Second sphere effects on oxygen reduction and peroxide activation by mononuclear iron porphyrins and related systems

S Bhunia, A Ghatak, A Dey - Chemical Reviews, 2022 - ACS Publications
Activation and reduction of O2 and H2O2 by synthetic and biosynthetic iron porphyrin
models have proved to be a versatile platform for evaluating second-sphere effects deemed …

Bioinspired N4-metallomacrocycles for electrocatalytic oxygen reduction reaction

Y Li, N Wang, H Lei, X Li, H Zheng, H Wang… - Coordination Chemistry …, 2021 - Elsevier
Oxygen reduction reaction (ORR) is an important process involved in natural and artificial
energy conversion schemes. As inspired by cytochrome c oxidases (CcOs), which are …

Steric Effects on the Oxygen Reduction Reaction with Cobalt Porphyrin Atropisomers

T Liu, H Qin, Y Xu, X Peng, W Zhang, R Cao - ACS Catalysis, 2024 - ACS Publications
The steric effects on the oxygen reduction reaction (ORR) have been rarely studied because
O2 is small in size and ORR catalysts with the only difference in steric hindrance are difficult …

Amine Groups in the Second Sphere of Iron Porphyrins Allow for Higher and Selective 4e/4H+ Oxygen Reduction Rates at Lower Overpotentials

S Bhunia, A Ghatak, A Rana, A Dey - Journal of the American …, 2023 - ACS Publications
Iron porphyrins with one or four tertiary amine groups in their second sphere are used to
investigate the electrochemical O2 reduction reaction (ORR) in organic (homogeneous) and …

Oriented Electrostatic Effects on O2 and CO2 Reduction by a Polycationic Iron Porphyrin

DJ Martin, JM Mayer - Journal of the American Chemical Society, 2021 - ACS Publications
Next-generation energy technologies require improved methods for rapid and efficient
chemical-to-electrical energy transformations. One new approach has been to include …

Electrostatic Secondary‐Sphere Interactions That Facilitate Rapid and Selective Electrocatalytic CO2 Reduction in a Fe‐Porphyrin‐Based Metal–Organic Framework

R Shimoni, Z Shi, S Binyamin, Y Yang… - Angewandte Chemie …, 2022 - Wiley Online Library
Metal–organic frameworks (MOFs) are promising platforms for heterogeneous tethering of
molecular CO2 reduction electrocatalysts. Yet, to further understand electrocatalytic MOF …

Breaking a Molecular Scaling Relationship Using an Iron–Iron Fused Porphyrin Electrocatalyst for Oxygen Reduction

D Nishiori, JP Menzel, N Armada… - Journal of the …, 2024 - ACS Publications
The design of efficient electrocatalysts is limited by scaling relationships governing trade-offs
between thermodynamic and kinetic performance metrics. This ″iron law ″of …

Oriented internal electrostatic fields: an emerging design element in coordination chemistry and catalysis

AB Weberg, RP Murphy, NC Tomson - Chemical Science, 2022 - pubs.rsc.org
The power of oriented electrostatic fields (ESFs) to influence chemical bonding and reactivity
is a phenomenon of rapidly growing interest. The presence of strong ESFs has recently …

Improving electrocatalytic oxygen reduction activity and selectivity with a cobalt corrole appended with multiple positively charged proton relay sites

J Han, N Wang, X Li, W Zhang… - The Journal of Physical …, 2021 - ACS Publications
The electrocatalytic four-electron (4e–) oxygen reduction reaction (ORR) is important in new
energy conversion technologies. Improving the activity and 4e–selectivity of the ORR is …

Fast Catalysis at Low Overpotential: Designing Efficient Dicationic Re(bpy2+)(CO)3I Electrocatalysts for CO2 Reduction

L Rotundo, S Ahmad, C Cappuccino… - Journal of the …, 2024 - ACS Publications
We report a series of isomeric, dicationic Re (bpy2+)(CO) 3I complexes with bpy (2, 2′-
bipyridine) modified by two phenyl-CH2-(NMe3)+ pendants with cations located at variable …