Structural Control of NiO–<scp>YSZ</scp>/<scp>LSCF</scp>–<scp>YSZ</scp> Dual‐Layer Hollow Fiber Membrane for Potential Syngas Production

Mohamed, Mohamad Azuwa; Othman, Mohd Hafiz Dzarfan; Mutalib, Mashetoh Abd; Rahman, Mukhlis A.; Ismail, Ahmad Fauzi; Dzahir, Mohd Irfan Hatim Mohamed

doi:10.1111/ijac.12561

Cited by 12 publications

(5 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This process (particle coalescence) can be observed in Figure B and probable contributed to the increase in the mechanical resistance of the hollow fiber. Mohamed et al also investigated the influence of sintering temperature on the morphology of NiO–YSZ/LSCF–YSZ hollow fibers and observed a densification of the fiber outer layer when the sintering temperature was further increased to 1300°C.…”

Section: Resultsmentioning

confidence: 99%

Influence of sintering temperature on the morphology of ceramic hollow fibers prepared from niobium pentoxide

Ferreira

Bessa

Cardoso

et al. 2018

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

Ceramic hollow fibers were prepared by the phase inversion and sintering method using niobium pentoxide (Nb 2 O 5 ) as an innovative starting material. X-ray diffraction and Raman analyses revealed the same monoclinic crystalline phase for the ceramic material, H-Nb 2 O 5 , at all the evaluated sintering temperatures. According to SEM images, the starting material was composed of polydisperse particles of irregular size and shape with sizes ranging from 12.5 to 89.7 μm. The increase in the sintering temperature caused particles agglomeration. In the hollow fiber precursor (without sintering), Nb 2 O 5 grains were surrounded by the coagulated polymer. The polymeric phase was eliminated when the fibers were sintered at temperatures above 600°C. When sintered at 1350°C, the outer surface of the fiber presented elongated crystals of well-defined shape, while agglomerated round shape grains were observed at the inner surface of the fiber. Formation of these elongated crystals was probable due to the material sintering at high temperatures (up to 1350°C) for more than 300 minutes. This study demonstrated the potential for general applicability of niobium pentoxide to fabricate ceramic hollow fiber membranes. K E Y W O R D Shollow fibers, niobium pentoxide, phase inversion, sintering technique

show abstract

Section: Resultsmentioning

confidence: 99%

Influence of sintering temperature on the morphology of ceramic hollow fibers prepared from niobium pentoxide

Ferreira

Bessa

Cardoso

et al. 2018

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

show abstract

“…The viscosity of the suspensions affects the well-extrusion to ensure the stable membrane thickness and diameter. The inner membrane suspension tends to have a greater viscosity than the outer layer suspension which due to achieve stable and strong interconnection between two layers [8,30]. The main factor affecting the viscosity value is particle size and ratio of the material, especially the powder from perovskite and metal oxide as well as YSZ.…”

Section: Fabrication Method: Co-extrusion Followed By Co-sinteringmentioning

confidence: 99%

“…For instance, La0.6Sr0.4Co0.2Fe0.8O3-δ (LSCF)-based membrane has attracted more interest for oxygen separator and catalyst for methane conversion [4]. Subsequently, a dual-layer hollow fibre membrane began to be developed in an effort to improve the membrane performance both as simultaneous oxygen separator from air and catalyst, namely NiO-YSZ/LSCF-YSZ [5][6][7][8]. Yttria-stabilized zirconia (YSZ) also known to improve the diffusion and conductivity as well as prevent the ionic and electronic block in one side of the membrane [6].…”

Section: Introductionmentioning

confidence: 99%

Grand Challenges of Perovskite and Metal Oxide-based Membrane: A Form of Dual-layer Hollow Fibre

