Enhanced chemical durability of polymer electrolyte membrane fuel cells by crown ether grafted carbon nanotube
Source abstract
Abstract
Low chemical stability of membrane-electrode assembly (MEA) remains a major obstacle to commercialization of polymer electrolyte membrane fuel cells (PEMFCs) for fuel cell electric vehicles (FCEVs). In this study, we doubly anchored cerium-ion in the catalyst layer by forming a complex with the 15-crown-5-ether and additionally grafting to the multiwall carbon nanotube (Ce/CRE-graft-CNT) as a long-lasting radical scavenger. To confirm the effect of Ce/CRE-graft-CNT on chemical durability, the binding energy between the cerium-ion and crown ether was identified with DFT calculations. The incorporation of Ce/CRE-graft-CNT into catalyst layer decreases decay rate of open circuit voltage (OCV) by 4 times from 2.13 to 0.56 mV h−1 for 210 h operation. The performance retention of the Ce/CRE-graft-CNT (70.8 %) at 0.6 V is also higher than that of the Ce/CRE-blend-CNT (44.8 %). The results indicate that the doubly anchored Ce/CRE-graft-CNT has a more retention capability as a radical scavenger. Therefore, a tightly bounded cerium-ion/crown ether complex with CNT can provide a strategy to improve the chemical durability of MEAs.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Fuel Cells and Related Materials · Electrocatalysts for Energy Conversion · Advanced battery technologies research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (70)
Show source-provided references
1. A review of polymer electrolyte membrane fuel cells: Technology, applications, and needs on fundamental research10.1016/j.apenergy.2010.09.030 ↗
2. The role of hydrogen and fuel cells in the global energy system10.1039/C8EE01157E ↗
3. Scientific aspects of polymer electrolyte fuel cell durability and degradation10.1021/cr050182l ↗
4. Fuel cell application in the automotive industry and future perspective10.1016/j.energy.2020.118955 ↗
5. Current understanding of chemical degradation mechanisms of perfluorosulfonic acid membranes and their mitigation strategies: a review10.1039/C7SE00038C ↗
6. A review of PEM fuel cell durability: Degradation mechanisms and mitigation strategies10.1016/j.jpowsour.2008.06.006 ↗
7. Gas crossover and membrane degradation in polymer electrolyte fuel cells10.1016/j.electacta.2006.03.008 ↗
8. Membrane degradation mechanisms in PEMFCs10.1149/1.2734869 ↗
9. Nafion degradation mechanisms in proton exchange membrane fuel cell (PEMFC) system: a review10.1016/j.ijhydene.2021.06.032 ↗
10. Mechanism for degradation of nafion in PEM fuel cells from quantum mechanics calculations10.1021/ja2074642 ↗
11. A degradation study of Nafion proton exchange membrane of PEM fuel cells10.1016/j.jpowsour.2007.03.061 ↗
12. Perspective—prospects for durable hydrocarbon-based fuel cell membranes10.1149/2.0131806jes ↗
13. Stability of hydrocarbon fuel cell membranes: reaction of hydroxyl radicals with sulfonated phenylated polyphenylenes10.1021/acs.chemmater.8b05302 ↗
14. On the evolution of sulfonated polyphenylenes as proton exchange membranes for fuel cells10.1039/D1MA00511A ↗
15. Hydrocarbon-based polymer electrolyte cerium composite membranes for improved proton exchange membrane fuel cell durability10.1016/j.jpowsour.2015.07.001 ↗
16. Cerium(III) as a stabilizer of perfluorinated membranes used in fuel cells: in situ detection of early events in the ESR resonator10.1021/ma9017108 ↗
17. Scavenging of hydroxyl radicals by ceria nanoparticles: effect of particle size and concentration10.1021/acs.jpcc.6b00404 ↗
