A noble metal-free proton-exchange membrane fuel cell based on bio-inspired molecular catalysts

Tran, Phong D.; Morozan, Adina; Archambault, Sophie; Heidkamp, Jonathan; Chenevier, Pascale; Dau, Holger; Fontecave, Marc; Martinent, Audrey; Jousselme, Bruno; Artero, Vincent

doi:10.1039/c4sc03774j

Cited by 73 publications

(60 citation statements)

References 25 publications

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“…On the other hand, the bio-inspired models developed by DuBois, Bullock, and co-workers (e.g., complexes 40 and 44) are quite active for catalytic H 2 oxidation. Some of these complexes have been integrated in fuel-cell-like devices [81]. Looking forward, more catalytically active model complexes of hydrogenases, for both hydrogenation and hydrogen oxidation reactions, remain to be developed.…”

Section: Resultsmentioning

confidence: 99%

Hydrogen-activating models of hydrogenases

Chen

2015

Coordination Chemistry Reviews

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Section: Resultsmentioning

confidence: 99%

Hydrogen-activating models of hydrogenases

Chen

2015

Coordination Chemistry Reviews

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“…The MEA is usually consisted of a PEM (solid electrolyte) and two symmetrical electrodes (anode and cathode) which have precious metal catalysts (e.g., Pt) (Huang et al, 2006;Lai et al, 2012) and non-platinum group metals (Reshetenko, et al, 2016) supported by carbon materials (e.g., carbon black, fiber, and nanotube). Additionally, it is common that the bipolar/end plates and GDLs (e.g., carbon paper (CP) or carbon cloth (CC)) are made using carbon materials (Dicks, 2006;Wissler, 2006;Tran et al, 2015;Zeis, 2015). In recent years, research trends of PEMFCs have focused on accelerating the sluggish kinetics of cathode catalyst, minimizing overall Pt content, and increasing membrane proton conductivity (Scofield et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Effect of Operating Conditions on PAHs Emission from a Single H2-O2 PEM Fuel Cell

Huang

Ming-sheng

Tsai

et al. 2016

Aerosol Air Qual. Res.

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This study investigates the emissions of polycyclic aromatic hydrocarbons (PAHs) from a single hydrogen-oxygen proton exchange membrane (PEM) fuel cell (FC) under different flowrates, temperatures, sampling periods, and membrane-electrode assemblies (MEAs). The results show that Nap, PA, BeP, FL, Pyr, BbC, Ant, and Flu were dominant in anode and cathode emissions of the single PEMFC under different operating conditions. The emission concentrations of Total-PAHs and Total-BaP equivalent carcinogenic potency (BaP eq ) were lower from the anode than from the cathode emission. Moreover, the concentrations of molecular-weight (MW) classified PAHs were in the order low (L) MM-> high (H) MW-> middle (M) MW-PAHs. When the anode/cathode gas flowrates were greater or smaller than 52/35 sccm but at the same sampling volume, the emission concentrations of Total-PAHs and Total-BaP eq increased. The concentration of Total-PAHs decreased but the mass of Total-PAHs increased with the increase of sampling time. However, 64% and 82% of PAH mass were emitted within 12 and 24 h, respectively, based on 36 h sampling at anode/cathode gas flowrates = 52/35 sccm. The concentrations of Total-PAHs or Total-BaP eq of anode or cathode emission were slightly higher at 90°C than at 65°C.The performances of commercial MEAs were in the order SGL < E-TEK < GORE. Nevertheless, the concentrations of anode or cathode emission Total-PAHs or Total-BaP eq for the PEMFC using different MEAs followed the order GORE > E-TEK2 > E-TEK > SGL, while the sums of anode and cathode Total-PAHs emission factors varied with the order SGL > E-TEK > E-TEK2 > GORE (13.3 ± 0.55, 11.5 ± 0.21, 7.91 ± 0.47, and 3.17 ± 0.22 µg g -1 -MEA, respectively). When using the (lab-made) E-TEK2 as the MEA of PEMFC, the PAH profiles of anode and cathode emission gases were similar to those of some carbon materials.

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“…An H 2 -O 2 PEMFC has the main components of membrane-electrode assembly (MEA), gasdiffusion layer (GDL), and bipolar/end plate (Huang et al, 2006;Lai et al, 2012;Tenson and Baby, 2017). It is common that a PEM is symmetrically sandwiched by anode and cathode to prepare the MEA; moreover, the electrodes usually contain precious metal catalysts (e.g., Pt) (Huang et al, 2006;Lai et al, 2012), Pt-based alloys , or non-platinum group metals (Reshetenko, et al, 2016) supported by carbon materials (e.g., carbon black, fiber, and nanotube) which are also used for the fabrication of bipolar/end plates and GDLs (e.g., carbon paper or cloth) (Tran et al, 2015;Zeis, 2015;Lee and Lee, 2016).…”

Section: Introductionmentioning

confidence: 99%

Gas- and Water-Phase PAHs Emitted from a Single Hydrogen-Oxygen PEM Fuel Cell

Huang

Tsai

Chen

et al. 2018

Aerosol Air Qual. Res.

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This study focuses on the comparison between gas-and water-phase polycyclic aromatic hydrocarbons (PAHs) emitted from a single hydrogen-oxygen proton exchange membrane (PEM) fuel cell (FC) at different flowrates and temperatures. The results show that among 21 PAHs, the most and least dominant species were Nap and BeP, respectively. At 65°C, the concentrations of individual gas-and water-phase PAHs decreased with increasing flowrate, and the PAH concentrations were lower at the anode than those at the cathode. The concentrations of gas-phase Total-PAHs and Total-BaP eq were slightly lower at 65°C than those at 90°C, but an opposite trend was observed for water-phase ones. The temperature influenced water-phase PAH concentration profiles more than gas-phase ones, and the gas-and water-phase PAHs had different concentration profiles. The performance of membrane-electrode assembly (MEA) decreased with increasing flowrate or temperature. The emission factor (EF) sum (anode + cathode) for gas-or water-phase Total-PAHs increased with increasing flowrate. This tendency was also true for gas-phase Total-PAHs EFs but not for water-phase ones when raising the temperature from 65°C to 90°C. At 65°C and 52/35 sccm, the EF sums of water-phase Total-PAHs and TotalBaP eq were 2.18 ± 0.04 and 0.09 ± 0.00 µg g-MEA -1 , respectively-smaller than those of gas-phase ones (3.02 ± 0.09 and 0.12 ± 0.00 µg g-MEA -1 , respectively). More environmental concern should be directed at emitted gas-phase PAHs than at water-phase ones because the anode and cathode water effluents are usually recycled during PEMFC operations.

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A noble metal-free proton-exchange membrane fuel cell based on bio-inspired molecular catalysts

Abstract: Bio-inspired chemistry allowed for the development of the first noble metal-free polymer electrolyte membrane hydrogen fuel cell (PEMFC). The device proved operational under technologically relevant conditions.

Cited by 73 publications

References 25 publications

Hydrogen-activating models of hydrogenases

Hydrogen-activating models of hydrogenases

Effect of Operating Conditions on PAHs Emission from a Single H2-O2 PEM Fuel Cell

Gas- and Water-Phase PAHs Emitted from a Single Hydrogen-Oxygen PEM Fuel Cell

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