Promoting Activation of N2 and H2o Via Dual Active Sites Synergistically for Efficient Photocatalytic Ammonia Synthesis DOI
Guanhua Zhang, Hao Du, Huimin Li

et al.

Published: Jan. 1, 2024

Language: Английский

Unveiling the Mechanism of Aerobic Photocatalytic Nitrogen Fixation over Dynamic Structural Renovation on Bi2MO6 (M = Mo, W) DOI
Xin Huang, Rui Du, Jingyu Ren

et al.

ACS Catalysis, Journal Year: 2024, Volume and Issue: 14(18), P. 13542 - 13549

Published: Aug. 28, 2024

The aerobic photocatalytic nitrogen reduction reaction (pNRR) is the synthesis of ammonia with air (N2/O2) instead a high-purity source, which can avoid use high-cost separation equipment, thus reducing production cost synthetic ammonia. Nevertheless, mechanism effect oxygen (O2) on structure and catalytic performance photocatalysts in pNRR still unclear. Herein, trace Bi0 loaded Bi2MO6 (M = Mo, W) was ingeniously synthesized by solvothermal strategy, demonstrated superior performance. elucidated quasi situ X-ray photoelectron spectroscopy, electron spin resonance density functional theory calculation. presence O2 inhibited formation excess competing for photogenerated electrons generating ·O2–, dynamically renovated catalyst. polarization dipole field induced an appropriate amount boosted photocarrier spatial separation/transfer pNRR.

Language: Английский

Citations

15
Green energy-driven ammonia production for sustainable development goals DOI
Yanbiao Shi, Hao Li,

Xupeng Liu

et al.

Chem, Journal Year: 2024, Volume and Issue: 10(9), P. 2636 - 2650

Published: July 16, 2024

Language: Английский

Citations

10
Surface-controlled oxygen vacancy-rich Bi/BiVO4 Schottky junction for highly selective and active photocatalytic nitrogen fixation DOI
Guanghua Xia,

Yue Meng,

Qiang Fu

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 498, P. 155849 - 155849

Published: Sept. 16, 2024

Language: Английский

Citations

10
High‐Entropy Oxychalcogenide for Hydrogen Spillover Enhanced Hydrogen Evolution Reaction in Proton and Anion Exchange Membrane Water Electrolyzers DOI Open Access
Seunghwan Jo, Ki-Hoon Shin,

Eunmin Kim

et al.

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

Published: Jan. 29, 2025

Abstract The hydrogen spillover phenomenon provides an expeditious reaction pathway via transfer from a strong H adsorption site to weak site, enabling cost‐efficient evolution (HER) analogous platinum with moderate energy. Here, high‐entropy oxychalcogenide (HEOC) comprising Co, Ni, Mo, W, O, Se, and Te is prepared by two‐step electrochemical deposition for spillover‐enhanced HER in acidic alkaline water electrolysis. anodic–cathodic reversal current enables the co‐deposition of cations aliovalent anions, facilitating glass structure multiple active sites spillover. HEOC exhibits low overpotentials 52 57 mV obtain density 10 mA cm −2 media, respectively, long‐term stability 500 h. analytical approaches elucidate toward Mo/W−O both acid HERs. Meanwhile, other act as or dissociation‐derived hydroxide sites, showing accommodable behavior media. practically high 1 A at cell voltages 1.78 1.89 V 100 h proton anion exchange membrane electrolyzers, respectively.

Language: Английский

Citations

1
Electron trap-induced charge accumulation and surface reaction kinetics synergistically enhance overall nitrogen photofixation DOI

Longjian Li,

Ping Zhang,

Yongchong Yu

et al.

Chinese Chemical Letters, Journal Year: 2025, Volume and Issue: unknown, P. 111118 - 111118

Published: March 1, 2025

Language: Английский

Citations

1
Palladium Married with MBene Multilayers: Enabling Intensified Hydrogen Spillover for Efficient Nitrite‐to‐Ammonia Electroreduction DOI
Jiayi Zhang, Qiaoshi Zeng, Xinzhi Wang

et al.

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

Published: April 8, 2025

Abstract Electrochemical nitrite reduction reaction (NO 2 RR) has emerged as a promising alternative approach for ammonia (NH 3 ) production, offering both energy efficiency and environmental sustainability. The rational regulation of active hydrogen (*H) is pivotal NO − ‐to‐NH conversion, yet it remains significant challenge in the context RR. In this study, molybdenum boride (MBene) multilayers are introduced an electronic support to integrate with palladium (Pd) nanoparticles, creating dual catalytic sites that effectively balance adsorption *H *NO , thereby enabling synergistic catalysis Theoretical experimental analyses revealed efficiently generated on Pd subsequently undergoes spillover ‐adsorbed MBene surfaces, facilitating accelerated hydrogenation NH synthesis. Consequently, Pd/MBene catalyst demonstrated exceptional performance, achieving high Faradaic 89%, yield rate 16.9 mg h −1 cat remarkable cycling stability at low applied potential ‐0.3 V versus RHE. Motivated by outstanding RR further utilized cathode construct Zn‐nitrite formaldehyde‐nitrite batteries. These systems functionality simultaneous production electricity generation, highlighting versatile efficient sustainable conversion.

Language: Английский

Citations

1
MXene-based 2D/2D Ti3C2/TiO2 heterojunction with spatially separated redox sites for efficient photocatalytic N2 reduction towards NH3 DOI
Chi Cao,

Jinshuo Li,

Linfeng Zhang

et al.

Journal of Material Science and Technology, Journal Year: 2024, Volume and Issue: 214, P. 180 - 193

Published: July 16, 2024

Language: Английский

Citations

8
MIL-101(Fe) supported Au-Cu nanoalloy for enhanced electrochemical nitrogen fixation in gas–liquid-solid three-phase reactor DOI

Pengju Guo,

Fengxiang Yin,

Ziyang Ni

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 494, P. 153134 - 153134

Published: June 14, 2024

Language: Английский

Citations

7
Constructing an Active Sulfur‐Vacancy‐Rich Surface for Selective *CH3‐CH3 Coupling in CO2‐to‐C2H6 Conversion With 92% Selectivity DOI Open Access

Xiaonan Yang,

Liteng Ren,

Zhiheng Chen

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 6, 2024

Abstract To achieve high selectivity in photocatalytic CO 2 reduction to C 2+ products, increasing the number of adsorption sites and lowering energy barriers for key intermediates are critical. A ZnIn S 4 (ZIS)/MoO 3‐x (Z‐M) photocatalyst is presented, which plasmonic MoO generates hot electrons, creating a multielectron environment ZIS that facilitates efficient C─C coupling reactions. Density functional theory (DFT) calculations reveal reduces formation sulfur vacancies (S V ) ZIS, thereby enhancing activation. The ‐rich surface lowers barrier forming HCOO * −0.33 eV whereas COOH 0.77 eV. Successive hydrogenation leads CH , converts 3 with an −0.63 ‐CH 0.54 eV, lower than 0.73 form H . Thus, Z‐M preferentially produces 6 over Under visible light, achieves ‐to‐C conversion rate 467.3 µmol g −1 h 92.0% selectivity. This work highlights dual role photocatalysts improving production reduction.

Language: Английский

Citations

4
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