18. The degradation mitigation effect of cerium oxide in polymer electrolyte membranes in extended fuel cell durability tests10.1016/j.jpowsour.2012.10.015 ↗
19. Zr-doped ceria additives for enhanced PEM fuel cell durability and radical scavenger stability10.1039/C7TA03452K ↗
20. Effect of cerium/18-crown-6-ether coordination complex OH quencher on the properties of sulfonated poly(ether ether ketone) fuel cell electrolyte membranes10.1016/j.memsci.2014.06.044 ↗
21. Detrimental effect of Ce4+ ion on the Pt/C catalyst in polymer electrolyte membrane fuel cells10.1016/j.jpowsour.2019.227447 ↗
22. Cerium migration during PEM fuel cell accelerated stress testing10.1149/2.0181609jes ↗
23. Predicting membrane lifetime with cerium oxide in heavy duty fuel cell systems10.1149/2.0271810jes ↗
24. Accelerated stress testing of fuel cell membranes subjected to combined mechanical/chemical stressors and cerium migration10.1149/2.0241806jes ↗
25. Study of a water-soluble supramolecular complex of curcumin and β-cyclodextrin polymer with electrochemical property and potential anti-cancer activity10.1016/j.cclet.2021.12.037 ↗
26. One-pot synthesis of hydrazide-pillar[5]arene functionalized reduced graphene oxide for supercapacitor electrode10.1016/j.cej.2019.123511 ↗
27. Review: a history of cyclodextrins10.1021/cr500081p ↗
28. Crown ether functionalized conductive carbon for high-voltage Spinel LiMn1.5Ni0.5O4/graphite cell10.1021/acsaem.9b01854 ↗
29. Crown ether modulation enables over 23 % efficient formamidinium-based perovskite solar cells10.1021/jacs.0c08592 ↗
30. Crown ether-based anion exchange membranes with highly efficient dual ion conducting pathways10.1016/j.jcis.2021.07.043 ↗
31. Poly(terphenyl piperidinium) containing hydrophilic crown ether units in main chains as anion exchange membranes for alkaline fuel cells and water electrolysers10.1016/j.memsci.2022.120558 ↗
32. Projector augmented-wave method10.1103/PhysRevB.50.17953 ↗
33. Efficiency of ab-initio total energy calculations for metals and semiconductors using a plane-wave basis set10.1016/0927-0256(96)00008-0 ↗
34. Generalized gradient approximation made simple10.1103/PhysRevLett.77.3865 ↗
35. A consistent and accurate ab initio parametrization of density functional dispersion correction (DFT-D) for the 94 elements H-Pu.10.1063/1.3382344 ↗
36. Electron-energy-loss spectra and the structural stability of nickel oxide: an LSDA+U study10.1103/PhysRevB.57.1505 ↗
37. Density-functional calculations of the structure of near-surface oxygen vacancies and electron localization on CeO 2 (111)10.1103/PhysRevLett.102.026101 ↗
38. Dramatic reduction of the oxygen vacancy formation energy in ceria particles: a possible key to their remarkable reactivity at the nanoscale10.1039/c0jm01908a ↗
39. Results for aliovalent doping of CeBr3 with Ca2+10.1063/1.4861647 ↗
40. Charge transfer and formation of reduced Ce3+ upon adsorption of metal atoms at the ceria (110) surface10.1063/1.3697485 ↗
41. Intrinsic ferromagnetism in CeO2: dispelling the myth of vacancy site localization mediated superexchange
42. Modeling of CeO2, Ce2O3, and CeO2-x in the LDA+U formalism10.1103/PhysRevB.75.035109 ↗
43. Tuning LDA+U for electron localization and structure at oxygen vacancies in ceria10.1063/1.2800015 ↗
44. First- and second-sphere coordination chemistry of alkali metal crown ether complexes10.1016/S0010-8545(01)00317-4 ↗
45. Computational study of the cerium (III) ion in aqueous environment
46. VESTA: a three-dimensional visualization system for electronic and structural analysis10.1107/S0021889808012016 ↗
