Electrocatalytic Nitrate Reduction on Metallic CoNi‐Terminated Catalyst with Industrial‐Level Current Density in Neutral Medium DOI
Yingying Wei, Jingjing Huang, Hong Chen

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(30)

Published: May 9, 2024

Abstract Green ammonia synthesis through electrocatalytic nitrate reduction reaction (eNO 3 RR) can serve as an effective alternative to the traditional energy‐intensive Haber‐Bosch process. However, achieving high Faradaic efficiency (FE) at industrially relevant current density in neutral medium poses significant challenges eNO RR. Herein, with guidance of theoretical calculation, a metallic CoNi‐terminated catalyst is successfully designed and constructed on copper foam, which achieves FE up 100% under industrial‐level very low overpotential (−0.15 V versus reversible hydrogen electrode) medium. Multiple characterization results have confirmed that maintained metal atom‐terminated surface interaction atoms plays crucial role reducing density. By constructing homemade gas stripping absorption device, complete conversion process for high‐purity ammonium products demonstrated, displaying potential practical application. This work suggests sustainable promising toward directly converting nitrate‐containing pollutant solutions into nitrogen fertilizers.

Language: Английский

Recent advances in nanostructured heterogeneous catalysts for N-cycle electrocatalysis DOI Creative Commons
Jie Liang, Qian Liu, Abdulmohsen Ali Alshehri

et al.

Deleted Journal, Journal Year: 2022, Volume and Issue: 1, P. e9120010 - e9120010

Published: May 30, 2022

To restore the natural nitrogen cycle (N-cycle), artificial N-cycle electrocatalysis with flexibility, sustainability, and compatibility can convert intermittent renewable energy (e.g., wind) to harmful or value-added chemicals minimal carbon emissions. The background of such N-cycles, as fixation, ammonia oxidation, nitrate reduction, is briefly introduced here. discussion emerging nanostructures in various conversion reactions focused on architecture/compositional design, electrochemical performances, reaction mechanisms, instructive tests. Energy device advancements for achieving more functions well in situ/operando characterizations toward understanding key steps are also highlighted. Furthermore, some recently proposed less discussed C–N coupling summarized. We classify inorganic sources that each other under an applied voltage into three types, namely, abundant nitrogen, toxic (nitrite), oxides, useful compounds ammonia, hydrazine, hydroxylamine, goal providing critical insights strategies facilitate development our circular economy.

Language: Английский

Citations

349
Advances in ammonia electrosynthesis from ambient nitrate/nitrite reduction DOI Creative Commons
Jie Liang, Zixiao Li, Longcheng Zhang

et al.

Chem, Journal Year: 2023, Volume and Issue: 9(7), P. 1768 - 1827

Published: June 21, 2023

Language: Английский

Citations

270
Electrochemical Nitrate Reduction: Ammonia Synthesis and the Beyond DOI
Yuecheng Xiong, Yunhao Wang, Jingwen Zhou

et al.

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(17)

Published: June 9, 2023

Natural nitrogen cycle has been severely disrupted by anthropogenic activities. The overuse of N-containing fertilizers induces the increase nitrate level in surface and ground waters, substantial emission oxides causes heavy air pollution. Nitrogen gas, as main component air, used for mass ammonia production over a century, providing enough nutrition agriculture to support world population increase. In last decade, researchers have made great efforts develop processes under ambient conditions combat intensive energy consumption high carbon associated with Haber-Bosch process. Among different techniques, electrochemical reduction reaction (NO

Language: Английский

Citations

214
Interfacial polarization in metal-organic framework reconstructed Cu/Pd/CuOx multi-phase heterostructures for electrocatalytic nitrate reduction to ammonia DOI

Tianlun Ren,

Zuan Yu,

Hongjie Yu

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2022, Volume and Issue: 318, P. 121805 - 121805

Published: July 28, 2022

Language: Английский

Citations

157
Recent Advances in Electrocatalysts for Efficient Nitrate Reduction to Ammonia DOI
Di Liu, Lulu Qiao,

Shuyang Peng

et al.

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(43)

Published: June 25, 2023

Abstract Ammonia as an irreplaceable chemical has been widely demanded to keep the sustainable development of modern society. However, its industrial production consumes huge energy and releases extraordinary green‐house gases, leading various environmental issues. To achieve green ammonia is a great challenge that extensively pursued recently. In review, most promising strategy, electrochemical nitrate reduction reaction (e‐NO 3 RR) for purpose comprehensively investigated give full understanding mechanism provide guidance future directions. Particularly, electrocatalysts focused realize high yield rate Faraday efficiency applications. The recent‐developed catalysts, including noble metallic materials, alloys, metal compounds, single‐metal‐atom metal‐free are systematically discussed review effects factors on catalytic performance in e‐NO RR. Accordingly, strategies, defects engineering, coordination environment modulating, surface controlling, hybridization, carefully improve performance, such intrinsic activity selectivity. Finally, perspectives challenges given out. This shall insightful advanced systems efficiently industry.

