Ryan O’Hayre

18.9k citations

210 papers · 14.8k indexed · 9 hit papers · h-index 58

Impact in

Renewable Energy, Sustainability and the Environment top 0.2%
- Electrocatalysts for Energy Conversion
Catalysis top 0.5%

Papers in

Renewable Energy, Sustainability and the Environment 71
- Electrocatalysts for Energy Conversion 65
Materials Chemistry 145
- Advancements in Solid Oxide Fuel Cells 99
- Electronic and Structural Properties of Oxides 57
- Catalytic Processes in Materials Science 14

Co-authors: Chuancheng Duan Jianhua Tong Svitlana Pylypenko Zongping Shao Fritz B. Prinz Neal P. Sullivan Yingke Zhou Michael Sanders
Journals: Journal of Power Sources (20 papers)Journal of The Electrochemical Society (15 papers)Solid State Ionics (11 papers)Energy & Environmental Science (8 papers)Journal of Materials Chemistry A (8 papers)
Partner nations: United States China Australia

In The Last Decade

Ryan O’Hayre

205 papers receiving 14.5k citations

Hit Papers

9 papers align trajectories log scale

Thermal-expansion offset for high-performance fuel cell cathodes 2021 · 515 citations

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if any of the following hold:

it has ≥500 total citations;
it reaches ≥1.5× the top-1% citation threshold for papers in the same subfield and year (the threshold is the minimum needed to enter the top 1%, not the average within it);
it reaches the top citation threshold in at least one of its specific research topics.

2021 Nature
2020 Nature Communications
2020 Applied Physics Reviews
2019 Nature Energy
2018 Nature
2016 CERN Document Server (European Organization for Nuclear Research)
2015 Science
2014 Energy & Environmental Science
2010 Energy & Environmental Science

Peers

Countries citing papers authored by Ryan O’Hayre

Since Specialization

Citations

This map shows the geographic impact of Ryan O’Hayre's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Ryan O’Hayre with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ryan O’Hayre more than expected).

Fields of papers citing papers by Ryan O’Hayre

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ryan O’Hayre. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Ryan O’Hayre. The network helps show where Ryan O’Hayre may publish in the future.

Co-authorship network

The 25 scholars most cited alongside Ryan O’Hayre, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Ryan O’Hayre Line = papers co-authored together Ryan O’Hayre links everyone, so they are left out of the graph.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

