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Ripepi D, Zaffaroni R, Schreuders H, Boshuizen B, Mulder FM. Ammonia Synthesis at Ambient Conditions via Electrochemical Atomic Hydrogen Permeation. ACS ENERGY LETTERS 2021; 6:3817-3823. [PMID: 34805525 PMCID: PMC8593895 DOI: 10.1021/acsenergylett.1c01568] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 09/22/2021] [Indexed: 06/13/2023]
Abstract
Direct electrochemical nitrogen reduction holds the promise of enabling the production of carbon emission-free ammonia, which is an important intermediate in the fertilizer industry and a potential green energy carrier. Here we show a strategy for ambient condition ammonia synthesis using a hydrogen permeable nickel membrane/electrode that spatially separates the electrolyte and hydrogen reduction side from the dinitrogen activation and hydrogenation sites. Gaseous ammonia is produced catalytically in the absence of electrolyte via hydrogenation of adsorbed nitrogen by electrochemically permeating atomic hydrogen from water reduction. Dinitrogen activation at the polycrystalline nickel surface is confirmed with 15N2 isotope labeling experiments, and it is attributed to a Mars-van Krevelen mechanism enabled by the formation of N-vacancies upon hydrogenation of surface nitrides. We further show that gaseous hydrogen does not hydrogenate the adsorbed nitrogen, strengthening the benefit of having an atomic hydrogen permeable electrode. The proposed approach opens new directions toward green ammonia.
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2
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The influence of modifying nanoflower and nanostar type Pd coatings on low temperature hydrogen permeability through Pd-containing membranes. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2020.118894] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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3
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Petriev I, Pushankina P, Lutsenko I, Shostak N, Baryshev M. Synthesis, Electrocatalytic and Gas Transport Characteristics of Pentagonally Structured Star-Shaped Nanocrystallites of Pd-Ag. NANOMATERIALS 2020; 10:nano10102081. [PMID: 33096829 PMCID: PMC7589313 DOI: 10.3390/nano10102081] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 10/17/2020] [Accepted: 10/19/2020] [Indexed: 11/16/2022]
Abstract
The method of synthesis of bimetallic Pd-Ag pentagonally structured catalyst "nanostar" on the surface of Pd-23%Ag alloy films has been developed. The resulting catalyst was studied as a highly active functional layer for methanol oxidation reaction (MOR) in alkaline media and the intensification of hydrogen transport through the Pd-23%Ag membrane in the processes of hydrogen diffusion purification. A modifying layer with a controlled size, composition and excellent electrocatalytic activity was synthesized by electrochemical deposition at a reduced current density compared to classical methods. The low deposition rate affects the formation of pentagonally structured nanocrystallites, allowing Pd and Ag particles to form well-defined structures due to the properties of the surfactant used. Electrochemical studies have demonstrated that the catalyst synthesized by the "nanostar" method shows better electrocatalytic activity in relation to MOR and demonstrates a higher peak current (up to 17.82 µA cm-2) in comparison with one for the catalyst synthesized by the "nanoparticle" method (up to 10.66 µA cm-2) in a cyclic voltammetric study. The nanostar catalyst electrode releases the highest current density (0.25 µA cm-2) for MOR and demonstrates higher catalytic activity for the oxidation of possible intermediates such as sodium formate in MOR. In the processes of diffusion membrane purification of hydrogen, a multiple increase in the density of the penetrating flux of hydrogen through the membranes modified by the "nanostar" catalyst (up to 10.6 mmol s-1 m-2) was demonstrated in comparison with the membranes modified by the "nanoparticles" method (up to 4.49 mmol s-1 m-2). Research data may indicate that the properties of the developed pentagonally structured catalyst "nanostar" and its enhanced activity with respect to reactions involving hydrogen increase the desorption activity of the membrane, which ultimately accelerates the overall stepwise transfer of hydrogen across the membrane.
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Affiliation(s)
- Iliya Petriev
- Department of Physics, Kuban State University, 350040 Krasnodar, Russia; (P.P.); (I.L.); (M.B.)
