A nanoflower-on-nanowire heterogeneous electrocatalyst for enhanced interfacial water activation in nitrate reduction reaction DOI
Jingwen Yu,

Yunliang Liu,

Cunhao Fan

et al.

Nano Research, Journal Year: 2024, Volume and Issue: 18(2), P. 94907135 - 94907135

Published: Dec. 16, 2024

Language: Английский

Engineering Ce Promoter to Regulate H* Species to Boost Tandem Electrocatalytic Nitrate Reduction for Ammonia Synthesis DOI Open Access

Jihong Dong,

Xue‐Zhi Song,

Yu‐Xiang Chen

et al.

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

Published: Feb. 5, 2025

Abstract The renewable‐energy‐powered electroreduction of nitrate (NO 3 RR) to ammonia emerges as a generalist for contamination remediation, green synthesis, and even advanced energy conversion, garnering significant interest. However, it comes across limited yield selectivity due the imbalance active hydrogen (H * ) supply within cutting‐edge single‐center Cu‐based materials. Herein, secondary Ce entity is engineered into Cu/MoO 2 @C substrate by thermal treatment Ce‐doping NENU‐5 precursors provide H effectively. A high NH rate (20.3 ± 0.7 mg h −1 cat. NO − −to−NH Faradaic efficiency (92 3%) at −0.4 V (vs RHE) can be reached in 5%Ce‐Cu/MoO @C, ranking among recently reported state‐of‐the‐art catalysts. core this boosting performance lies dual‐site tandem catalysis, which Cu site adsorbs activates , dissociates water generate respectively. And spillover from vicinal x intermediates on promotes hydrogenation generation with selectivity. Theoretical calculations further indicate that engineering optimizes electronic properties, activation adsorbed decreases barrier rate‐determining step catalysis. These findings consolidate positive role rare earth center highlight its corresponding catalysis sustainable synthesis.

Language: Английский

Citations

2
V2O3/VN electrocatalysts with coherent heterogeneous interfaces for selecting low‐energy nitrogen reduction pathways DOI Creative Commons

Tae‐Yong An,

Chengkai Xia, Minyeong Je

et al.

SusMat, Journal Year: 2024, Volume and Issue: 4(4)

Published: July 11, 2024

Abstract Electrochemical nitrogen reduction reaction (NRR) is a sustainable alternative to the Haber‒Bosch process for ammonia (NH 3 ) production. However, significant uphill energy in multistep NRR pathway bottleneck favorable serial reactions. To overcome this challenge, we designed vanadium oxide/nitride (V 2 O /VN) hybrid electrocatalyst which V and VN coexist coherently at heterogeneous interface. Since single‐phase exhibit different surface catalytic kinetics NRR, /VN can provide alternating pathways, selecting lower each material pathway. As result, yield of was 219.6 µg h −1 cm −2 , Faradaic efficiency 18.9%, much higher than that VN, x y solid solution catalysts without heterointerfaces. Density functional theory calculations confirmed composition these electrocatalysts allows proceed from low‐energy through migration adsorption intermediate species. Therefore, design metal hybrids with coherent heterointerfaces provides novel strategy synthesizing highly efficient electrochemical induce steps progression NRR.

Language: Английский

Citations

10
Facet-Dependent Evolution of Active Components on Spinel Co3O4 for Electrochemical Ammonia Synthesis DOI
Anquan Zhu,

Heng Liu,

Shuyu Bu

et al.

ACS Nano, Journal Year: 2024, Volume and Issue: 18(33), P. 22344 - 22355

Published: Aug. 6, 2024

Spinel cobalt oxides (Co

Citations

8
Highly Efficient Electrocatalytic Nitrate Reduction to Ammonia: Group VIII-Based Catalysts DOI

Shiyue Yin,

Zhixi Guan,

Yuchuan Zhu

et al.

ACS Nano, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 4, 2024

The accumulation of nitrates in the environment causes serious health and environmental problems. electrochemical nitrate reduction reaction (e-NO

Language: Английский

Citations

8
Perovskite Oxides: Syntheses and Perspectives on Their Application for Nitrate Reduction DOI Creative Commons
Ajibola A. Bayode, Odunayo T. Ore,

Esther A. Nnamani

et al.

