Çiğdem Toparlı

E-mail

ctoparli@metu.edu.tr

Department

Department of Metallurgical and Materials Engineering

ORCID

0000-0002-4374-4910

Scopus Author ID

55744448200

Web of Science Researcher ID

ABH-8729-2020

Activation effects on rapeseed stalk-derived biochar for supercapacitor electrodes Yılmaz, Anıl; Coşkuner, Ali Burçay; PARLAK, KEMAL; Geyikçi, Uygar; Toparlı, Çiğdem; Özbek, Nil; Açma, Hanzade; Yaman, Serdar (2026-11-30) Agricultural residues are promising sustainable precursors for functional carbon materials in energy storage applications. In this study, activated biochars were prepared from rapeseed stalk (RS) using KOH, LiCl, and ZnCl2...
A-Site Engineered High Entropy Perovskite Oxides for Rechargeable Zinc-Air Batteries Ozgur, Cagla; Erdil, Tuncay; Geyikci, Uygar; Cihan, Huseyin Inan; Yıldız, İlker; Toparlı, Çiğdem (2026-06-01) 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...
Tuning the lattice strain through manipulating crystal structure of high entropy oxides enhances electrocatalytic performance Coskuner, Ali Burcay; Erdil, Tuncay; Özgür, Çağla; Geyikci, Uygar; Toparlı, Çiğdem (2025-06-01) This study investigated the effects of crystal structure on the electrocatalytic OER and ORR performance. High-entropy oxides were synthesized, yielding rock-salt (HRS) and spinel cubic (HSP) crystal structures. Overpotent...
Earth-Abundant Divalent Cation High-Entropy Spinel Ferrites as Bifunctional Electrocatalysts for Oxygen Evolution and Reduction Reactions Erdil, Tuncay; Özgür, Çağla; Geyikci, Uygar; LÖKÇÜ, ERSU; Toparlı, Çiğdem (2024-09-23) 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. Howe...
B‐Site Doping Boosts the OER and ORR Performance of Double Perovskite Oxide as Air Cathode for Zinc‐Air Batteries Ozgur, Cagla; Erdil, Tuncay; Geyikci, Uygar; Yildiz, Ilker; Lokcu, Ersu; Toparlı, Çiğdem (2024-09-01)
The Effect of B-site Doping on NdBaCoaFe2-aO6 (a= 1.8, 1.6, 1.4, 1.2) for Enhanced OER/ORR Activity and Rechargeable Zinc- Air Battery Performance Özgür, Çağla; Toparlı, Çiğdem (2023-12-30)
NANO POROUS HIGH ENTROPY OXIDE ELECTROCATALYST FOR HYDROGEN PRODUCTION Özgür, Çağla; Toparlı, Çiğdem; Erdil, Tuncay; LÖKÇÜ, ERSU (2023-12-01)
B-Site Effect on High-Entropy Perovskite Oxide as a Bifunctional Electrocatalyst for Rechargeable Zinc–Air Batteries Erdil, Tuncay; Toparlı, Çiğdem (2023-11-01) High-entropy perovskite oxides (HEPOs) combine the advantageous characteristics of both high-entropy oxides and perovskite oxides such as robust long-term crystal and electronic structure stability and finely adjusta...
SYNTHESIS AND CHARACTERIZATION OF HIGH ENTROPY OXY-HYDROXIDES FOR ELECTROCATALYTIC OXYGEN EVOLUTION AND REDUCTION REACTION Toparlı, Çiğdem (2023-08-21) The need for energy is rising quickly, and the usage of fossil fuels is contributing to the greenhouse effect and environmental pollution, both of which are raising public concerns. The development of novel electrochemical...
The elemental cocktail effect of high-entropy spinel oxides on the electrocatalytic performance of zinc-air battery cathode Erdil, Tuncay; Toparlı, Çiğdem (2023-07-25) Metal-air batteries are heavily dependent on oxygen electrochemical reactions. The oxygen evolution reaction (OER) and the oxygen reduction reaction (ORR) are the key reactions to be catalyzed for improving the energy solu...

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