- Laboratory of Problems of Stable Isotope Spreading in Living Systems, Southern Scientific Centre of the RAS, 344000 Rostov-on-Don, Russia
- Correspondence:
| | - Polina Pushankina
- Department of Physics, Kuban State University, 350040 Krasnodar, Russia; (P.P.); (I.L.); (M.B.)
| | - Ivan Lutsenko
- Department of Physics, Kuban State University, 350040 Krasnodar, Russia; (P.P.); (I.L.); (M.B.)
| | - Nikita Shostak
- Department of Oil and Gas Business, Kuban State Technological University, 350040 Krasnodar, Russia;
| | - Mikhail Baryshev
- Department of Physics, Kuban State University, 350040 Krasnodar, Russia; (P.P.); (I.L.); (M.B.)
- Department of Oil and Gas Business, Kuban State Technological University, 350040 Krasnodar, Russia;
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Bellanger G. Prospecting Stress Formed by Hydrogen or Isotope Diffused in Palladium Alloy Cathode. MATERIALS (BASEL, SWITZERLAND) 2018; 11:ma11112101. [PMID: 30373098 PMCID: PMC6267294 DOI: 10.3390/ma11112101] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Revised: 03/25/2018] [Accepted: 05/22/2018] [Indexed: 06/08/2023]
Abstract
The objective of this project is to take into account the mechanical constraints formed by diffusion of hydrogen or tritium in watertight palladium alloy cathode. To know the origin of these, it was necessary to discriminating the damaging effects encountered. Effectively, hydrogen and isotope induce deformation, embrittlement, stress corrosion cracking and cathodic corrosion in different regions of cathode. Palladium can be alloyed with silver or yttrium to favourably increase diffusion and reduce these constraints. Effects of electrochemical factors, temperature, cathode structure, adsorbed transient complex of palladium and porous material support are given to estimate and to limit possible damage.
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Vicinanza N, Svenum IH, Peters T, Bredesen R, Venvik H. New Insight to the Effects of Heat Treatment in Air on the Permeation Properties of Thin Pd77%Ag23% Membranes. MEMBRANES 2018; 8:membranes8040092. [PMID: 30309024 PMCID: PMC6315426 DOI: 10.3390/membranes8040092] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 09/13/2018] [Accepted: 09/16/2018] [Indexed: 11/24/2022]
Abstract
Sputtered Pd77%Ag23% membranes of thickness 2.2–8.5 µm were subjected to a three-step heat treatment in air (HTA) to investigate the relation between thickness and the reported beneficial effects of HTA on hydrogen transport. The permeability experiments were complimented by volumetric hydrogen sorption measurements and atomic force microscopy (AFM) imaging in order to relate the observed effects to changes in hydrogen solubility and/or structure. The results show that the HTA—essentially an oxidation-reduction cycle—mainly affects the thinner membranes, with the hydrogen flux increasing stepwise upon HTA of each membrane side. The hydrogen solubility is found to remain constant upon HTA, and the change must therefore be attributed to improved transport kinetics. The HTA procedure appears to shift the transition from the surface to bulk-limited transport to lower thickness, roughly from ~5 to ≤2.2 µm under the conditions applied here. Although the surface topography results indicate that HTA influences the surface roughness and increases the effective membrane surface area, this cannot be the sole explanation for the observed hydrogen flux increase. This is because considerable surface roughening occurs during hydrogen permeation (no HTA) as well, but not accompanied by the same hydrogen flux enhancement. The latter effect is particularly pronounced for thinner membranes, implying that the structural changes may be dependent on the magnitude of the hydrogen flux.
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Affiliation(s)
- Nicla Vicinanza
- Department of Chemical Engineering, Norwegian University of Science and Technology, 7491 Trondheim, Norway.
| | - Ingeborg-Helene Svenum
- Department of Chemical Engineering, Norwegian University of Science and Technology, 7491 Trondheim, Norway.
| | - Thijs Peters
- SINTEF Industry, P.O. Box 124 Blindern, N-0314 Oslo, Norway.
| | - Rune Bredesen
- SINTEF Industry, P.O. Box 124 Blindern, N-0314 Oslo, Norway.
| | - Hilde Venvik
- Department of Chemical Engineering, Norwegian University of Science and Technology, 7491 Trondheim, Norway.
