renewable energy. [1,2] Improvement of efficiency in the energy production and consumption processes is a key factor to address these problems. Meanwhile, the large reaction rate is a key factor to meet the industrial energy requirements. [1][2][3][4][5] Mass transport intensification is an effective method to improve the efficiency and reaction rate in the adsorptions, chemical reactions, and electrochemical reactions, which plays crucial roles in the gas (H 2 , CH 4 , CO 2 , etc.) storage, [6,7] energy conversion, [8] and energy storage. [3,9,10] Recently, novel batteries [2,3,[11][12][13] and microreactors [8,[14][15][16][17][18] for the gas (H 2 , CH 4 , CO 2 , etc.) storage [6,7] and energy conversion [8] have been developed to meet the requirements of high efficiency and rates. In these devices, the mass transport intensification is particularly important to acquire the high selectivity, large reaction rate, great conversion efficiency. [2,8,19,20] The mass transfer steps in the monolithic adsorbents, structured catalysts, and shaped electrodes are similar. Therefore, it is possible to use an identical term to describe the monolithic adsorbents, structured catalysts, and shaped electrodes for convenience to discuss the mass transfer processes. Herein, we use the hierarchically structured components (HSCs) to describe the structures which are comprised of designed channels and matrix between channels, where the matrix is made from functional materials (ceramics, carbon, metals, etc.) with pores in the size from nanometer to sub-millimeters, as illustrated in Figure 1a. In the flow batteries and fuel cells, the assembly of bipolar plate and electrode is regarded as HSC.Generally, the reactants undergo four steps (distribution, adsorption, acceleration, and reaction) in the HSC, as shown in Figure 1b-e. The distribution starts as soon as the reactant flows into the inlet. In this step, the reactant is distributed across the HSC through the designed channels, as shown in Figure 1b. [21,22] Subsequently the fluid is adsorbed by the macropores (>50 nm) which act as buffers for the reactants in the matrix, shown in Figure 1c. [23] As shown in Figure 1d,e, the reactants are accelerated by the mesopores (2-50 nm) and transferred to the micropores (<2 nm) which provide high surface area for the active sites. [23][24][25] After reaction at the active sites, the products are transferred by the mesopores and macropores to the outlet, successively. [26,27] Therefore, the Pursuing high energy efficiency and reaction rate is an effective direction in mitigating the energy and climate crisis. Mass transfer intensification is a powerful approach to enhance the energy efficiency and reaction rate in the energy conversion and storage processes. The nature-inspired channels are outstanding tools to uniformly distribute the reactants, fast remove products, and reduce the diffusion distance for mass transfer intensification in monolithic adsorbents, structured catal...

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Feasibility of preparing additive manufactured porous stainless steel felts with mathematical micro pore structure as novel catalyst support for hydrogen production via methanol steam reforming

Cited by 29 publications

References 46 publications

Triply periodic minimal surface (TPMS) porous structures: from multi-scale design, precise additive manufacturing to multidisciplinary applications

Triply periodic minimal surface (TPMS) porous structures: from multi-scale design, precise additive manufacturing to multidisciplinary applications

Hierarchically Porous TiO₂ Photocatalyst Prepared by Additive Manufacturing and Dealloying for Highly Efficient Photocatalytic Degradation of Tetracycline

Hierarchically Structured Components: Design, Additive Manufacture, and Their Energy Applications

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Feasibility of preparing additive manufactured porous stainless steel felts with mathematical micro pore structure as novel catalyst support for hydrogen production via methanol steam reforming

Cited by 29 publications

References 46 publications

Triply periodic minimal surface (TPMS) porous structures: from multi-scale design, precise additive manufacturing to multidisciplinary applications

Triply periodic minimal surface (TPMS) porous structures: from multi-scale design, precise additive manufacturing to multidisciplinary applications

Hierarchically Porous TiO2 Photocatalyst Prepared by Additive Manufacturing and Dealloying for Highly Efficient Photocatalytic Degradation of Tetracycline

Hierarchically Structured Components: Design, Additive Manufacture, and Their Energy Applications

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Hierarchically Porous TiO₂ Photocatalyst Prepared by Additive Manufacturing and Dealloying for Highly Efficient Photocatalytic Degradation of Tetracycline