Tracking the Evolution of Single-Atom Catalysts for the CO2 Electrocatalytic Reduction Using Operando X-ray Absorption Spectroscopy and Machine Learning

A Martini, D Hursán, J Timoshenko… - Journal of the …, 2023 - ACS Publications
Transition metal-nitrogen-doped carbons (TMNCs) are a promising class of catalysts for the
CO2 electrochemical reduction reaction. In particular, high CO2-to-CO conversion activities …

Reversible Structural Evolution of Metal‐Nitrogen‐Doped Carbon Catalysts During CO2 Electroreduction: An Operando X‐ray Absorption Spectroscopy Study

D Hursán, J Timoshenko, E Ortega, HS Jeon… - Advanced …, 2024 - Wiley Online Library
Abstract Electrochemical CO2 reduction (CO2RR) is a rising technology, aiming to reduce
the energy sector dependence on fossil fuels and to produce carbon‐neutral raw materials …

Synergy between Intermetallic Pt Alloy and Porous Co–N4 Carbon Nanofibers Enables Durable Fuel Cells with Low Mass Transport Resistance

J Lai, S Chen, X Liu, X Yan, Z Qin, L Xie, Z Lin… - ACS …, 2023 - ACS Publications
The complex chemical environments and strictly limited mass transport in the catalytic layer
(CL) of proton exchange membrane fuel cells (PEMFCs) seriously hinder their performance …

Metal porphyrins as single site catalyst models explored by electrochemical scanning tunneling microscopy: a new perspective in electrocatalysis

A Facchin, C Durante - Advanced Sustainable Systems, 2022 - Wiley Online Library
Abstract M–N–C materials featuring M–Nx single site catalysts, where for example M= Co,
Mg, or Fe coordinating x atoms of nitrogen, have been intensely investigated as promising …

Exploring local oxygen transport in low-Pt loading proton exchange membrane fuel cells: A comprehensive review

F Sun, Q Di, M Chen, H Liu, H Wang - eTransportation, 2024 - Elsevier
In light of the widespread commercialization of proton exchange membrane fuel cells
(PEMFCs) on a global scale, the expeditious resolution of challenges pertaining to cost and …

Low temperature synthesis of new highly graphitized N-doped carbon for Pt fuel cell supports, satisfying DOE 2025 durability standards for both catalyst and support

HY Lee, HY Ted, CH Shin, A Fortunelli, SG Ji… - Applied Catalysis B …, 2023 - Elsevier
For polymer electrolyte membrane fuel cells (PEMFCs), the state-of-the-art electrocatalysts
are based on carbon-supported Pt group metals. However, current carbon supports suffer …

Structure–activity relationship for the catalytic hydrogenation of nitrobenzene by single platinum atoms supported on nitrogen-doped carbon

C Wang, B Ye, R Zhou, Y Jiang… - ACS Applied Nano …, 2022 - ACS Publications
The preparation of N-doped carbon with well-defined and well-controlled doping of N
species is a challenging work, especially with supported Pt atoms. Here, four kinds of N …

Interfacial distribution of nafion ionomer thin films on nitrogen-modified carbon surfaces

W Yoshimune, N Kikkawa, H Yoneyama… - … Applied Materials & …, 2022 - ACS Publications
Chemically modified carbon supports for the cathode catalyst layers of polymer electrolyte
fuel cells (PEFCs) show considerable promise for boosting the oxygen reduction reaction …

Understanding the performance increase of catalysts supported on N-functionalized carbon in PEMFC catalyst layers

S Ott, F Du, ML Luna, TA Dao, BR Cuenya… - Journal of The …, 2022 - iopscience.iop.org
Applying nitrogen-modified carbon support in PEMFCs has been attracting arising interest
due to the resulting performance enhancement. In the present study, we attempt to uncover …

Interfacial S-functionalized high-performance L12Pt3Fe/Fe-SNC for proton exchange membrane fuel cells

Z Zhao, P Guo, M Ma, W Ye, P Shao, J Liu, B Xu… - International Journal of …, 2024 - Elsevier
Alloying platinum with other 3d transition metals (M) in an organized manner is a proven
method to enhance the activity and lifespan of Pt catalysts utilized in proton exchange …