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6
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Løvvik OM, Zhao D, Li Y, Bredesen R, Peters T. Grain Boundary Segregation in Pd-Cu-Ag Alloys for High Permeability Hydrogen Separation Membranes. MEMBRANES 2018; 8:membranes8030081. [PMID: 30213115 PMCID: PMC6161294 DOI: 10.3390/membranes8030081] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 08/24/2018] [Accepted: 09/02/2018] [Indexed: 11/26/2022]
Abstract
Dense metal membranes that are based on palladium (Pd) are promising for hydrogen separation and production due to their high selectivity and permeability. Optimization of alloy composition has normally focused on bulk properties, but there is growing evidence that grain boundaries (GBs) play a crucial role in the overall performance of membranes. The present study provides parameters and analyses of GBs in the ternary Pd-Ag-Cu system, based on first-principles electronic structure calculations. The segregation tendency of Cu, Ag, and vacancies towards 12 different coherent ∑ GBs in Pd was quantified using three different procedures for relaxation of supercell lattice constants, representing the outer bounds of infinitely elastic and stiff lattice around the GBs. This demonstrated a clear linear correlation between the excess volume and the GB energy when volume relaxation was allowed for. The point defects were attracted by most of the GBs that were investigated. Realistic atomic-scale models of binary Pd-Cu and ternary Pd-Cu-Ag alloys were created for the ∑5(210) boundary, in which the strong GB segregation tendency was affirmed. This is a starting point for more targeted engineering of alloys and grain structure in dense metal membranes and related systems.
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Affiliation(s)
| | - Dongdong Zhao
- Department of Materials Science and Engineering, Norwegian University of Science and Technology (NTNU), 7491 Trondheim, Norway.
| | - Yanjun Li
- Department of Materials Science and Engineering, Norwegian University of Science and Technology (NTNU), 7491 Trondheim, Norway.
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Recent Advances in Pd-Based Membranes for Membrane Reactors. Molecules 2017; 22:molecules22010051. [PMID: 28045434 PMCID: PMC6155637 DOI: 10.3390/molecules22010051] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Revised: 12/12/2016] [Accepted: 12/20/2016] [Indexed: 11/17/2022] Open
Abstract
Palladium-based membranes for hydrogen separation have been studied by several research groups during the last 40 years. Much effort has been dedicated to improving the hydrogen flux of these membranes employing different alloys, supports, deposition/production techniques, etc. High flux and cheap membranes, yet stable at different operating conditions are required for their exploitation at industrial scale. The integration of membranes in multifunctional reactors (membrane reactors) poses additional demands on the membranes as interactions at different levels between the catalyst and the membrane surface can occur. Particularly, when employing the membranes in fluidized bed reactors, the selective layer should be resistant to or protected against erosion. In this review we will also describe a novel kind of membranes, the pore-filled type membranes prepared by Pacheco Tanaka and coworkers that represent a possible solution to integrate thin selective membranes into membrane reactors while protecting the selective layer. This work is focused on recent advances on metallic supports, materials used as an intermetallic diffusion layer when metallic supports are used and the most recent advances on Pd-based composite membranes. Particular attention is paid to improvements on sulfur resistance of Pd based membranes, resistance to hydrogen embrittlement and stability at high temperature.
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8
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Seo BS, Han JY, Lee KY, Kim DW, Ryi SK. Electroless Pd deposition on a planar porous stainless steel substrate using newly developed plating rig and agitating water bath. KOREAN J CHEM ENG 2016. [DOI: 10.1007/s11814-016-0256-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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9
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Design of a Multi-Tube Pd-Membrane Module for Tritium Recovery from He in DEMO. Processes (Basel) 2016. [DOI: 10.3390/pr4040040] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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10
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Castro-Dominguez B, Mardilovich IP, Ma LC, Ma R, Dixon AG, Kazantzis NK, Ma YH. Integration of Methane Steam Reforming and Water Gas Shift Reaction in a Pd/Au/Pd-Based Catalytic Membrane Reactor for Process Intensification. MEMBRANES 2016; 6:membranes6030044. [PMID: 27657143 PMCID: PMC5041035 DOI: 10.3390/membranes6030044] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/23/2016] [Revised: 09/02/2016] [Accepted: 09/09/2016] [Indexed: 12/03/2022]
Abstract
Palladium-based catalytic membrane reactors (CMRs) effectively remove H2 to induce higher conversions in methane steam reforming (MSR) and water-gas-shift reactions (WGS). Within such a context, this work evaluates the technical performance of a novel CMR, which utilizes two catalysts in series, rather than one. In the process system under consideration, the first catalyst, confined within the shell side of the reactor, reforms methane with water yielding H2, CO and CO2. After reforming is completed, a second catalyst, positioned in series, reacts with CO and water through the WGS reaction yielding pure H2O, CO2 and H2. A tubular composite asymmetric Pd/Au/Pd membrane is situated throughout the reactor to continuously remove the produced H2 and induce higher methane and CO conversions while yielding ultrapure H2 and compressed CO2 ready for dehydration. Experimental results involving (i) a conventional packed bed reactor packed (PBR) for MSR, (ii) a PBR with five layers of two catalysts in series and (iii) a CMR with two layers of two catalysts in series are comparatively assessed and thoroughly characterized. Furthermore, a comprehensive 2D computational fluid dynamics (CFD) model was developed to explore further the features of the proposed configuration. The reaction was studied at different process intensification-relevant conditions, such as space velocities, temperatures, pressures and initial feed gas composition. Finally, it is demonstrated that the above CMR module, which was operated for 600 h, displays quite high H2 permeance and purity, high CH4 conversion levels and reduced CO yields.
