[HTML][HTML] Mapping transition metal-MN4 macrocyclic complex catalysts performance for the critical reactivity descriptors

JH Zagal, S Specchia, P Atanassov - Current Opinion in Electrochemistry, 2021 - Elsevier
There has been a significant progress toward the development of highly active and stable
platinum group metal-free (PGM-free) electrocatalysts for the oxygen reduction reaction …

Exchange current density as an effective descriptor of poisoning of active sites in platinum group metal-free electrocatalysts for oxygen reduction reaction

VCA Ficca, C Santoro, E Placidi, F Arciprete… - ACS …, 2023 - ACS Publications
The oxygen reduction reaction (ORR) is of primary importance for the direct and clean
conversion of energy in fuel cells, necessarily requiring an electrocatalyst to be exploited. At …

Accurate evaluation of active-site density (SD) and turnover frequency (TOF) of PGM-free metal–nitrogen-doped carbon (MNC) electrocatalysts using CO cryo …

F Luo, CH Choi, MJM Primbs, W Ju, S Li… - ACS …, 2019 - ACS Publications
The number of catalytically active sites (site density, SD) and the catalytic turnover frequency
(TOF) are critical for meaningful comparisons between catalytic materials and their rational …

Kinetics of the Oxygen Evolution Reaction (OER) on Amorphous and Crystalline Iridium Oxide Surfaces in Acidic Medium

D Choudhury, R Das, R Maurya, H Kumawat… - Langmuir, 2023 - ACS Publications
Amorphous and crystalline IrO2 catalysts are synthesized by the Adams method and
characterized with X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) …

Influence of nitrogen doping into carbon on the activation barrier of ORR in alkaline medium: An investigation based on eyring analysis

R Das, D Choudhury, R Maurya, S Sharma, M Neergat - Langmuir, 2023 - ACS Publications
The oxygen reduction reaction (ORR) is investigated on metal-free carbon (Vulcan XC-72)
and nitrogen-doped (∼≤ 1%) carbon (N/C-900) in 0.1 M KOH. The product distribution (O2 …

Relationship between the electron-transfer coefficients of the oxygen reduction reaction estimated from the Gibbs free energy of activation and the Butler–Volmer …

R Maurya, R Das, AK Tripathi, M Neergat - Physical Chemistry …, 2023 - pubs.rsc.org
The rate of electron-transfer reactions, irrespective of whether electrochemical or
electrocatalytic, is universally explained on the basis of Butler–Volmer (B–V) theory. The …

Resolving charge-transfer and mass-transfer processes of VO 2+/VO 2+ redox species across the electrode/electrolyte interface using electrochemical impedance …

P Leuaa, D Priyadarshani, D Choudhury, R Maurya… - RSC …, 2020 - pubs.rsc.org
Electrochemical impedance spectroscopy is used to investigate the charge-transfer and
mass-transfer processes of VO2+/VO2+ (V4+/V5+) redox species across the carbon …

Influence of nitrogen-doping in carbon on equivalent distributed resistance and capacitance–Implications to electrocatalysis of oxygen reduction reaction

B Bera, T Kar, A Chakraborty, M Neergat - Journal of Electroanalytical …, 2017 - Elsevier
Carbon-black is heat-treated with nitrogen-containing precursor (ammonia or melamine) to
yield N-doped carbon. The nitrogen content in the sample depends on the type of the …

Kinetics of Hydrogen Evolution Reactions in Acidic Media on Pt, Pd, and MoS2

D Choudhury, R Das, AK Tripathi, D Priyadarshani… - Langmuir, 2022 - ACS Publications
Hydrogen evolution reaction (HER) are investigated on Pt, Pd, and MoS2 in a 0.5 M H2SO4
electrolyte in a rotating disk electrode (RDE) configuration in the temperature range of 285 …

P-doped CNTs encapsulated nickel hybrids with flower-like structure as efficient catalysts for hydrogen evolution reaction

S Jing, D Wang, S Yin, J Lu, PK Shen, P Tsiakaras - Electrochimica acta, 2019 - Elsevier
Electrochemical water splitting attracted an increasing attention as a promising approach to
produce high-purity hydrogen. Both the design and synthesis of low-cost and high …