Efficient reduction of nitrate to ammonia on AuPt@ZIF-8 composite film DOI
Yijie Yang,

Guorui Tang,

Xiaoyun Liu

et al.

Chemical Communications, Journal Year: 2024, Volume and Issue: 60(99), P. 14858 - 14861

Published: Jan. 1, 2024

This work presents a unique electrocatalyst of nanoporous AuPt@ZIF-8 composite film for nitrate reduction reaction, achieving superior enhancement with high ammonia yield 131.5 μg h −1 mg cat and faradaic efficiency 95.8%.

Language: Английский

Nanoflower‐Like CuPd/CuO Heterostructure for an Energy‐Output Electrocatalytic System Coupling Ammonia Electrosynthesis and Zinc‐Nitrate Battery DOI Open Access
Jingsha Li,

Lvfei Liu,

Shunyuan Huang

et al.

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

Published: March 18, 2025

Abstract Electrochemical nitrate reduction reaction (NO 3 RR) can effectively alleviate pollution and simultaneously realize ammonia electrosynthesis at room temperature. However, it remains a significant challenge for NO RR to achieve high Faradic efficiency in full concentration range. Herein, nanoflower‐like copper‐palladium alloy/CuO heterostructure (CuPd/CuO@NF) is successfully fabricated by the hydrothermal synthesis of CuO nanoflowers subsequent formation CuPd alloy. The as‐obtained CuPd/CuO@NF exhibits remarkable electrochemical performance − ‐N range from 20 1400 ppm, especially with conversion rate 97.8% NH selectivity 99.3% 94.2% yield 1.37 mmol h −1 cm −2 ppm. In‐situ Fourier transform infrared spectroscopy Raman spectra reveal that first catalyzes 2 , which rapidly reduced forming *NH, *NH OH intermediates. Density functional theory calculations suggest NHO route thermodynamically favorable. When applied zinc‐nitrate battery, demonstrates maximum power density 53.7 mW 99.9% 94.4%. This work offers valuable insights into design novel electrocatalysts batteries.

Language: Английский

Citations

4
Boosting Active Hydrogen Generation via Ruthenium Single Atoms for Efficient Electrocatalytic Nitrate Reduction to Ammonia DOI

Tianyi Xiang,

Xiaoqian Liu, Ziwei Wang

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: unknown, P. 124943 - 124943

Published: Dec. 1, 2024

Language: Английский

Citations

14
Hierarchical Carbon‐Based Electrocatalyst with Functional Separation Properties for Efficient pH Universal Nitrate Reduction DOI Open Access
Xiaowen Liu, Linjie Zhao, Yang Shen

et al.

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

Published: Feb. 7, 2025

Abstract The electrocatalytic reduction of nitrate (eNO 3 − RR) to ammonia (NH ) across varying pH is great significance for the treatment practical wastewater containing nitrate. However, developing highly active and stable catalysts that function effectively in a wide range remains formidable challenge. Herein, hierarchical carbon‐based metal‐free electrocatalyst (C‐MFEC) winged carbon coaxial nanocables (W‐CCNs, situ generated graphene nanosheets outside layer with abundant topological defects from pristine nanotubes, CNTs), prepared through moderate oxidation CNTs subsequent introduction defects. W‐CCNs feature functional separation properties, an inner core facilitates efficient charge transfer, while outer shell composed layers enriched characterized by distinct atom configurations, which play crucial role promoting adsorption NO , dissociation water, N─H bond formation. This innovative design enables C‐MFEC exhibit outstanding performance eNO RR, operating efficiently NH yield rates 49.5, 75.3, 88.1 g h −1 cat. acidic, neutral, alkaline media, respectively. Such metrics not only outshine C‐MFECs but also rival or surpass those certain metal‐based catalysts.

Language: Английский

Citations

2
Recent Breakthroughs in Electrocatalytic Reduction of Nitrogen-Oxyanions for Environmentally Benign Ammonia Synthesis DOI
Minghang Jiang, Xiaochuan Huang, Dan Luo

et al.