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Affiliation(s)
- Bernardo Castro-Dominguez
- Center of Inorganic Membrane Studies, Department of Chemical Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA 01609, USA.
| | - Ivan P Mardilovich
- Center of Inorganic Membrane Studies, Department of Chemical Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA 01609, USA.
| | - Liang-Chih Ma
- Center of Inorganic Membrane Studies, Department of Chemical Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA 01609, USA.
| | - Rui Ma
- Center of Inorganic Membrane Studies, Department of Chemical Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA 01609, USA.
| | - Anthony G Dixon
- Center of Inorganic Membrane Studies, Department of Chemical Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA 01609, USA.
| | - Nikolaos K Kazantzis
- Center of Inorganic Membrane Studies, Department of Chemical Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA 01609, USA.
| | - Yi Hua Ma
- Center of Inorganic Membrane Studies, Department of Chemical Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, MA 01609, USA.
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11
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Conde JJ, Maroño M, Sánchez-Hervás JM. Pd-Based Membranes for Hydrogen Separation: Review of Alloying Elements and Their Influence on Membrane Properties. SEPARATION AND PURIFICATION REVIEWS 2016. [DOI: 10.1080/15422119.2016.1212379] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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12
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13
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Wei Y, Xue J, Wang H, Caro J. Hydrogen permeability and stability of BaCe0.85Tb0.05Zr0.1O3− asymmetric membranes. J Memb Sci 2015. [DOI: 10.1016/j.memsci.2015.04.035] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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14
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Wang JW, He Y, Gong H. Various properties of Pd3Ag/TiAl membranes from density functional theory. J Memb Sci 2015. [DOI: 10.1016/j.memsci.2014.10.022] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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15
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Thickness dependent effects of solubility and surface phenomena on the hydrogen transport properties of sputtered Pd77%Ag23% thin film membranes. J Memb Sci 2015. [DOI: 10.1016/j.memsci.2014.11.031] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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16
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Natesakhawat S, Means NC, Howard BH, Smith M, Abdelsayed V, Baltrus JP, Cheng Y, Lekse JW, Link D, Morreale BD. Improved benzene production from methane dehydroaromatization over Mo/HZSM-5 catalysts via hydrogen-permselective palladium membrane reactors. Catal Sci Technol 2015. [DOI: 10.1039/c5cy00934k] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Catalytic Pd membrane reactors improve C6H6 yield compared to fixed-bed reactors.
