Accelerating Bubble Detachment in Porous Transport Layers with Patterned Through-Pores
Source abstract
Abstract
Mass transport losses ultimately suppress gas evolving electrochemical energy conversion technologies, such as fuel cells and carbon dioxide electrolyzers, from reaching the high current densities needed to realize commercial success. In this work, we reach ultrahigh current densities up to 9 A/cm2 in a polymer electrolyte membrane (PEM) water electrolyzer with the application of custom porous transport layers (PTLs) with patterned through-pores (PTPs), and we reduce the mass transport overpotentials of the electrolyzer by up to 76.7 %. This dramatic performance improvement stems from the 43.5 % reduction in gas saturation at the catalyst layer-PTL interface region. Moreover, the presence of PTPs leads to more rapid bubble coalescence and subsequently more frequent bubble snap-off (∼3.3 Hz), thereby enhancing the rate of gas removal and liquid water reactant delivery to the reaction sites. This work is highly informative for designing PTLs for optimal gas removal for a wide range of gas evolving electrochemical energy conversion technologies.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Hybrid Renewable Energy Systems · Advanced battery technologies research · Electrocatalysts for Energy Conversion
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Thermofluids for Energy and Advanced Material Laboratory, Department of Mechanical and Industrial Engineering, Institute for Sustainable Energy, Faculty of Applied Science and Engineering, University of Toronto, Toronto, ON M5S 3G8 Canada
Physical Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland 20874, United States
Funding
University of Toronto · National Institute of Standards and Technology · Canada Research Chairs · Alexander Graham Bell Association for the Deaf and Hard of Hearing · Natural Sciences and Engineering Research Council of Canada
References (60)
Show source-provided references
1. 10.1109/JPROC.2011.215675010.1109/JPROC.2011.2156750 ↗
2. 10.1016/j.ijhydene.2013.01.15110.1016/j.ijhydene.2013.01.151 ↗
3. Bessarabov D. · 201610.1201/b19096 ↗
4. 10.1149/2.1441704jes10.1149/2.1441704jes ↗
5. 10.1016/j.ijhydene.2020.03.10910.1016/j.ijhydene.2020.03.109 ↗
6. 10.1016/j.ijhydene.2017.10.04510.1016/j.ijhydene.2017.10.045 ↗
7. 10.1016/j.ijhydene.2019.02.13910.1016/j.ijhydene.2019.02.139 ↗
8. 10.1016/j.jpowsour.2015.12.07110.1016/j.jpowsour.2015.12.071 ↗
9. 10.1016/j.elecom.2020.10670410.1016/j.elecom.2020.106704 ↗
10. 10.1016/j.ijhydene.2018.11.17910.1016/j.ijhydene.2018.11.179 ↗
11. 10.1021/acsaem.0c0020810.1021/acsaem.0c00208 ↗
12. 10.1021/acsaem.8b0177710.1021/acsaem.8b01777 ↗
13. 10.1021/acsaem.0c0020110.1021/acsaem.0c00201 ↗
14. 10.1021/acsaem.0c0028910.1021/acsaem.0c00289 ↗
