Uygar Geyikci

Activation effects on rapeseed stalk-derived biochar for supercapacitor electrodes

Anıl Yılmaz, Ali Burcay Coskuner, Kemal Parlak, Uygar Geyikci et autres

ÇİNKO-HAVA PİLLERİ İÇİN YÜKSEK ENTROPİLİ STOKİYOMETRİK OLMAYAN SPİNEL OKSİT KATALİZÖRLERİN MÜHENDİSLİĞİ

Uygar Geyikci

The escalating global energy demand necessitates reliable, grid-scale storage solutions to support intermittent renewable energy sources. Rechargeable zinc-air batteries (ZABs) have emerged as highly compelling candidates due to their economic viability, safety, and exceptional theoretical energy density. However, the commercialization of ZABs …

A-Site Engineered High Entropy Perovskite Oxides for Rechargeable Zinc-Air Batteries

Cagla Ozgur, Tuncay Erdil, Uygar Geyikci, Huseyin Inan Cihan et autres

High Resolution Image Download MS PowerPoint Slide High-entropy perovskite oxides (HEPOs) combine the compositional flexibility of perovskite oxides with the structural stability of high-entropy oxides, which enables tunable physicochemical properties and robust electronic structures. These attributes make HEPOs particularly attractive as bifunctional …

tr (code pays fourni par la source)

Correction to “Pyrite High-Entropy Sulfides for Bifunctional Oxygen Electrocatalysis and High-Performance Zinc-Air Batteries”

Tuncay Erdil, Nazlican Uysal, Zeynep Ilgın Yüceer, Cem Aşcı et autres

[This corrects the article DOI: 10.1021/acsomega.5c12740.].

tr, us (code pays fourni par la source)

Hierarchical porous biochar from Eastern spruce as a supercapacitor electrode material

Anıl Yılmaz, Ali Burcay Coskuner, Yaren Bumin, Uygar Geyikci et autres

tr (code pays fourni par la source)

Pyrite High-Entropy Sulfides for Bifunctional Oxygen Electrocatalysis and High-Performance Zinc-Air Batteries

Tuncay Erdil, Nazlican Uysal, Zeynep Ilgın Yüceer, Cagla Ozgur et autres

High Resolution Image Download MS PowerPoint Slide Zinc-air batteries are limited by sluggish, reversible oxygen electrocatalysis at the air cathode. High-entropy sulfides (HESs) are introduced as bifunctional oxygen catalysts, leveraging multication disorder to create robust, tunable active sites. Three pyrite-type, single-phase compositions: …

tr (code pays fourni par la source)

Optimizing cation synergy in high entropy oxides for superior bifunctional oxygen electrocatalysis

Uygar Geyikci, Tuncay Erdil, Cagla Ozgur, Çiğdem Toparlı

tr (code pays fourni par la source)

Erratum to “Tuning the lattice strain through manipulating crystal structure of high entropy oxides enhances electrocatalytic performance” [Materials Research Bulletin 186 (2025) 113333]

Ali Burcay Coskuner, Tuncay Erdil, Cagla Ozgur, Uygar Geyikci et autres

tr (code pays fourni par la source)

Tuning the lattice strain through manipulating crystal structure of high entropy oxides enhances electrocatalytic performance

Ali Burcay Coskuner, Tuncay Erdil, Cagla Ozgur, Uygar Geyikci et autres

tr (code pays fourni par la source)

1000-Hour Durable Rechargeable Aqueous Zn-Air Battery with Porous High Entropy Spinel Oxide Oxygen Electrocatalyst

Cagla Ozgur, Tuncay Erdil, Uygar Geyikci, Ersu Lökçü et autres

tr (code pays fourni par la source)

Earth-Abundant Divalent Cation High-Entropy Spinel Ferrites as Bifunctional Electrocatalysts for Oxygen Evolution and Reduction Reactions

Tuncay Erdil, Cagla Ozgur, Uygar Geyikci, Ersu Lökçü et autres

High Resolution Image Download MS PowerPoint Slide High-entropy spinel ferrites (HESFs) offer long-term stability and activity in oxygen electrochemical reactions due to entropy stabilization and synergistic effects of multiple elements within their crystal structure. However, conventional HESFs often rely on transition metals …

tr (code pays fourni par la source)

B‐Site Doping Boosts the OER and ORR Performance of Double Perovskite Oxide as Air Cathode for Zinc‐Air Batteries

Cagla Ozgur, Tuncay Erdil, Uygar Geyikci, İlker Yıldız et autres

Abstract Double perovskite oxides are key players as oxygen evolution and oxygen reduction catalysts in alkaline media due to their tailorable electronic structures by doping. In this study, we synthesized B‐site doped NdBaCoaFe2‐aO5+δ (a=1.0, 1.4, 1.6, 1.8) electrocatalysts, systematically probed their bifunctionality …

tr (code pays fourni par la source)