Nano Energy, Journal Year: 2025, Volume and Issue: unknown, P. 110683 - 110683

Published: Jan. 1, 2025

Language: Английский

Citations

1
Enhanced Activity and Stability for Electrocatalytic Nitrate Reduction to Ammonia over Low‐Coordinated Cobalt DOI Open Access

Wanping Sun,

Ying Xu, Yang Li

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 31, 2025

It is still challenging to develop an effective strategy simultaneously enhance the activity and stability of electrocatalysts for electrocatalytic nitrate reduction reaction (eNO3RR). Herein, taking metallic cobalt as example, it demonstrated that construction low-coordinated nanosheets (L-Co NSs) by H2 plasma etching electrodeposited (Co can greatly eNO3RR. Compared with Co NSs, at -0.4 V versus RHE, removal rate, ammonia partial current density, yield are increased L-Co NSs from 82.14% 98.57%, 476 683 mA cm-2, 2.11 2.54 mmol h-1 respectively. In addition, demonstrate negligible decay after 30 cycles test, while show significant decline. situ electrochemical characterizations theoretical calculations verify abundance vacancies in not only contribute optimized electronic structure enhanced desorption key intermediate boost but also facilitate transformation Co(OH)2 Co0 promote stability. Furthermore, exhibit favorable performance removing simulated wastewater air discharge-electrocatalytic cascade system produce ammonia.

Language: Английский

Citations

1
Enhancing electrocatalytic nitrate/nitric oxide reduction to NH3 on two-dimensional p-block InSe monolayer via defect engineering DOI
Xuxin Kang, Qingchao Fang,

Hanqing Yin

et al.

Molecular Catalysis, Journal Year: 2024, Volume and Issue: 568, P. 114477 - 114477

Published: Aug. 27, 2024

Language: Английский

Citations

5
Self‐Reconstruction Induced Electronic Metal‐Support Interaction for Modulated Cu+ Sites on TiO2 Nanofibers in Electrocatalytic Nitrate Conversion DOI

Yuting Cong,

Xuxin Kang, Ziyang Wu

et al.

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 10, 2024

The Cu

Language: Английский

Citations

4
Synergistic modulation of iron phosphide and phosphorus-doped carbon to boost ammonia electrosynthesis from nitrate DOI
Zihao Fan, Bo Pang, Wanting Chen

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: 507, P. 160088 - 160088

Published: Jan. 31, 2025

Language: Английский

Citations

0
Stepwise H*-Mediated and Non-H* Reduction Processes for Highly Selective Transformation of Nitrate to Nitrogen Gas Using a ZVAl-Based Material DOI
Yan Li, Wenjie Liu, Hua Zhu

et al.

Environmental Science & Technology, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 6, 2025

Improving the reduction efficiency and N2 selectivity is important for nitrate decontamination. A novel ternary ball-milled Al-Cu-AC material reported to achieve a highly selective of N2. The process, driven by continuous dissolution zero-valent aluminum (ZVAl), demonstrated stepwise scheme. interesting shift in electron-donating pathways was ascribed spontaneous change microenvironmental pH from neutral alkaline. (1:1:5 mass ratio) completely removed 30 mg/L NO3--N over wide range (5-9), achieving 83% TN removal N2-selectivity, without detectable copper leaching. atomic hydrogen (H*)-mediated occurring on Cu component proven be crucial fast transformation NO3- NO2-, while non-H* process dominated electrochemical NO2- AC cathode Al || microgalvanic cells formed material. primary route identified as *NOH pathway, superiority toward verified with actual wastewater. This study revealed how influenced ZVAl provides new approach maximize performance metals.

Language: Английский

Citations

0
In-situ reconstruction of electrocatalysts for efficient energy and environmental electrocatalytic reactions DOI
Hongxia Luo,

Chaopeng Xiong,

Miaomiao Jiang

et al.

Materials Science and Engineering R Reports, Journal Year: 2025, Volume and Issue: 164, P. 100978 - 100978

Published: March 23, 2025

Language: Английский

Citations

0