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Affiliation(s)
- S. Natesakhawat
- National Energy Technology Laboratory
- United States Department of Energy
- Pittsburgh
- USA
- Department of Chemical and Petroleum Engineering
| | - N. C. Means
- National Energy Technology Laboratory
- United States Department of Energy
- Pittsburgh
- USA
- AECOM
| | - B. H. Howard
- National Energy Technology Laboratory
- United States Department of Energy
- Pittsburgh
- USA
| | - M. Smith
- National Energy Technology Laboratory
- United States Department of Energy
- Morgantown
- USA
- AECOM
| | - V. Abdelsayed
- National Energy Technology Laboratory
- United States Department of Energy
- Morgantown
- USA
- AECOM
| | - J. P. Baltrus
- National Energy Technology Laboratory
- United States Department of Energy
- Pittsburgh
- USA
| | - Y. Cheng
- National Energy Technology Laboratory
- United States Department of Energy
- Pittsburgh
- USA
| | - J. W. Lekse
- National Energy Technology Laboratory
- United States Department of Energy
- Pittsburgh
- USA
- AECOM
| | - D. Link
- National Energy Technology Laboratory
- United States Department of Energy
- Pittsburgh
- USA
| | - B. D. Morreale
- National Energy Technology Laboratory
- United States Department of Energy
- Pittsburgh
- USA
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17
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18
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Electroless plating of Pd after shielding the bottom of planar porous stainless steel for a highly stable hydrogen selective membrane. J Memb Sci 2014. [DOI: 10.1016/j.memsci.2014.04.058] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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19
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Saedi S, Madaeni S, Arabi Shamsabadi A, Mottaghi F. The effect of surfactants on the structure and performance of PES membrane for separation of carbon dioxide from methane. Sep Purif Technol 2012. [DOI: 10.1016/j.seppur.2012.08.028] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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20
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Coulter KE, Way JD, Gade SK, Chaudhari S, Alptekin GO, DeVoss SJ, Paglieri SN, Pledger B. Sulfur tolerant PdAu and PdAuPt alloy hydrogen separation membranes. J Memb Sci 2012. [DOI: 10.1016/j.memsci.2012.02.018] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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21
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Ryi SK, Park JS, Hwang KR, Kim DW, An HS. Pd-Cu alloy membrane deposited on alumina modified porous nickel support (PNS) for hydrogen separation at high pressure. KOREAN J CHEM ENG 2011. [DOI: 10.1007/s11814-011-0127-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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22
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On the high pressure performance of thin supported Pd–23%Ag membranes—Evidence of ultrahigh hydrogen flux after air treatment. J Memb Sci 2011. [DOI: 10.1016/j.memsci.2010.11.022] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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23
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Weng CJ, Jhuo YS, Huang KY, Feng CF, Yeh JM, Wei Y, Tsai MH. Mechanically and Thermally Enhanced Intrinsically Dopable Polyimide Membrane with Advanced Gas Separation Capabilities. Macromolecules 2011. [DOI: 10.1021/ma201130s] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chang-Jian Weng
- Department of Chemistry and Center for Nanotechnology, Chung-Yuan Christian University, Chung Li 32023, Taiwan, R.O.C
| | - Yu-Sian Jhuo
- Department of Chemistry and Center for Nanotechnology, Chung-Yuan Christian University, Chung Li 32023, Taiwan, R.O.C
| | - Kuan-Yeh Huang
- Material and Chemical Research Laboratories, Industrial Technology Research Institute, Hsin Chu 310, Taiwan, R.O.C
| | - Chun-Fang Feng
- Department of Chemistry and Center for Nanotechnology, Chung-Yuan Christian University, Chung Li 32023, Taiwan, R.O.C
| | - Jui-Ming Yeh
- Department of Chemistry and Center for Nanotechnology, Chung-Yuan Christian University, Chung Li 32023, Taiwan, R.O.C
| | - Yen Wei
- Department of Chemistry, Drexel University, Philadelphia, Pennsylvania 19104, United States
| | - Mei-Hui Tsai
- Department of Chemical and Materials Engineering, Chin-Yi Institute of Technology, Taichung 41111, Taiwan, R.O.C
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24
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Rahimpour MR, Iranshahi D, Pourazadi E, Paymooni K, Bahmanpour AM. The aromatic enhancement in the axial-flow spherical packed-bed membrane naphtha reformers in the presence of catalyst deactivation. AIChE J 2011. [DOI: 10.1002/aic.12529] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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25
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Iulianelli A, Basile A. Hydrogen production from ethanol via inorganic membrane reactors technology: a review. Catal Sci Technol 2011. [DOI: 10.1039/c0cy00012d] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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26
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Mayer J, Hugenschmidt C, Schreckenbach K. Direct observation of the surface segregation of Cu in Pd by time-resolved positron-annihilation-induced Auger electron spectroscopy. PHYSICAL REVIEW LETTERS 2010; 105:207401. [PMID: 21231264 DOI: 10.1103/physrevlett.105.207401] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2010] [Indexed: 05/30/2023]
Abstract
Density functional theory calculations predict the surface segregation of Cu in the second atomic layer of Pd which has not been unambiguously confirmed by experiment so far. We report measurements on Pd surfaces covered with three and six monolayers of Cu using element selective positron-annihilation-induced Auger electron spectroscopy (PAES) which is sensitive to the topmost atomic layer. Moreover, time-resolved PAES, which was applied for the first time, enables the investigation of the dynamics of surface atoms and hence the observation of the segregation process. The time constant for segregation was experimentally determined to τ=1.38(0.21) h, and the final segregated configuration was found to be consistent with calculations. Time-dependent PAES is demonstrated to be a novel element selective technique applicable for the investigation of, e.g., heterogeneous catalysis, corrosion, or surface alloying.
