Critical review in electrocatalytic nitrate reduction to ammonia towards a sustainable nitrogen utilization

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 483, P. 148952 - 148952

Published: Jan. 22, 2024

Language: Английский

---

Cu–Bi Bimetallic Sulfides Loaded on Two-Dimensional Ti₃C₂T_x MXene for Efficient Electrocatalytic Nitrogen Reduction under Ambient Conditions

Nano Letters, Journal Year: 2024, Volume and Issue: 24(33), P. 10297 - 10304

Published: Aug. 12, 2024

In this paper, Ti

Language: Английский

---

Recent advances in 2D structured materials with defect-exploiting design strategies for electrocatalysis of nitrate to ammonia

Energy Materials, Journal Year: 2024, Volume and Issue: 4(2)

Published: March 15, 2024

Ammonia has been used in a wide variety of applications, and with the recent interest hydrogen energy as green source, it is emerging cost-effective, high-density carrier due to its three atoms. Currently, ammonia produced by Haber-Bosch method at high temperatures pressure, which energy-intensive emits large amounts carbon dioxide. As viable alternative, electrochemical conversion nitrate emerged an efficient eco-friendly synthesis method. To encourage further exploration this field, review offers insights into utilizing two-dimensional materials catalysts, focusing on designs that exploit defects for reduction ammonia.

Language: Английский

---

MXene-based catalysts: A review

Materials Today Catalysis, Journal Year: 2024, Volume and Issue: 5, P. 100054 - 100054

Published: May 27, 2024

Two-dimensional (2D) materials, such as graphene, hexagonal boron nitride, 2D metal–organic frameworks, layered double hydroxides, transition metal dichalcogenides, and MXenes, have garnered significant attention in catalysis due to their exceptional properties structures. Notably, recent studies revealed the promising catalytic activity of MXene-based catalysts for many reactions, including hydrogen evolution, oxygen reduction, nitrogen carbon dioxide alcohol oxidation, hydrogenation, dehydrogenation, methanol conversion, dry reforming methane, CO oxidation. This review offers a summary advances field, contextualizing progress made. Additionally, it delves into existing challenges while presenting prospects future developments this domain.

Language: Английский

---

Boron‐Doped Ti₃C₂T_x MXene for Effective and Durable High‐Current‐Density Ammonia Synthesis

Small, Journal Year: 2024, Volume and Issue: 20(45)

Published: July 24, 2024

Abstract Ammonia (NH 3 ) synthesis via the nitrate reduction reaction (NO RR) offers a competitive strategy for nitrogen cycling and carbon neutrality; however, this is hindered by poor NO RR performance under high current density. Herein, it shown that boron‐doped Ti C 2 T x MXene nanosheets can highly efficiently catalyze conversion of RR‐to‐NH at ambient conditions, showing maximal NH Faradic efficiency 91% with peak yield rate 26.2 mgh −1 mg cat. , robust durability over ten consecutive cycles, all them are comparable to best‐reported results exceed those pristine MXene. More importantly, when tested in flow cell, designed catalyst delivers density ‒1000 mA cm −2 low potential ‒1.18 V versus reversible hydrogen electrode maintains selectivity wide range. Besides, Zn–nitrate battery as cathode assembled, which achieves power 5.24 mW 1.15 . Theoretical simulations further demonstrate boron dopants optimize adsorption activation intermediates, reduce potential‐determining step barrier, thus leading an enhanced selectivity.

Language: Английский

---

Emerging MXene-based electrocatalysts for efficient nitrate reduction to ammonia: recent advance, challenges, and prospects

Energy Materials, Journal Year: 2024, Volume and Issue: 4(5)

Published: June 4, 2024

Ammonia (NH3) plays an irreplaceable role in traditional agriculture and emerging renewable energy. Its preparation industry mainly relies on the energy-intensive Haber-Bosch process, which is associated with high energy consumption large CO2 emissions. Recently, nitrate reduction reaction (NO3-RR) driven by has received extensive attention. This can efficiently synthesize NH3 water as a hydrogen source NO3- nitrogen under mild conditions, conducive to reducing promoting carbon cycle. It well known that properties of electrocatalysts determine performance NO3-RR. As two-dimensional material, MXenes (transition metal carbides/nitrides/carbon nitrides) possess excellent electrical conductivity, specific surface area controllable functional groups, shows great application potential field Herein, this review summarized structure, synthesis strategies elucidate possibilities from foundation application. Then, latest research progress applying MXene-based NO3-RR was applicability different detection methods analyzed. Finally, present challenges future prospects were presented. aimed provide thoughtful insights into rational design for sustainable synthesis.

Language: Английский

---

Recent progress in the advanced strategies, rational design, and engineering of electrocatalysts for nitrate reduction toward ammonia

Physical Chemistry Chemical Physics, Journal Year: 2024, Volume and Issue: 26(15), P. 11208 - 11216

Published: Jan. 1, 2024

Electrocatalytic nitrate reduction to ammonia offers a sustainable pathway for the synthesis of ammonia, its modular design and versatility make it suitable addressing environmental pollution nitrogen management.

Language: Английский

---

Highly selective and stable electrochemical reduction of nitrate to ammonia using VO2-x/CuF catalyst with oxygen vacancies

Journal of Power Sources, Journal Year: 2024, Volume and Issue: 608, P. 234644 - 234644

Published: May 7, 2024

Language: Английский

---

Synergistic mechanism of electrocatalytic degradation of typical antibiotics by high-entropy MXenes modified metal organic gels catalysts: Theoretical and experimental studies

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 352, P. 128141 - 128141

Published: May 29, 2024

Language: Английский

---

Mxene-Cu Electrified Membranes with Confined Lamellar Channels for the Flow-through Electrochemical Reduction of Nitrate to Ammonia

ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: 12(8), P. 3378 - 3389

Published: Feb. 13, 2024

Electrochemical conversion of nitrate to valuable ammonia is a promising but challenging study wastewater treatment and resource recovery. Herein, we reported an MXene-Cu lamellar electrified membrane with confined channels as flow-through electrode for (NH3) synthesis by (NO3–) reduction. The introduction Cu nanoparticles into Ti3C2Tx-stacked membranes could broaden their plane improve the mass transfer while confining permeability achieve modulation water flux. By coordination catalytic capacity well tunable flux, Ti3C2Tx-Cu electrodes exhibited excellent electrocatalytic performance. Particularly, in closed-cycle mode, optimized were able convert NO3– NH3 efficiently, even at high feed concentrations. In addition, these possessed not only long-term durability also resistance organic dye contaminations due inherent rejection capability, which allowed them maintain stable properties complex solutions. This work demonstrates that use MXene-based may be alternative strategy sustainable decontamination synthesis, will conduce practical application specific electrochemistry field.

Language: Английский

---