Pulsed Photoelectrocatalysis-Mediated Reactive Chlorine Spillover Promotes Nanoconfined Cascade Denitrification

Applied Catalysis B Environment and Energy, Journal Year: 2025, Volume and Issue: unknown, P. 125102 - 125102

Published: Jan. 1, 2025

Language: Английский

---

Revealing the Tandem Behavior of Iron‐Group/Copper Binary Catalysts in the Electroreduction of Nitrate to Ammonia

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 16, 2025

Abstract As a green strategy for both ammonia (NH 3 ) production and wastewater purification, electrochemical reduction of nitrate (NO RR) faces challenges due to the nitrite 2 − accumulation competitive hydrogen evolution reaction (HER). Tandem catalysis NO NH offers great potential enhancing selectivity. Herein, iron‐group (Fe, Co, or Ni) nanosheets are introduced onto Cu nanowires construct Cu‐Fe, Cu‐Co, Cu‐Ni tandem systems respectively. Specifically, sites facilitate conversion . Fe sites, similar Cu, reduce , exacerbating rather than converting it their inability precisely capture Co exhibiting excellent moderate HER activity, can seamlessly operate with realize well‐ordered relay catalysis, which achieves superior yield rate 48.44 mg h −1 cm −2 Ni demonstrate removal capability at low overpotentials, leading Faraday efficiency 99.47%. However, its remarkable HER‐active property demonstrated via in situ polarization imaging makes challenge ampere‐level current densities. This work identifies behavior coupled providing reference design further optimization system.

Language: Английский

---

Valorizing Nitrate in Electrochemical Nitrogen Cycling: Copper‐Based Catalysts from Reduction to C–N Coupling

Small, Journal Year: 2025, Volume and Issue: unknown

Published: March 30, 2025

Abstract Electrochemical nitrate reduction (NO 3 RR) offers a sustainable approach to mitigating nitrogen pollution while enabling the resourceful conversion of − ) into ammonia (NH ), gas (N 2 and value‐added chemicals such as urea. Copper (Cu)‐based catalysts, with their versatile catalytic properties cost‐effectiveness, have emerged pivotal materials in advancing NO RR. This review systematically summarizes recent progress Cu‐based catalysts for RR, focusing on mechanisms, tuning strategies, applications across diverse product pathways. The intrinsic self‐reconstruction behavior synergistic effects are elucidated alongside advanced situ characterization techniques that reveal dynamic structural evolution intermediate interactions during reactions. We comprehensively discuss performance steering RR toward NH or N production, emphasizing role catalyst design (e.g., single atoms, alloys, oxides, hydroxides) enhancing selectivity efficiency. Furthermore, multifunctionality Cu is exemplified through carbon–nitrogen (C–N) coupling reactions, where reactive intermediates valorized Key challenges future directions outlined guide rational systems efficient electrochemical cycling.

Language: Английский

---

Asymmetrically tailored catalysts towards electrochemical energy conversion with non-precious materials

Chemical Society Reviews, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Asymmetric transition metal catalysts offer a path to energy devices such as water electrolysis and metal–air batteries based on non-precious metals. This work reviews strategies for their design, reaction mechanisms, future challenges.

Language: Английский

---

Synergistic engineering of doping and vacancy guiding transformation of active phase for efficient urea electrooxidation

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 180848 - 180848

Published: May 1, 2025

Language: Английский

---

Conductive Polymer Hydrogel‐Derived 3D Nanostructures for Energy and Environmental Electrocatalysis

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 16, 2024

Renewable energy and advanced water treatment technologies hold profound significance for driving sustainable development in modern society. Given the environmental friendliness high efficiency of electrocatalysis processes, great expectations are placed on their applications water-related fields. However, is limited by selectivity, activity, durability electrocatalytic reactions. Hydrogels, with hierarchical porous structure, compositional structural tunability, ease functionalization, bringing surprising advances environment. Hydrogel catalysts, inheriting advantages hydrogel materials, promise achieving significant breakthroughs electrochemical performance. Here, latest advancements fields summarized based 3D nanostructured catalysts. In addition, future potentials challenges continuing research materials environment discussed.

Language: Английский

---

Ammonia and formate cosynthesis via nitrate electroreduction combined with methanol electrooxidation over nitrogen-doped carbon-encapsulated nickel iron phosphide

Inorganic Chemistry Frontiers, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Nitrate–methanol co-electrolysis by the pairwise cathodic NO 3 RR and anodic MOR is a viable way to coproduce ammonia (NH ) formate via gentle, sustainable energy-saving “E-refining” “E-reforming” means.

Language: Английский

---

Iridium-incorporated cobalt hydroxide electrodeposited on titanium meshes enables electrosynthesis of ammonia and aromatic amine

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 9, 2024

An Ir-incorporated cobalt hydroxide electrodeposited on titanium meshes (Ir@Co(OH) 2 /TM) is developed to achieve efficient removal of nitrogen-containing pollutants, while simultaneously synthesizing high-value ammonia and aromatic amines.

Language: Английский

---