Atomically dispersed iron & iron clusters synergistically accelerate electrocatalytic ammonia synthesis DOI
Haoran Zhang,

Yuelong Liu,

Sanshuang Gao

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 158785 - 158785

Published: Dec. 1, 2024

Language: Английский

In Situ Spectroscopic Probing of the Hydroxylamine Pathway of Electrocatalytic Nitrate Reduction on Iron‐Oxy‐Hydroxide DOI Open Access

Dikshita Garg,

Laxmikanta Mallick,

Avinava Kundu

et al.

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

Published: Jan. 14, 2025

Abstract Crystalline γ‐FeO(OH) dominantly possessing ─ OH terminals (𝛾‐FeO(OH) c ), polycrystalline containing multiple O, OH, and Fe pc α‐Fe 2 O 3 majorly surface are used as electrocatalysts to study the effect of on electrocatalytic nitrate reduction reaction (eNO RR) selectivity stabilization intermediates. Brunauer‐Emmett‐Teller analysis electrochemically determined area suggest a high active 117.79 m g −1 (ECSA: 0.211 cm ) for 𝛾‐FeO(OH) maximizing accessibility adsorption exhibiting selective eNO RR NH at pH 7 with yield rate 18.326 mg h −2 , >85% Faradaic efficiency (FE), least nine‐times catalyst‐recyclability. 15 N‐ D‐labeling combined in situ IR Raman studies validate ions generation nitrite hydroxyl amine A kinetic isotope (KIE) value 2.1 indicates H proton source proton‐coupled electron transfer rate‐limiting step. The rotating‐ring disk electrochemical (RRDE) subsequent Koutecký‐Levich reveal electron‐transfer constant (k) 2e‐ is 5.7 × 10 −6 s . This provides direct evidence formation dominant pathway γ‐FeO(OH).

Language: Английский

Citations

1
Spin-mediated electrocatalytic nitrate reduction to ammonia on two-dimensional transition metal borides DOI
Yu Yan, Xiaoxiao Li, Jiaqi Chen

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 159775 - 159775

Published: Jan. 1, 2025

Language: Английский

Citations

1
Advancing chlorine evolution reaction efficiency through magnetization-induced electron polarization and surface PdO exposure on ferromagnetic CNP/CC electrodes DOI
Yun Zhang,

Guangfei Qu,

Yaoze Wang

et al.

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 105, P. 583 - 591

Published: Jan. 25, 2025

Language: Английский

Citations

1
Controlling electrocatalytic nitrate reduction efficiency by utilizing dπ–pπ interactions in parallel stacking molecular systems DOI Creative Commons
S. Bhowmick, Ashadul Adalder, Abhishek Maiti

et al.

Chemical Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

The orientation of β-CuPc favours the overlap central Cu with N parallel molecules, which is reason behind high electrical conductivity and selectivity in NH 3 production via nitrate reduction, impossible other polymorphs.

Language: Английский

Citations

1
Structure Reconstruction Driven by Oxygen Vacancies Forming P-CoMoO4/Co(OH)2 Heterostructure Boosting Electrocatalytic Nitrate Reduction to Ammonia DOI
Yang You, Huilin Chen, Jiangyi Guo

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: unknown, P. 124837 - 124837

Published: Nov. 1, 2024

Language: Английский

Citations

4
Functional Modification of Dawson‐Type Arsenomolybdate for Enhanced Ultracapacitor Performance and Nitrate‐to‐Ammonia Production DOI Open Access

Biming Shi,

Yuwen Wang, Meilin Wang

et al.