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Affiliation(s)
- J Mayer
- ZWE FRM II, Lichtenbergstrasse 1, 85747 Garching, Germany.
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27
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Basu S, Khan AL, Cano-Odena A, Liu C, Vankelecom IFJ. Membrane-based technologies for biogas separations. Chem Soc Rev 2010; 39:750-68. [DOI: 10.1039/b817050a] [Citation(s) in RCA: 405] [Impact Index Per Article: 28.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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28
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Wu Z, Hatim IM, Kingsbury BF, Gbenedio E, Li K. A novel inorganic hollow fiber membrane reactor for catalytic dehydrogenation of propane. AIChE J 2009. [DOI: 10.1002/aic.11864] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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29
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Determination of the rate-limiting mechanism for permeation of hydrogen through microfabricated palladium–silver alloy membranes. J Memb Sci 2009. [DOI: 10.1016/j.memsci.2009.06.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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30
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The strategies of molecular architecture and modification of polyimide-based membranes for CO2 removal from natural gas—A review. Prog Polym Sci 2009. [DOI: 10.1016/j.progpolymsci.2008.12.004] [Citation(s) in RCA: 438] [Impact Index Per Article: 29.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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31
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Tosti S, Borgognoni F, Rizzello C, Violante V. Water gas shift reaction via Pd-based membranes. ASIA-PAC J CHEM ENG 2009. [DOI: 10.1002/apj.253] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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32
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Zhang K, Wei X, Rui Z, Li Y, Lin YS. Effect of metal-support interface on hydrogen permeation through palladium membranes. AIChE J 2009. [DOI: 10.1002/aic.11760] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Zhang K, Gao H, Rui Z, Liu P, Li Y, Lin YS. High-Temperature Stability of Palladium Membranes on Porous Metal Supports with Different Intermediate Layers. Ind Eng Chem Res 2009. [DOI: 10.1021/ie801417w] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ke Zhang
- Tianjin Key Laboratory of Applied Catalysis Science and Technology and State Key Laboratory for Chemical Engineering (Tianjin University), School of Chemical Engineering, Tianjin University, Tianjin 300072, China, Department of Chemical Engineering, Arizona State University, Tempe, Arizona 85287, USA, Department of Applied Chemistry, School of Chemical and Biological Technology, Hebei Polytechnic University, Tangshan 063009, China
| | - Huiyuan Gao
- Tianjin Key Laboratory of Applied Catalysis Science and Technology and State Key Laboratory for Chemical Engineering (Tianjin University), School of Chemical Engineering, Tianjin University, Tianjin 300072, China, Department of Chemical Engineering, Arizona State University, Tempe, Arizona 85287, USA, Department of Applied Chemistry, School of Chemical and Biological Technology, Hebei Polytechnic University, Tangshan 063009, China
| | - Zebao Rui
- Tianjin Key Laboratory of Applied Catalysis Science and Technology and State Key Laboratory for Chemical Engineering (Tianjin University), School of Chemical Engineering, Tianjin University, Tianjin 300072, China, Department of Chemical Engineering, Arizona State University, Tempe, Arizona 85287, USA, Department of Applied Chemistry, School of Chemical and Biological Technology, Hebei Polytechnic University, Tangshan 063009, China
| | - Peng Liu
- Tianjin Key Laboratory of Applied Catalysis Science and Technology and State Key Laboratory for Chemical Engineering (Tianjin University), School of Chemical Engineering, Tianjin University, Tianjin 300072, China, Department of Chemical Engineering, Arizona State University, Tempe, Arizona 85287, USA, Department of Applied Chemistry, School of Chemical and Biological Technology, Hebei Polytechnic University, Tangshan 063009, China
| | - Yongdan Li