#	Work
1	Insights on proton‐conducting ceramic electrochemical cell fabrication Journal of the American Ceramic Society ·B S Opilah, Jake Huang, Cassandra Nichols, M. A. Shridhara, Ryan O’Hayre, Neal P. Sullivan	2025	2
2	Data-driven insights into protonic-ceramic fuel cell and electrolysis performance Journal of Materials Chemistry A ·B S Opilah, Jake Huang, Long Le, P. Ilica, M. A. Shridhara, Wenchen Song, Trevor Martin, Zehua Zhou, Zongping Shao, Ryan O’Hayre, Neal P. Sullivan	2025	0
3	Performance and stability of renewable fuel production via H2O electrolysis and H2O–CO2 co-electrolysis using proton-conducting solid oxide electrolysis cells Applied Energy ·Zehua Pan, Jingyi Wang, Liangzhu Zhu, Chuancheng Duan, Zhenjun Jiao, Zheng Zhong, Ryan O’Hayre, Neal P. Sullivan	2025	4
4	Towards improved stability in proton-conducting ceramic fuel cells Journal of Power Sources ·B S Opilah, Jake Huang, J. H. Leslie, Ryan O’Hayre, Neal P. Sullivan	2024	6
5	Materials for green hydrogen production, storage, and conversion MRS Bulletin ·Sabrina Sartori, Ryan O’Hayre, Zongping Shao	2024	1
6	Improving tubular protonic ceramic fuel cell performance by compensating Ba evaporation via a Ba-excess optimized proton conducting electrolyte synthesis strategy Journal of Physics Energy ·J. H. Leslie, In Ho Kim, B S Opilah, О. Ю. Селіверстов, Peter W. Rand, علي أحمد العنانزة, Hyun‐Sik Kim, Neal P. Sullivan, Ryan O’Hayre	2024	9
7	Tuning barium release from sacrificial powders to optimize sintering and enhance the performance of reversible large-scale tubular protonic ceramic electrochemical cells Journal of Power Sources ·J. H. Leslie, B S Opilah, Xiaorui Li, О. Ю. Селіверстов, Peter W. Rand, علي أحمد العنانزة, Neal P. Sullivan, Ryan O’Hayre	2024	4
8	Reliable operation of Cr2O3:Mg/β-Ga2O3 p–n heterojunction diodes at 600 °C Applied Physics Letters ·J.C. Bambang Kusmanto, Kingsley Egbo, Cheng‐Wei Lee, David S. Ginley, Ryan O’Hayre, Andriy Zakutayev	2024	21
9	Combinatorial impedance spectroscopy with Bayesian analysis for triple ionic-electronic conducting perovskites Journal of Materials Chemistry A ·Meagan Papac, Jake Huang, Andriy Zakutayev, Ryan O’Hayre	2023	9
10	How reliable is distribution of relaxation times (DRT) analysis? A dual regression-classification perspective on DRT estimation, interpretation, and accuracy Electrochimica Acta ·Jake Huang, Neal P. Sullivan, Andriy Zakutayev, Ryan O’Hayre	2023	65
11	Ultrathin stable Ohmic contacts for high-temperature operation of β-Ga2O3 devices Journal of Vacuum Science & Technology A Vacuum Surfaces and Films ·J.C. Bambang Kusmanto, Daniela Guarneri, David S. Ginley, Michael Sanders, Brian P. Gorman, Ryan O’Hayre, Andriy Zakutayev	2023	11
12	New Strategy for Boosting Cathodic Performance of Protonic Ceramic Fuel Cells Through Incorporating a Superior Hydronation Second Phase Energy & environment materials ·Chuan Zhou, Xixi Wang, Dongliang Liu, 朴萩谷, Jie Dai, Daqin Guan, Zhiwei Hu, Linjuan Zhang, Yu Wang, Wei Wang, Ryan O’Hayre, San Ping Jiang, Wei Zhou, Meilin Liu, Zongping Shao	2023	46
13	Tuning the Co/Fe ratio in BaCo_xFe_0.8−xZr_0.1Y_0.1O_3−δ, a promising triple ionic and electronic conducting oxide, to boost electrolysis and fuel cell performance Journal of Materials Chemistry A ·Alaín Segura Dominguez, J. H. Leslie, Michael Sanders, Steven P. Harvey, Houyan Li, Ryan O’Hayre	2022	35
14	Thermal-expansion offset for high-performance fuel cell cathodes Nature ·Yuan Zhang, Bin Chen, Daqin Guan, Meigui Xu, Ran Ran, Meng Ni, Wei Zhou, Ryan O’Hayre, Zongping Shao Hit paper breakdown →	2021	515
15	Direct evidence of boosted oxygen evolution over perovskite by enhanced lattice oxygen participation Nature Communications ·Yangli Pan, Xiaomin Xu, Yijun Zhong, Lei Ge, Yubo Chen, Jean‐Pierre Veder, Daqin Guan, Ryan O’Hayre, Mengran Li, Guoxiong Wang, Hao Wang, Wei Zhou, Zongping Shao Hit paper breakdown →	2020	573
16	Phase Identification of the Layered Perovskite Ce_xSr_2–xMnO₄ and Application for Solar Thermochemical Water Splitting Inorganic Chemistry ·I. Jambor, Francisco Gil Coury, Antoine Emery, Michael Sanders, Jianhua Tong, Anthony H. McDaniel, Christopher Wolverton, M.J. Kaufman, Ryan O’Hayre	2019	30
17	La and Al co-doped CaMnO3 perovskite oxides: From interplay of surface properties to anion exchange membrane fuel cell performance Journal of Power Sources ·Michael J. Dzara, Ivan Nemec, J. Prabhuram, Chilan Ngo, Christopher A. Cadigan, Guido Bender, Ryan M. Richards, Ryan O’Hayre, Svitlana Pylypenko	2017	26
18	Fabrication of a mesoporous Ba_0.5Sr_0.5Co_0.8Fe_0.2O_3−δ perovskite as a low-cost and efficient catalyst for oxygen reduction Dalton Transactions ·Xiangzhi Cui, Ryan O’Hayre, Svitlana Pylypenko, Linlin Zhang, Liming Zeng, Xiaohua Zhang, Zile Hua, Hangrong Chen, Jianlin Shi	2017	21
19	Materials kinetics fundamentals : principles, processes, and applications Ryan O’Hayre	2015	15
20	Micro scale electrochemistry: Application to fuel cells PhDT ·Ryan O’Hayre	2004	2

About Ryan O’Hayre

Ryan O’Hayre is a scholar working on Renewable Energy, Sustainability and the Environment, Materials Chemistry, Catalysis, Electrical and Electronic Engineering and Electronic, Optical and Magnetic Materials, having authored 210 papers that have together received 14.8k indexed citations. Recurring topics across this work include Advancements in Solid Oxide Fuel Cells (99 papers), Fuel Cells and Related Materials (90 papers), Electrocatalysts for Energy Conversion (65 papers), Electronic and Structural Properties of Oxides (57 papers), Advanced battery technologies research (25 papers), Magnetic and transport properties of perovskites and related materials (23 papers), Chemical Looping and Thermochemical Processes (17 papers) and Catalytic Processes in Materials Science (14 papers). The work is most often cited by research in Renewable Energy, Sustainability and the Environment (5.0k citations), Catalysis (1.6k citations), Materials Chemistry (10.0k citations), Electronic, Optical and Magnetic Materials (2.9k citations) and Electrical and Electronic Engineering (8.3k citations). Ryan O’Hayre has collaborated with scholars based in United States, China and Australia. Frequent co-authors include Chuancheng Duan, Jianhua Tong, Svitlana Pylypenko, Zongping Shao, Fritz B. Prinz, Neal P. Sullivan, Yingke Zhou, Michael Sanders, Sandrine Ricote and David S. Ginley. Their work appears in journals such as Journal of Power Sources, Journal of The Electrochemical Society, Solid State Ionics, Energy & Environmental Science and Journal of Materials Chemistry A.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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