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

Published: Jan. 16, 2025

Abstract Polyoxometalates (POMs) are promising electrocatalysts and pseudo‐capacitive materials due to their reversible multi‐electron redox properties. In this study, Dawson‐type mono‐arsenic‐capped arsenomolybdate anchored into channels of {Cu(trz) 2 } 7 metal–organic network yielding a solution‐stable host‐guest structure, [{Cu I (trz) {As III As V Mo 4 VI 14 O 62 }] ·3H ( ), which exhibits higher conductivity specific capacity, excellent rate performance cycle stability than (biz) 9 (Hbiz) 3 1.5 18 ·2H 1 ) most reported POMs, ascribing the Faraday properties conductive network, advantages structure in surface area stability. The AC// ‐CPE device demonstrates energy density power 25.45 Wh kg −1 1991.53 W , 92.4% capacity retention after 10 000 cycles. Moreover, compound as nitrate reduction reaction (NO₃RR) electrocatalyst achieves current 150 mA cm −2 at −0.5 V, ammonia production 15.28 mg h Faradaic efficiency up 90%. Density functional theory is employed thoroughly investigate adsorption active sites detailed energetic steps corresponding overall pathway NO RR regulated by . This study reveals that encapsulating POMs clusters can increase sites, improve stability, conductivity, thereby enhancing storage catalytic activity molecular level.

Language: Английский

Citations

0
One-step hydrothermal synthesis of oxygen vacancy-rich Boron-added Cu2Mn3O8/CeS2 in-situ grown on nickel foam as an electrocatalyst for efficient nitrogen reduction DOI

Abambagade Abera Mitiku,

Merga Hailemariam Urgesa,

Quoc‐Nam Ha

et al.

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 180006 - 180006

Published: March 1, 2025

Language: Английский

Citations

0
Conjugated Cobalt Porphyrin Polymer for Highly Active and Selective Electrocatalytic Nitrite Reduction to Ammonia DOI
Lisi Xie,

Benxing Mei,

Yabo Wang

et al.

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

Published: April 15, 2025

Abstract Electrocatalytic nitrite (NO 2 − ) reduction RR) to ammonia (NH 3 is a promising green technology for producing NH with high efficiency. Cobalt macrocyclic complexes have attracted great interest because of their ability selectively convert NO , but suffer from low yields. Herein, cobalt porphyrin conjugated polymer on carbon nanotubes (CoPCOP@CNT) reported display exceptional RR performance large yield 133.39 mg h −1 CoP at −1.0 V and Faradaic efficiency (FE) 98.0% −0.8 V. Utilizing CoPCOP@CNT as the catalyst cathode, Zn‐NO battery exhibits remarkable power density (5.34 mW cm −2 ), open‐circuit voltage (≈1.45 V), FE (94.6%), (29.15 ). The active intermediates reaction pathways CoPCOP in process are revealed by differential electrochemical mass spectroscopy theory calculations. This work highlights potential electrocatalysts based metal porphyrins conversion nitrogenous pollutant into .

Language: Английский

Citations

0
Hierarchical porous CuFe-MOF nanostructures as dual electrocatalyst for hydrogen evolution reaction and nitrate reduction reaction DOI

Dasari Sai Hemanth Kumar,

Manzoor Ahmad Pandit,

Vinay Kumar Kolakaluri

et al.

Journal of Environmental Sciences, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Language: Английский

Citations

0
High‐Efficiency Electrocatalytic Conversion of Nitrite to Ammonia Using Nickel Phthalocyanine DOI

Amal Gain,

Parnab Bhabak,

S. Bhowmick

et al.

Chemistry - An Asian Journal, Journal Year: 2025, Volume and Issue: unknown

Published: April 30, 2025

Nitrite (NO2 -) is a dangerous pollutant that often found in groundwater sources and endangers human health. In addition to nitrite removal requirements, electrocatalytic reduction reaction (eNO2RR) holds promise for value-added ammonia (NH3) production at room temperature. this study, solvothermal technique the preparation of nickel phthalocyanine (NiPc) used as highly active electrocatalyst conversion NO2 - NH3 under ambient conditions. The NiPc catalyst shows remarkable Faradaic efficiency (FE) 90.1% -0.9 V versus RHE with maximum yield rate 14667 µg h-1 mgcat. -1 -1.0 0.1 M Na2SO4 containing NaNO2 solution. Furthermore, exhibits exceptional long-term stability during chronoamperometry tests. These findings boost future from sustainable development.

Language: Английский

Citations

0