47. Raman and IR spectroscopy of chemically processed single-walled carbon nanotubes10.1021/ja052951o ↗
48. Infrared spectral evidence for the etching of carbon nanotubes: ozone oxidation at 298 K10.1021/ja994094s ↗
49. One step synthesis of fluorescent carbon dots through pyrolysis of N-hydroxysuccinimide10.1039/C4TC02382J ↗
50. Properties of gelatin films cross–linked by N-hydroxysuccinimide–activated furandicarboxylic acid (NHS-FDCA)10.1007/s00289-015-1563-5 ↗
51. DFT-calculated IR spectrum amide I, II, and III band contributions of n-methylacetamide fine components10.1021/acsomega.9b04421 ↗
52. Synthesis and properties of ortho-linked aromatic poly(ester-amide)s and poly(ester-imide)s bearing 2,3-bis(benzoyloxy)naphthalene units10.1007/s10965-007-9118-6 ↗
53. Chemistry of the calcination of 15-crown-5 and 18-crown-6 ethers occluded in faujasite polytype zeolites10.1039/ft9969203281 ↗
54. Thermal degradation behaviour of aromatic poly(ester-amide) with pendant phosphorus groups investigated by pyrolysis-GC/MS10.1016/j.polymdegradstab.2005.04.026 ↗
55. Thermal degradation and ageing behaviour of novel thermoplastic elastomeric nylon-6/acrylate rubber reactive blends10.1016/S0141-3910(98)00044-5 ↗
56. Synthesis of poly(arylene ether ketone)s bearing skeletal crown ether units for cation exchange membranes10.1002/pola.27752 ↗
57. Chemical stability enhancement of crown ether grafted sulfonated poly(arylene ether ketone) fuel cell membrane by cerium ion fixation10.1002/pola.29271 ↗
58. Unveiling bonding states and roles of edges in nitrogen-doped graphene nanoribbon by X-ray photoelectron spectroscopy10.1016/j.carbon.2021.08.085 ↗
59. Nanoscale morphological investigation into surface coverage of platinum catalysts by ionomers on vertically aligned carbon nanotube fuel cell catalyst layers10.1016/j.jpowsour.2020.227953 ↗
60. 3D model of an order-structured cathode catalyst layer with vertically aligned carbon nanotubes for pem fuel cells under the water flooding condition10.1021/acssuschemeng.9b06622 ↗
61. Crown ether bridged anion exchange membranes with robust alkaline durability10.1016/j.memsci.2019.02.038 ↗
62. Effects of fuel cell operating conditions on proton exchange membrane durability at open-circuit voltage10.1002/fuce.201900173 ↗
63. Effect of the CeO2 nanoparticles in microporous layers on the durability of proton exchange membrane fuel cells10.1016/j.ijhydene.2021.08.045 ↗
64. Sandwich-like Nafion composite membrane with ultrathin ceria barriers for durable fuel cells10.1002/er.7582 ↗
65. Investigation of in-situ catalytic combustion in polymer-electrolyte-membrane fuel cell during combined chemical and mechanical stress test10.1016/j.jpowsour.2022.231803 ↗
66. Ce(III)-based coordination-complex-based efficient radical scavenger for exceptional durability enhancement of polymer application in proton-exchange membrane fuel cells and organic photovoltaics10.1002/aesr.202200011 ↗
67. Novel bifunctional fillers (ATP/P–CNOs) for sulfonated poly(aryl ether sulfone) matrix for improved power output and durability of H2/O2 fuel cell at low humidity10.1016/j.memsci.2022.120774 ↗
68. Double-layer expanded polytetrafluoroethylene reinforced membranes with cerium oxide radical scavengers for highly stable proton exchange membrane fuel cells10.1021/acsaem.2c01263 ↗
69. Degradation-mitigating composite membrane that exceeds a 1 W cm–2 power density of a polymer electrolyte membrane fuel cell operating under dry conditions10.1021/acssuschemeng.0c07846 ↗
70. Measurement of catalyst layer electrolyte resistance in PEFCs using electrochemical impedance spectroscopy10.1149/1.1888367 ↗