Matches in SemOpenAlex for { <https://semopenalex.org/work/W4386853443> ?p ?o ?g. }
Showing items 1 to 78 of
78
with 100 items per page.
- W4386853443 endingPage "2132" @default.
- W4386853443 startingPage "2132" @default.
- W4386853443 abstract "A half-century of research has positioned direct photoelectrochemical (PEC) fuel generation as a promising technology that still requires substantial development. Work on the hydrogen evolution reaction (HER) has provided a strong basis for realizing the generation of more complex fuels through the carbon dioxide reduction reaction (CO 2 RR), but multiple challenges remain. The CO 2 RR requires larger driving forces and integration of multiple catalysts in order to selectively generate multi-carbonproducts, while still presenting many unsolved issues from HER, such stabilizing photoelectrodes under operation. In this talk I will discuss advances in the integration of multiple catalytic microenvironments in a single photoelectrochemical device, and progress toward the stabilization of photoelectrodes for fuel generation. First, I will highlight the adaptation of three-terminal tandem (3TT) photovoltaic technology to photoelectrochemical applications. In our 3TT devices, a two-junction III-V solar cell device has an additional contact, enabling two unique catalyst sites operating at different voltages under the same illumination. Idealized circuit modeling shows the promise of these 3TT devices compared to traditional two-terminal, two-junction devices, particularly with respect to spectral tolerance. We have adapted the structure of 3TT photovoltaics to function as PEC devices and developed multiple catalysts for integration into the two solution contact sites. We demonstrate progress toward light-driven cascade catalysis for multi-carbon CO 2 RR products. Second, I will highlight our approaches to protective schemes for photoelectrodes: one which is independent of semiconductor chemistry, and one which is driven by that chemistry. In the first approach, transparent conductive encapsulants (TCEs) are demonstrated as photoabsorber-agnostic protective layers. Unlike many protection schemes, these TCEs can be applied to semiconductors post-processing and without substantial modification, providing facile and robust protection. We have characterized the electrochemical performance of TCEs and demonstrate their integration with multiple semiconductors for the reduction of methyl viologen as a proxy for PEC fuel formation. In the second approach, we use the knowledge generated over fifty years of photoelectrode research to develop a new material, ZnTiN 2 , which can be directly integrated with established semiconductors and which will degrade under PEC conditions. We leverage this degradation to create protective layers which may be self-healing, and demonstrate rapid refinement of ZnTiN 2 optoelectronic properties enabling integration with other semiconductors in tandem configurations." @default.
- W4386853443 created "2023-09-20" @default.
- W4386853443 creator A5071458569 @default.
- W4386853443 date "2023-08-28" @default.
- W4386853443 modified "2023-09-27" @default.
- W4386853443 title "(Invited) New Approaches to Photoelectrochemical Cascade Reactions and Protection of Photoelectrodes" @default.
- W4386853443 doi "https://doi.org/10.1149/ma2023-01372132mtgabs" @default.
- W4386853443 hasPublicationYear "2023" @default.
- W4386853443 type Work @default.
- W4386853443 citedByCount "0" @default.
- W4386853443 crossrefType "journal-article" @default.
- W4386853443 hasAuthorship W4386853443A5071458569 @default.
- W4386853443 hasConcept C108225325 @default.
- W4386853443 hasConcept C108655655 @default.
- W4386853443 hasConcept C119599485 @default.
- W4386853443 hasConcept C127413603 @default.
- W4386853443 hasConcept C147789679 @default.
- W4386853443 hasConcept C159985019 @default.
- W4386853443 hasConcept C161790260 @default.
- W4386853443 hasConcept C171250308 @default.
- W4386853443 hasConcept C17525397 @default.
- W4386853443 hasConcept C185592680 @default.
- W4386853443 hasConcept C192562407 @default.
- W4386853443 hasConcept C202189072 @default.
- W4386853443 hasConcept C20744434 @default.
- W4386853443 hasConcept C2777814067 @default.
- W4386853443 hasConcept C34146451 @default.
- W4386853443 hasConcept C35590869 @default.
- W4386853443 hasConcept C41291067 @default.
- W4386853443 hasConcept C43617362 @default.
- W4386853443 hasConcept C49040817 @default.
- W4386853443 hasConcept C542589376 @default.
- W4386853443 hasConcept C55493867 @default.
- W4386853443 hasConcept C65165184 @default.
- W4386853443 hasConcept C68801617 @default.
- W4386853443 hasConceptScore W4386853443C108225325 @default.
- W4386853443 hasConceptScore W4386853443C108655655 @default.
- W4386853443 hasConceptScore W4386853443C119599485 @default.
- W4386853443 hasConceptScore W4386853443C127413603 @default.
- W4386853443 hasConceptScore W4386853443C147789679 @default.
- W4386853443 hasConceptScore W4386853443C159985019 @default.
- W4386853443 hasConceptScore W4386853443C161790260 @default.
- W4386853443 hasConceptScore W4386853443C171250308 @default.
- W4386853443 hasConceptScore W4386853443C17525397 @default.
- W4386853443 hasConceptScore W4386853443C185592680 @default.
- W4386853443 hasConceptScore W4386853443C192562407 @default.
- W4386853443 hasConceptScore W4386853443C202189072 @default.
- W4386853443 hasConceptScore W4386853443C20744434 @default.
- W4386853443 hasConceptScore W4386853443C2777814067 @default.
- W4386853443 hasConceptScore W4386853443C34146451 @default.
- W4386853443 hasConceptScore W4386853443C35590869 @default.
- W4386853443 hasConceptScore W4386853443C41291067 @default.
- W4386853443 hasConceptScore W4386853443C43617362 @default.
- W4386853443 hasConceptScore W4386853443C49040817 @default.
- W4386853443 hasConceptScore W4386853443C542589376 @default.
- W4386853443 hasConceptScore W4386853443C55493867 @default.
- W4386853443 hasConceptScore W4386853443C65165184 @default.
- W4386853443 hasConceptScore W4386853443C68801617 @default.
- W4386853443 hasIssue "37" @default.
- W4386853443 hasLocation W43868534431 @default.
- W4386853443 hasOpenAccess W4386853443 @default.
- W4386853443 hasPrimaryLocation W43868534431 @default.
- W4386853443 hasRelatedWork W2080505345 @default.
- W4386853443 hasRelatedWork W2102063088 @default.
- W4386853443 hasRelatedWork W2180604142 @default.
- W4386853443 hasRelatedWork W2356982188 @default.
- W4386853443 hasRelatedWork W2607706776 @default.
- W4386853443 hasRelatedWork W2997726517 @default.
- W4386853443 hasRelatedWork W3134257369 @default.
- W4386853443 hasRelatedWork W3158690240 @default.
- W4386853443 hasRelatedWork W3208789231 @default.
- W4386853443 hasRelatedWork W4323537678 @default.
- W4386853443 hasVolume "MA2023-01" @default.
- W4386853443 isParatext "false" @default.
- W4386853443 isRetracted "false" @default.
- W4386853443 workType "article" @default.