Show simple item record

dc.contributor.authorZhao, Yang
dc.contributor.authorTaylor, Erin E.
dc.contributor.authorHu, Xudong
dc.contributor.authorEvanko, Brian
dc.contributor.authorZeng, Xiaojun
dc.contributor.authorWang, Hengbin
dc.contributor.authorOhnishi, Ryohji
dc.contributor.authorTsukazaki, Takaki
dc.contributor.authorLi, Jian-Feng
dc.contributor.authorStadie, Nicholas P.
dc.contributor.authorYoo, Seung Joon
dc.contributor.authorStucky, Galen D.
dc.contributor.authorBoettcher, Shannon W.
dc.identifier.citationZhao, Y., Taylor, E.E., Hu, X., Evanko, B., Zeng, X., Wang, H., Ohnishi, R., Tsukazaki, T., Li, J.F., Stadie, N.P. and Yoo, S.J., 2021. What Structural Features Make Porous Carbons Work for Redox-Enhanced Electrochemical Capacitors? A Fundamental Investigation. ACS Energy Letters, 6(3), pp.854-861.en_US
dc.description.abstractThe addition of redox-active molecules into electrochemical-capacitor electrolytes provides increased specific energy density. Here we illustrate the underlying operational mechanisms and design principles for carbons with hierarchical pore sizes in the micropore (0.6–2 nm) to mesopore (2–3 nm, 5–30 nm) range as electrode materials in redox-enhanced electrochemical capacitors. When using iodide as a model redox additive, we discover that the redox capacity is correlated to the pore volume of the carbon electrodes when void space is included. The fastest rates are typically observed with pore-sizes >1 nm, while slow self-discharge requires pores <1 nm. When used without an ion-selective-membrane separator, the delivered capacity correlated with the quantity of redox species held within the carbon. A commercial microporous carbon, MSC30, with substantial hierarchy in pore size, including small <0.8 nm pores and larger 1.1–3 nm pores, showed the best overall performance, illustrating key design principles.en_US
dc.publisherAmerican Chemical Societyen_US
dc.titleWhat Structural Features Make Porous Carbons Work for Redox-Enhanced Electrochemical Capacitors? A Fundamental Investigationen_US
mus.citation.journaltitleACS Energy Lettersen_US
mus.relation.collegeCollege of Letters & Scienceen_US
mus.relation.departmentChemistry & Biochemistry.en_US
mus.relation.universityMontana State University - Bozemanen_US

Files in this item


This item appears in the following Collection(s)

Show simple item record

MSU uses DSpace software, copyright © 2002-2017  Duraspace. For library collections that are not accessible, we are committed to providing reasonable accommodations and timely access to users with disabilities. For assistance, please submit an accessibility request for library material.