15. 10.1149/06917.1141ecst10.1149/06917.1141ecst ↗
16. 10.1016/j.ijhydene.2014.01.02610.1016/j.ijhydene.2014.01.026 ↗
17. 10.1039/C7EE01240C10.1039/C7EE01240C ↗
18. 10.1016/j.egypro.2018.09.03510.1016/j.egypro.2018.09.035 ↗
19. 10.3390/ma1108136810.3390/ma11081368 ↗
20. 10.1016/j.jpowsour.2020.22839010.1016/j.jpowsour.2020.228390 ↗
21. 10.1016/j.jpowsour.2019.05.02710.1016/j.jpowsour.2019.05.027 ↗
22. 10.1016/j.ijhydene.2019.12.20410.1016/j.ijhydene.2019.12.204 ↗
23. 10.1016/j.ijhydene.2020.01.10010.1016/j.ijhydene.2020.01.100 ↗
24. 10.1149/2.0031815jes10.1149/2.0031815jes ↗
25. 10.1149/1945-7111/ab7f8710.1149/1945-7111/ab7f87 ↗
26. 10.1016/j.ijhydene.2012.01.09510.1016/j.ijhydene.2012.01.095 ↗
27. 10.1149/2.13517109jes10.1149/2.13517109jes ↗
28. 10.1149/2.1241908jes10.1149/2.1241908jes ↗
29. 10.1039/D0EE00673D10.1039/D0EE00673D ↗
30. 10.1016/j.ijhydene.2008.11.05610.1016/j.ijhydene.2008.11.056 ↗
31. 10.1016/j.jpowsour.2016.01.10010.1016/j.jpowsour.2016.01.100 ↗
32. 10.1016/j.electacta.2016.04.16410.1016/j.electacta.2016.04.164 ↗
33. 10.1016/j.electacta.2019.05.09610.1016/j.electacta.2019.05.096 ↗
34. 10.1039/C6EE02368A10.1039/C6EE02368A ↗
35. 10.1002/aenm.20207000910.1002/aenm.202070009 ↗
36. 10.1149/1.363558110.1149/1.3635581 ↗
37. 10.1103/PhysRevApplied.11.05402910.1103/PhysRevApplied.11.054029 ↗
38. 10.1149/2.0161913jes10.1149/2.0161913jes ↗
39. 10.1149/09208.0787ecst10.1149/09208.0787ecst ↗
40. 10.1149/1945-7111/abb17310.1149/1945-7111/abb173 ↗
41. 10.1016/j.jpowsour.2014.04.12010.1016/j.jpowsour.2014.04.120 ↗
42. 10.1016/j.ijhydene.2010.06.10310.1016/j.ijhydene.2010.06.103 ↗
43. 10.1016/j.enconman.2020.11279710.1016/j.enconman.2020.112797 ↗
44. 10.1149/08513.1593ecst10.1149/08513.1593ecst ↗
45. 10.1016/j.ijhydene.2011.01.12910.1016/j.ijhydene.2011.01.129 ↗
46. 10.1016/j.ijhydene.2010.03.10210.1016/j.ijhydene.2010.03.102 ↗
47. 10.1016/j.ijhydene.2017.08.18310.1016/j.ijhydene.2017.08.183 ↗
48. Hoeh, M. In In In-Operando Synchrotron X-Ray and Neutron Radiography Studies of Polymer Electrolyte Membrane Water Electrolyzers; 228th ECS Meeting (October 11–15, 2015); Ecs: 2015;10.1149/MA2015-02/37/1514 ↗
49. 10.1016/j.electacta.2018.04.14410.1016/j.electacta.2018.04.144 ↗
50. 10.1016/j.jpowsour.2019.22731210.1016/j.jpowsour.2019.227312 ↗
51. 10.1016/j.electacta.2018.05.06610.1016/j.electacta.2018.05.066 ↗
52. 10.1016/j.jpowsour.2018.04.04410.1016/j.jpowsour.2018.04.044 ↗
53. 10.1149/2.0641607jes10.1149/2.0641607jes ↗
54. 10.1016/j.xcrp.2020.10014710.1016/j.xcrp.2020.100147 ↗
55. 10.1149/1.213004410.1149/1.2130044 ↗
56. 10.1063/1.476711810.1063/1.4767118 ↗
57. 10.1016/j.nima.2007.08.08710.1016/j.nima.2007.08.087 ↗
58. 10.1016/j.mset.2019.03.00210.1016/j.mset.2019.03.002 ↗
59. 10.1149/1945-7111/ab68c810.1149/1945-7111/ab68c8 ↗
60. 10.1016/j.jpowsour.2019.22691010.1016/j.jpowsour.2019.226910 ↗