- Tianjin Key Laboratory of Applied Catalysis Science and Technology and State Key Laboratory for Chemical Engineering (Tianjin University), School of Chemical Engineering, Tianjin University, Tianjin 300072, China, Department of Chemical Engineering, Arizona State University, Tempe, Arizona 85287, USA, Department of Applied Chemistry, School of Chemical and Biological Technology, Hebei Polytechnic University, Tangshan 063009, China
| | - Y. S. Lin
- Tianjin Key Laboratory of Applied Catalysis Science and Technology and State Key Laboratory for Chemical Engineering (Tianjin University), School of Chemical Engineering, Tianjin University, Tianjin 300072, China, Department of Chemical Engineering, Arizona State University, Tempe, Arizona 85287, USA, Department of Applied Chemistry, School of Chemical and Biological Technology, Hebei Polytechnic University, Tangshan 063009, China
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Ryi SK, Park JS, Kim SH, Kim DW, Cho KI. Formation of a defect-free Pd–Cu–Ni ternary alloy membrane on a polished porous nickel support (PNS). J Memb Sci 2008. [DOI: 10.1016/j.memsci.2008.02.055] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Mejdell A, Klette H, Ramachandran A, Borg A, Bredesen R. Hydrogen permeation of thin, free-standing Pd/Ag23% membranes before and after heat treatment in air. J Memb Sci 2008. [DOI: 10.1016/j.memsci.2007.09.024] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Synthesis, Characterization, and Applications of Palladium Membranes. MEMBRANE SCIENCE AND TECHNOLOGY 2008. [DOI: 10.1016/s0927-5193(07)13008-4] [Citation(s) in RCA: 78] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Wang L, Yoshiie R, Uemiya S. Fabrication of novel Pd–Ag–Ru/Al2O3 ternary alloy composite membrane with remarkably enhanced H2 permeability. J Memb Sci 2007. [DOI: 10.1016/j.memsci.2007.08.057] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Preparation of Thin Palladium Composite Membranes and Application to Hydrogen/Nitrogen Separation. Chin J Chem Eng 2007. [DOI: 10.1016/s1004-9541(07)60139-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Nomura M, Nagayo T, Monma K. Pore Size Control of a Molecular Sieve Silica Membrane Prepared by a Counter Diffusion CVD Method. JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 2007. [DOI: 10.1252/jcej.07we065] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Mikihiro Nomura
- Department of Applied Chemistry, Shibaura Institute of Technology
| | - Toshihiro Nagayo
- Department of Applied Chemistry, Shibaura Institute of Technology
| | - Keita Monma
- Department of Applied Chemistry, Shibaura Institute of Technology
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Abate S, Centi G, Perathoner S, Frusteri F. Enhanced stability of catalytic membranes based on a porous thin Pd film on a ceramic support by forming a Pd–Ag interlayer. Catal Today 2006. [DOI: 10.1016/j.cattod.2005.12.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Souleimanova RS, Mukasyan AS, Varma A. Pd membranes formed by electroless plating with osmosis: H2 permeation studies. AIChE J 2006. [DOI: 10.1002/aic.690480210] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Witjens LC, Bitter JH, van Dillen AJ, de Jong KP, de Groot FMF. Pd L3edge XANES investigation of the electronic and geometric structure of Pd/Ag–H membranes. Phys Chem Chem Phys 2004. [DOI: 10.1039/b402540g] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Løvvik OM, Olsen RA. Density functional calculations of hydrogen adsorption on palladium–silver alloy surfaces. J Chem Phys 2003. [DOI: 10.1063/1.1536955] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Lin YM, Rei MH. Separation of hydrogen from the gas mixture out of catalytic reformer by using supported palladium membrane. Sep Purif Technol 2001. [DOI: 10.1016/s1383-5866(01)00094-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Dittmeyer R, Höllein V, Daub K. Membrane reactors for hydrogenation and dehydrogenation processes based on supported palladium. ACTA ACUST UNITED AC 2001. [DOI: 10.1016/s1381-1169(01)00149-2] [Citation(s) in RCA: 320] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Tennison S. Current hurdles in the commercial development of inorganic membrane reactors. ACTA ACUST UNITED AC 2000. [DOI: 10.1016/s0958-2118(01)80001-x] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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