Concurrent Ammonia Synthesis and Alcohol Oxidation Boosted by Glutathione‐Capped Quantum Dots under Visible Light DOI
Shu‐Lin Meng,

Jia‐Hao Li,

Chen Ye

и другие.

Advanced Materials, Год журнала: 2024, Номер 36(24)

Опубликована: Март 19, 2024

Abstract Mother nature accomplishes efficient ammonia synthesis via cascade N 2 oxidation by lightning strikes followed with enzyme‐catalyzed nitrogen oxyanion (NO x − , = 2,3) reduction. The protein environment of enzymatic centers for NO ‐to‐NH 4 + process greatly inspires the design glutathione‐capped (GSH) quantum dots (QDs) under visible light (440 nm) in tandem plasma‐enabled oxidation. Mechanistic studies reveal that GSH induces positive shift surface charge to strengthen interaction between and QDs. Upon irradiation QDs, balanced rapid hole electron transfer furnish GS·radicals 2e /2H alcohol H·for 8e /10H 3 reduction simultaneously. For first time, mmol‐scale is realized apparent yields 5.45% ± 0.64%, gram‐scale value‐added acetophenone NH Cl proceeds 1:4 stoichiometry stability, demonstrating promising multielectron multiproton efficiency sustainability nature‐inspired artificial photocatalysts.

Язык: Английский

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

и другие.

Advanced Materials, Год журнала: 2023, Номер 36(17)

Опубликована: Июнь 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

Язык: Английский

Процитировано

237

Atomic coordination environment engineering of bimetallic alloy nanostructures for efficient ammonia electrosynthesis from nitrate DOI Creative Commons
Yunhao Wang, Mingzi Sun, Jingwen Zhou

и другие.

Proceedings of the National Academy of Sciences, Год журнала: 2023, Номер 120(32)

Опубликована: Июль 31, 2023

Electrochemical nitrate reduction reaction (NO 3 RR) to ammonia has been regarded as a promising strategy balance the global nitrogen cycle. However, it still suffers from poor Faradaic efficiency (FE) and limited yield rate for production on heterogeneous electrocatalysts, especially in neutral solutions. Herein, we report one-pot synthesis of ultrathin nanosheet-assembled RuFe nanoflowers with low-coordinated Ru sites enhance NO RR performances electrolyte. Significantly, exhibit outstanding FE 92.9% 38.68 mg h −1 cat (64.47 ) at −0.30 −0.65 V (vs. reversible hydrogen electrode), respectively. Experimental studies theoretical calculations reveal that are highly electroactive an increased d-band center guarantee efficient electron transfer, leading low energy barriers reduction. The demonstration rechargeable zinc-nitrate batteries large-specific capacity using indicates their great potential next-generation electrochemical systems.

Язык: Английский

Процитировано

113

Non-thermal plasma-assisted ammonia production: A review DOI
Jun Zhang, Xiaotian Li, Jili Zheng

и другие.

Energy Conversion and Management, Год журнала: 2023, Номер 293, С. 117482 - 117482

Опубликована: Авг. 2, 2023

Язык: Английский

Процитировано

64

Efficient ammonia synthesis from the air using tandem non-thermal plasma and electrocatalysis at ambient conditions DOI Creative Commons
Wei Liu,

Mengyang Xia,

Chao Zhao

и другие.

Nature Communications, Год журнала: 2024, Номер 15(1)

Опубликована: Апрель 25, 2024

While electrochemical N

Язык: Английский

Процитировано

40

Comprehensive understanding of the thriving electrocatalytic nitrate/nitrite reduction to ammonia under ambient conditions DOI
Xinying Zhao, Yuzhuo Jiang, Mengfan Wang

и другие.

Journal of Energy Chemistry, Год журнала: 2024, Номер 92, С. 459 - 483

Опубликована: Янв. 4, 2024

Язык: Английский

Процитировано

27

Controlled Synthesis of Unconventional Phase Alloy Nanobranches for Highly Selective Electrocatalytic Nitrite Reduction to Ammonia DOI Creative Commons
Yunhao Wang, Yuecheng Xiong, Mingzi Sun

и другие.

Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(26)

Опубликована: Апрель 22, 2024

Abstract The controlled synthesis of metal nanomaterials with unconventional phases is significant importance to develop high‐performance catalysts for various applications. However, it remains challenging modulate the atomic arrangements nanomaterials, especially alloy nanostructures that involve different metals distinct redox potentials. Here we report general one‐pot IrNi, IrRhNi and IrFeNi nanobranches hexagonal close‐packed (hcp) phase. Notably, as‐synthesized hcp IrNi demonstrate excellent catalytic performance towards electrochemical nitrite reduction reaction (NO 2 RR), superior NH 3 Faradaic efficiency yield rate 98.2 % 34.6 mg h −1 cat (75.5 Ir ) at 0 −0.1 V (vs reversible hydrogen electrode), respectively. Ex/in situ characterizations theoretical calculations reveal Ir−Ni interactions within improve electron transfer benefit both activation active generation, leading a stronger trend NO RR by greatly reducing energy barriers rate‐determining step.

Язык: Английский

Процитировано

23

Self-enhanced localized alkalinity at the encapsulated Cu catalyst for superb electrocatalytic nitrate/nitrite reduction to NH 3 in neutral electrolyte DOI Creative Commons
Zhen Shen,

Guanghai Chen,

Xueyi Cheng

и другие.

Science Advances, Год журнала: 2024, Номер 10(28)

Опубликована: Июль 10, 2024

The electrocatalytic nitrate/nitrite reduction reaction (eNO

Язык: Английский

Процитировано

22

Defect-rich AuCu@Ag nanowires with exclusive strain effect accelerate nitrate reduction to ammonia DOI

Songliang Liu,

W.F. Miao,

Kun Ma

и другие.

Applied Catalysis B Environment and Energy, Год журнала: 2024, Номер 350, С. 123919 - 123919

Опубликована: Апрель 24, 2024

Язык: Английский

Процитировано

19

A Copper–Zinc Cyanamide Solid-Solution Catalyst with Tailored Surface Electrostatic Potentials Promotes Asymmetric N-Intermediate Adsorption in Nitrite Electroreduction DOI Creative Commons

Jiacheng Jayden Wang,

Huong Thi Bui,

Xunlu Wang

и другие.

Journal of the American Chemical Society, Год журнала: 2025, Номер 147(9), С. 8012 - 8023

Опубликована: Фев. 18, 2025

The electrocatalytic nitrite reduction (NO2RR) converts nitrogen-containing pollutants to high-value ammonia (NH3) under ambient conditions. However, its multiple intermediates and multielectron coupled proton transfer process lead low activity NH3 selectivity for the existing electrocatalysts. Herein, we synthesize a solid-solution copper-zinc cyanamide (Cu0.8Zn0.2NCN) with localized structure distortion tailored surface electrostatic potential, allowing asymmetric binding of NO2-. It exhibits outstanding NO2RR performance Faradaic efficiency ∼100% an yield 22 mg h-1 cm-2, among best such process. Theoretical calculations in situ spectroscopic measurements demonstrate that Cu-Zn sites coordinated linear polarized [NCN]2- could transform symmetric [Cu-O-N-O-Cu] CuNCN-NO2- [Cu-N-O-Zn] configuration Cu0.8Zn0.2NCN-NO2-, thus enhancing adsorption bond cleavage. A paired electro-refinery Cu0.8Zn0.2NCN cathode reaches 2000 mA cm-2 at 2.36 V remains fully operational industrial-level 400 >140 h production rate ∼30 mgNH3 cm-2. Our work opens new avenue tailoring potentials using strategy advanced electrocatalysis.

Язык: Английский

Процитировано

3

Recent advances of ammonia synthesis under ambient conditions over metal-organic framework based electrocatalysts DOI Open Access
Yu Yu, Yuan Li,

Yu Hong Fang

и другие.

Applied Catalysis B Environment and Energy, Год журнала: 2023, Номер 340, С. 123161 - 123161

Опубликована: Авг. 10, 2023

Язык: Английский

Процитировано

36