Relay Catalysis of Fe and Co with Multi‐Active Sites for Specialized Division of Labor in Electrocatalytic Nitrate Reduction Reaction

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Апрель 8, 2024

Abstract Electrocatalytic nitrate reduction reaction (NO 3 RR) driven by renewable energy is a promising technology for the removal of nitrate‐containing wastewater. However, sluggish kinetics resulted from complex proton‐coupled electron transfer and various intermediates remain key barriers large‐scale application NO RR. Herein, tactic reported to raise rate RR increase selectivity N 2 using bimetal catalyst: Co inclined act on steps needed in process, rate‐determining step (RDS: *NO , asterisk means intermediates) subsequent *N hydrogenation as well Fe exhibits efficient activity selectivity‐ determining (SDS: then ) via relay catalysis mechanism. A efficiency 78.5% an ultra‐long cycle stability 60 cycles (12 h per cycle) are achieved FeCo alloy confined with nitrogen‐doped porous carbon nanofibers (FeCo‐NPCNFs). DFT calculations unveil that introduction active site not only regulates d‐band center alloy, optimizes adsorption intermediates, but also has strong capacity supply hydrogen species. Clearly, this study elucidates effects bimetallic performance electrocatalytic offers avenues designing Fe‐based catalysts realize nitrogen‐neutral cycle.

Язык: Английский

---

Fe-doped Co3O4 nanowire strutted 3D pinewood-derived carbon: A highly selective electrocatalyst for ammonia production via nitrate reduction

Nano Research, Год журнала: 2023, Номер 17(4), С. 2276 - 2282

Опубликована: Окт. 18, 2023

Язык: Английский

---

Highly dispersed copper-iron nanoalloy enhanced electrocatalytic reduction coupled with plasma oxidation for ammonia synthesis from ubiquitous air and water

Nano Energy, Год журнала: 2023, Номер 117, С. 108840 - 108840

Опубликована: Авг. 29, 2023

Язык: Английский

---

A multilayer triboelectric-electromagnetic hybrid nanogenerator for vibration energy harvesting and frequency monitoring

Nano Energy, Год журнала: 2023, Номер 116, С. 108818 - 108818

Опубликована: Авг. 22, 2023

Язык: Английский

---

Advanced triboelectric nanogenerator based self-powered electrochemical system

Chemical Engineering Journal, Год журнала: 2024, Номер 481, С. 148640 - 148640

Опубликована: Янв. 8, 2024

Язык: Английский

---

A Cu–Co₃O₄ Tandem Catalyst for Efficient Electrocatalytic Nitrate Reduction at Low Concentration

ACS Materials Letters, Год журнала: 2024, Номер 6(7), С. 2591 - 2598

Опубликована: Май 28, 2024

Electrocatalytic reduction of nitrate (NO3–) in waste streams to valuable ammonia under ambient conditions is a green route for remediation. However, efficient catalysts are required this multistep proton coupled electron transfer reaction. This work presented tandem catalyst composed N-doped carbon layer coated Co3O4 with CuOx as highly and selective electrocatalyst NO3– NH3 at low onset potential. The catalysis → NO2– over the two synergistical sites situ generated metallic Cu was verified by experiments theoretical calculations. Benefiting from active sites, exhibited an yield rate 3.23 mg h–1 cm–2 Faradaic efficiency 93.77% ultralow potential −0.1 V versus RHE. opens new avenue design electrocatalytic reduction.

Язык: Английский

---

Self-powered Electroassisted Photocatalysis for Wastewater Treatment

Nano Energy, Год журнала: 2024, Номер 133, С. 110463 - 110463

Опубликована: Ноя. 10, 2024

Язык: Английский

---

Printed graphene electrodes for textile-embedded triboelectric nanogenerators for biomechanical sensing

Nano Energy, Год журнала: 2023, Номер 115, С. 108688 - 108688

Опубликована: Июль 12, 2023

Язык: Английский

---

Self-powered wind detection and positioning system for hot air balloon based on multi-module triboelectric nanogenerator

Nano Energy, Год журнала: 2023, Номер 116, С. 108791 - 108791

Опубликована: Авг. 16, 2023

Язык: Английский

---

Self-powered sensor for online monitoring of eccentricity faults in rotating machinery and its application in spindle eccentricity monitoring of machine tools

Nano Energy, Год журнала: 2024, Номер 130, С. 110084 - 110084

Опубликована: Авг. 3, 2024

Язык: Английский

---