Nurherdiana

Gunawan

Widiastuti

et al. 2021

AMST

View full text Add to dashboard Cite

Perovskite and metal oxides-based dual-layer hollow fibre membrane (DHF) has a high appeal as separator and catalyst for methane conversion application which operated at intermediate and high temperature. The membrane mostly fabricated via the co-extrusion followed by co-sintering method, which is quite challenging, due to the complexity to handle the barrier between layers from delamination, membrane cracking and crystal structure distortion which affects the material performance in a DHF form. This recent review clarifies the challenges in the DHF fabrication process to regulate physical and chemical properties in terms of mechanical strength, tightness, elemental distribution, and crystal structure stability. The based material of the membrane focuses on NiO-YSZ in the inner layer directly interconnected with LSCF-YSZ in the outer layer. The understanding of the challenges in DHF fabrication, will further reduce crucial errors in the fabrication process and accelerate performance improvement for application such as syngas, methanol and long-chain hydrocarbons production, and solid oxide fuel cell.

show abstract

“…The DLHF precursors were prepared via process called phase inversion and co‐extrusion process. The extrusion setup was reported elsewhere 14‐16 . The condition for spinning such as air gap, bore fluid rate and anode and electrolyte extrusion rate is shown in Table 2.…”

Section: Experimental Methodologymentioning

confidence: 99%

“…The extrusion setup was reported elsewhere. [14][15][16] The condition for spinning such as air gap, bore fluid rate and anode and electrolyte extrusion rate is shown in Table 2. The produced hollow fiber (HF) was soaked in the water bath for 24 hours to allow all of the solvent in the structures to completely move to nonsolvent phase.…”

Section: Preparation Of Dlhf By Coextrusion/co-sintering Techniquementioning

confidence: 99%

Effect of electrolyte thickness manipulation on enhancing carbon deposition resistance of methane‐fueled solid oxide fuel cell

et al. 2020

Self Cite

View full text Add to dashboard Cite

Summary Dual‐layer hollow fiber (DLHF) micro‐tubular solid oxide fuel cell (MT‐SOFC) consisting of nickel oxide‐yttria‐stabilized zirconia (NiO‐YSZ) anode/YSZ electrolyte was fabricated via a single‐step phase inversion‐based co‐extrusion/co‐sintering technique in order to investigate the effect of different electrolyte extrusion rates (1‐5 mL min−1) at different sintering temperature (1350°C, 1400°C, and 1450°C) under methane (CH4) condition. The DLHF co‐sintered at 1450°C was chosen as optimum temperature due to the good mechanical strength and gas‐tight property. Meanwhile, 18 to 34 μm of electrolyte thickness was achieved when electrolyte extrusion rate increase from 1 to 5 mL min−1. Power density as high as 0.32 W cm−2 was obtained on the cell with the electrolyte layer of 18 μm in thickness (DLHF1) which is 20% higher than the cell with an electrolyte layer of 34 μm (DLHF5) which was only 0.12 W cm−2 when operated at 850°C. However, DLHF1 had suffered cracking formation that originated from anode site which shortened the stability test duration to only 8 hours of survival under 750°C. While DLHF5 can operate up to 15 hours but an increase in electrolyte thickness had resulted in higher ohmic area‐specific resistance that lowering the power density. Fifty‐seven percent reduction in cell performance was observed under methane condition when compared to the cell that performs using hydrogen gas due to the carbon deposition as proven by Raman spectroscopy and carbon, hydrogen, nitrogen, and sulfur analyzer.

show abstract

Structural Control of NiO–YSZ/LSCF–YSZ Dual‐Layer Hollow Fiber Membrane for Potential Syngas Production

Cited by 12 publications

References 29 publications

Influence of sintering temperature on the morphology of ceramic hollow fibers prepared from niobium pentoxide

Influence of sintering temperature on the morphology of ceramic hollow fibers prepared from niobium pentoxide

Grand Challenges of Perovskite and Metal Oxide-based Membrane: A Form of Dual-layer Hollow Fibre

Effect of electrolyte thickness manipulation on enhancing carbon deposition resistance of methane‐fueled solid oxide fuel cell

Contact Info

Product

Resources

About