Development of catalytic systems for reduction of electrochemically inert inorganic molecules: carbon dioxide and nitrogen

Current Opinion in Electrochemistry, Год журнала: 2025, Номер unknown, С. 101657 - 101657

Опубликована: Янв. 1, 2025

Язык: Английский

---

Cambered Bipyridyl Ligand with Extended Aryl System Enables Electrochemical Reduction of Carbon Dioxide and Bicarbonate by Mn(bpy)(CO)₃Br-type Catalyst Immobilized on Carbon Nanotubes

Journal of the American Chemical Society, Год журнала: 2025, Номер 147(9), С. 7411 - 7422

Опубликована: Фев. 24, 2025

Heterogeneous materials containing molecular catalytic sites show promise for electrocatalytic reduction of CO2 to energy-enriched carbon products. Interactions between the catalyst and heterogeneous support increasingly are recognized as important in governing product selectivity rate. Recent work on Mn(R-bpy)(CO)3Br type catalysts immobilized multiwalled nanotubes (MWCNT) demonstrated control behavior with steric modification catalyst. Phenyl groups installed 4,4' positions bipyridine ligand (ph-bpy) maximized performance through π-π interactions MWCNT support. Herein we report outcome extending π system Mn(nap-bpy)(CO)3Br (nap-bpy = 4,4'-di(naphthalen-1-yl)-2,2'-bipyridine) Mn(pyr-bpy)(CO)3Br (pyr-bpy 4,4'-di(pyren-1-yl)-2,2'-bipyridine) MWCNT. We demonstrate exceptional electrocatalysis Mn(nap-bpy)(CO)3Br/MWCNT (FECO > 92%; JCO 16.5 mA/cm2) find that this electrochemically reduces bicarbonate absence deliberately added at a remarkable overall >80% products (FEHCOO- 52% FECO 29%). diminishing returns simply adding aromatic character bipyridyl Mn(pyr-bpy)(CO)3Br/MWCNT observe unique cambering believe enables selective catalysis. Mechanistic studies were carried out using novel thin-film infrared spectroelectrochemical (IR-SEC) technique. These experiments undergo single electron Mn-centered radical binds reduction-coupled process.

Язык: Английский

---

Electrocatalysis: Prospects and Role to Enable an E‐Chemistry Future

The Chemical Record, Год журнала: 2025, Номер unknown

Опубликована: Март 3, 2025

Abstract Electrocatalysis is a crucial technology that will enable future low‐carbon chemical production and energy beyond fossil fuels. Notwithstanding the intense growing research in area, potentialities of field are largely unexplored. We provide case examples discuss emerging possibilities have still not been investigated enough but necessary to exploit this potential e‐chemistry. Starting from defining trends setting scene, as well clarifying difference between electrochemistry electrocatalysis, some elements vision foster innovation discussed. The aim stimulate discussion reflection rather than review state‐of‐the‐art. Aspects discussed regard i) passing electro photoelectrocatalytic approaches, ii) making chemicals air, iii) exploitation both anodic cathodic reactions, tandem/paired electrocatalytic iv) for selective oxidation mediated synthesis. Priorities strategies an e‐chemistry Intensifying these directions extending still‐too‐limited current including modelling design, effort accelerate realisation distributed

Язык: Английский

---

Identification of catalyst optimization trends for electrocatalytic CO₍₂₎ reduction to ethylene

EES Catalysis, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

In this perspective we analyze copper and copper-based electrocatalysts with high ethylene selectivities from the literature to identify global catalyst formulation trends that allow for making catalysts improved performance.

Язык: Английский

---

Recent Advancements Related to Silver-based Electrocatalysts for Carbon Dioxide Reduction Reaction to Carbon Monoxide

Current Opinion in Electrochemistry, Год журнала: 2025, Номер unknown, С. 101696 - 101696

Опубликована: Апрель 1, 2025

Язык: Английский

---

Synthesis of various Pb catalysts and their examination in the study of electrochemical CO₂ reduction (ECR) using a quartz crystal microbalance with a Mn₃O₄ anode

Catalysis Science & Technology, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Graphical representation of the QCM-ECR reactor setup.

Язык: Английский

---

Recent advances in the measurement of thermochemical, electrochemical and photochemical efficiency of CO2 conversion to value-added products - its challenges and future directions

Deleted Journal, Год журнала: 2025, Номер unknown, С. 100049 - 100049

Опубликована: Апрель 1, 2025

Язык: Английский

---

Multi-response optimization for a waste heat recovery rotary drum with flights: Focusing on enhancement and homogenization of heat exchange

Process Safety and Environmental Protection, Год журнала: 2025, Номер unknown

Опубликована: Апрель 1, 2025

Язык: Английский

---

Dynamic protonation of ligand sites in molecular catalysts enhances electrochemical CO ₂ reduction

Science Advances, Год журнала: 2025, Номер 11(17)

Опубликована: Апрель 25, 2025

Molecular catalysts with functional group decorations are promising for electrocatalytic CO 2 reduction to produce valuable chemicals and fuels. Using nickel phthalocyanine derivatives cyano, methoxy, dimethylamino groups, this study unveils why decorating molecular either electron-donating or electron-withdrawing groups can enhance their activity. Notably, the group–decorated catalyst demonstrated stable nearly 100% -to-CO selectivity over a wide potential range high partial current densities up 300 milliamperes per square centimeter. Theoretical in situ spectroscopic analyses revealed critical role of dynamic protonation ligand sites activating metal center, which be facilitated by decoration groups. Conversely, although requiring higher energy protonation, synergy between centers protonated sites, favoring formation key *COOH intermediates improving at bias. This underscores importance optimizing functionalized enhanced RR

Язык: Английский

---

Energy-carbon pricing-guided collaborative optimization for local integrated energy communities with multi-vector electrification consumers

Applied Energy, Год журнала: 2025, Номер 392, С. 125946 - 125946

Опубликована: Апрель 29, 2025

Язык: Английский

---