ACS Omega, Journal Year: 2024, Volume and Issue: 9(18), P. 19770 - 19785

Published: April 23, 2024

Over the decades, rise in nitrate levels ecosystem has posed a serious threat to continuous existence of humans, fauna, and flora. The deleterious effects increasing nitrates have led adverse health environmental implications form methemoglobinemia eutrophication, respectively. Different pathways/routes for syntheses perovskites their oxides were presented this review. In recent times, electrocatalytic reduction emerged as most utilized technique conversion into ammonia, an industrial feedstock. According published papers, efficiency various used achieved high Faradaic 98%. Furthermore, studies shown that there is need improve chemical stability during scale-up applications, well scalability applications.

Language: Английский

Citations

7
Electrochemical reduction of nitrate to Ammonia: Recent progress and future directions DOI

Nam Hoang Truong,

Jin‐Soo Kim, Jonghun Lim

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 495, P. 153108 - 153108

Published: June 13, 2024

Language: Английский

Citations

7
Enhancing Efficiency of Nitrate Reduction to Ammonia by Fe and Co Nanoparticles Based Bimetallic Electrocatalyst DOI Open Access
Irina Kuznetsova, Olga Lebedeva, Dmitry Kultin

et al.

Published: June 21, 2024

Green and sustainable electrocatalytic conversion of nitrogen-containing compounds to ammonia are currently in high demand order replace the eco-unfriendly Haber-Bosch process. Model catalysts for nitrate reduction reaction were obtained by electrodeposition metal Co, Fe bimetallic Fe/Co nanoparticles from aqueous solutions onto a graphite substrate. The samples characterized following methods: SEM, XRD, XPS, UV-vis spectroscopy, cyclic (and linear) voltammetry, chronoamperometry electrochemical impedance spectroscopy. Besides, determination electrochemically active surface was also performed all electrocatalysts. best electrocatalyst sample containing Fe-nanoparticles on layer Co-nanoparticles, which showed Faradaic efficiency 58.2% (E=-0.785 V vs. RHE) at yield rate 14.6 μmol h-1 cm-2. An opinion expressed elucidation mechanism coordinated action electrocatalyst. This work can serve primarily as starting point future investigations reactions using model proposed type.

Language: Английский

Citations

6
2D MXene-derived 3D TiO2-NiCoPx hierarchical heterostructures for efficient water splitting DOI

Chulong Jin,

Zuliang Zhang,

Liangqi Gui

et al.

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 1002, P. 175492 - 175492

Published: Oct. 1, 2024

Language: Английский

Citations

6
Oxygen-deficient NiCo2O4 porous nanowire for superior electrosynthesis of ammonia coupling with valorization of ethylene glycol DOI

Yiming Guo,

Yun Tong, Guorong Zhou

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 496, P. 154220 - 154220

Published: July 22, 2024

Language: Английский

Citations

5
Maximizing Available Active Hydrogen on FeNi Substitutional Solid-Solution Alloy to Boost Electrosynthesis of Ammonia from Nitrate DOI
Xing Sun, Yanzheng He, Mengfan Wang

et al.

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 20, 2025

Electrochemical nitrate reduction reaction (NO3RR) stands out as a promising route for sustainable ammonia synthesis, in which active hydrogen (*H) plays crucial role both the deoxygenation and hydrogenation steps. However, regulation of surface *H is still overlooked, without intervention, competing evolution kinetically more favored over NO3RR, leaving current system far from satisfactory. Herein, based on reverse utilization Sabatier principle, series FexNiy substitutional solid-solution alloys (SSAs) are synthesized to manipulate behavior enhanced NO3RR. Upon precise optimization alloy composition, d-band center HER-active Ni shifts toward Fermi level, endowing catalyst with strong interaction greatly prolonging its lifetime, enables abundant supply facilitate As expected, maximum NH3 yield rate 31.46 mmol h-1 mg-1 delivered optimized Fe3Ni1-SSA, considerably higher than most extensively reported works. Several situ characterizations combined gain in-depth insight. Especially, Fourier transform infrared spectroscopy internal reflection mode directly observes enrichment surface, while accompanied facilitation NO3RR process verified by external mode.

Language: Английский

Citations

0