Language: Английский

Citations

144
High-Efficiency Electrochemical Nitrate Reduction to Ammonia on a Co3O4 Nanoarray Catalyst with Cobalt Vacancies DOI
Zhiqin Deng, Chaoqun Ma, Zerong Li

et al.

ACS Applied Materials & Interfaces, Journal Year: 2022, Volume and Issue: 14(41), P. 46595 - 46602

Published: Oct. 5, 2022

Electrocatalytic nitrate reduction reaction (NO3RR) affords a bifunctional character in the carbon-free ammonia synthesis and remission of pollution water. Here, we fabricated Co3O4 nanosheet array with cobalt vacancies on carbon cloth (vCo-Co3O4/CC) by situ etching aluminum-doped Co3O4/CC, which exhibits an excellent Faradaic efficiency 97.2% large NH3 yield as high 517.5 μmol h-1 cm-2, better than pristine Co3O4/CC. Theoretical calculative results imply that can tune local electronic environment around Co sites Co3O4, increasing charge reducing electron cloud density sites, is thus conducive to adsorption NO3- for greatly enhanced reduction. Furthermore, vCo-Co3O4 (311) facet presents NO3RR activity low energy barrier about 0.63 eV potential-determining step, much smaller (1.3 eV).

Language: Английский

Citations

126
Weakened d–p orbital hybridization inin situreconstructed Ru/β-Co(OH)2heterointerfaces for accelerated ammonia electrosynthesis from nitrates DOI

Weijie Zhu,

Fen Yao,

Qiongfei Wu

et al.

Energy & Environmental Science, Journal Year: 2023, Volume and Issue: 16(6), P. 2483 - 2493

Published: Jan. 1, 2023

Electron-deficient Ru sites at Ru/Co(OH) 2 heterointerfaces weaken the d–p orbital hybridization ability and further facilitate desorption of ammonia intermediates, thereby achieving ultrahigh nitrate electroreduction activity towards ammonia.

Language: Английский

Citations

107
Oxygen vacancies in Co3O4nanoarrays promote nitrate electroreduction for ammonia synthesis DOI
Xiang Xu,

Long Hu,

Zerong Li

et al.

Sustainable Energy & Fuels, Journal Year: 2022, Volume and Issue: 6(18), P. 4130 - 4136

Published: Jan. 1, 2022

Oxygen vacancy-enriched Co 3 O 4 nanosheet arrays enable ambient electrosynthesis of NH via nitrate reduction, achieving a faradaic efficiency 96.9% and yield 12 157 μg h −1 cm −2 in 0.1 M NaOH with NO − .

Language: Английский

Citations

104
Energy-efficient electrochemical ammonia production from dilute nitrate solution DOI Creative Commons
Keon‐Han Kim,

Heebin Lee,

Xiaopeng Huang

et al.

Energy & Environmental Science, Journal Year: 2023, Volume and Issue: 16(2), P. 663 - 672

Published: Jan. 1, 2023

Highly efficient electrochemical nitrate reduction could be key for sustainable ammonia production. Our NiFe LDH/Cu foam electrode exhibits an NH 3 selectivity of 95.8% with 98.5% conversion.

Language: Английский

Citations

103
Metastable Phase Cu with Optimized Local Electronic State for Efficient Electrocatalytic Production of Ammonia from Nitrate DOI

Weidong Wen,

Ping Yan,

Wanping Sun

et al.

Advanced Functional Materials, Journal Year: 2022, Volume and Issue: 33(6)

Published: Nov. 28, 2022

Abstract Electrocatalytic nitrate (NO 3 − ) reduction reaction (NITRR) is an inspiring route for ammonia (NH synthesis at ambient condition. The metallic Cu‐based material with low cost and high activity one of the most promising electrocatalysts NITRR. However, due to weaker atomic H * ‐providing capacity, produced intermediate—nitrite tends accumulate on its surface, leading unsatisfactory NH selectivity Faradic efficiency (FE). Herein, a novel facile O 2 /Ar plasma oxidation subsequent electro‐reduction strategy developed synthesize kind metastable phase Cu. Excitingly, Cu demonstrates superior NITRR performance conventional 4 + (97.8%) FE (99.8%). Density function theory (DFT) calculations reveal that upshift d ‐band center near Fermi level in contributes enhanced activity, while relatively strong adsorption facilitates conversion from NO /NO NOOH /NOH thus ensures FE. Furthermore, when evaluated as cathode Zn‐NO battery, power density (7.56 mW cm −2 yield (76 µmol h −1 are achieved by battery.

Language: Английский

Citations

101