Enhanced Charge Carrier Dynamics on Sb2Se3 Photocathodes for Efficient Photoelectrochemical Nitrate Reduction to Ammonia DOI
Shijie Ren, Rui‐Ting Gao, Nhat Truong Nguyen

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(11)

Published: Jan. 16, 2024

Abstract Ammonia (NH 3 ) is recognized as a transportable carrier for renewable energy fuels. Photoelectrochemical nitrate reduction reaction (PEC NO RR) offers sustainable solution nitrate‐rich wastewater treatment by directly converting solar to ammonia. In this study, we demonstrate the highly selective PEC ammonia production from RR constructing CoCu/TiO 2 /Sb Se photocathode. The constructed photocathode achieves an Faraday efficiency (FE) of 88.01 % at −0.2 V RHE and yield high 15.91 μmol h −1 cm −2 −0.3 with excellent onset potential 0.43 . Dynamics experiments theoretical calculations have demonstrated that possesses light absorption capacity, transfer capability, charge separation efficiencies. can effectively adsorb reactant − intermediate, CoCu co‐catalyst increases maximum Gibbs free difference between HER. Meanwhile, Co species enhances spin density Cu, states near Fermi level in pdos, which results activity on This work provides new avenue feasibility efficient synthesis wastewater.

Language: Английский

Active Site Tailoring of Metal‐Organic Frameworks for Highly Efficient Oxygen Evolution DOI
Feng Hu, Deshuang Yu, Wen‐Jing Zeng

et al.

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(29)

Published: June 17, 2023

Abstract The direct correlation between active sites and catalytic activity in multiple‐component metal‐organic frameworks (MOFs) is key to understanding their mechanism of oxygen evolution reaction (OER) but remains vague. Herein, supported multiple‐site MOFs are adopted as model catalysts quantitatively study the composition‐dependent OER performance. Ni on Fe metal substrate possess highest intrinsic with Ni/Fe ratio 1:2 presence leaching during synthesis. Further introducing a proper amount Cu further boosts performance Cu‐doped NiFe an impressively low overpotential 200 mV at 10 mA cm −2 . Spectroscopic analysis theoretical indicates that copper doping within induces electron redistribution for high valence optimized balance OH/OOH adsorption decreased energy barrier improved OER. This work sheds light site tailoring which highly correlates activity.

Language: Английский

Citations

44

Merging Dual Antenna Effect with Target-Insensitive Behavior in Bimetal Biligand MOFs to Form Efficient Internal Reference Signal: Color Tonality-Ratiometric Designs DOI
Sameera Sh. Mohammed Ameen, Khalid M. Omer

ACS Materials Letters, Journal Year: 2024, Volume and Issue: 6(6), P. 2339 - 2349

Published: May 14, 2024

The construction of a highly luminescent, stable, and target-insensitive internal reference signal is significant in ratiometric color tonality applications. Improvement the antenna effect, efficient mechanism that enhances luminescence emission via sensitization, an effective route to obtain bright luminescence. Additionally, manipulation crystal structure morphology key issue control reactivity, especially metal–organic frameworks (MOFs). In present work, novel red emitter Eu/Zn bimetal biligand MOF (UoZ-5) was synthesized used as signal. A dual-antenna from triplet states (T1) ligands 5Do Eu3+ ion, observed explained on basis energy levels. With UoZ-5 serving reference, blue-emitting carbon quantum dots (CQDs) selective for Ag+ ions nonfluorescent composite, CQDs@Ag+, probe vitamin B1, tonality-based platform analysis were developed.

Language: Английский

Citations

35

Electrocatalytic water splitting: A review under the shade of metal-organic frameworks DOI
Rida Zahid, Muhammad Ramzan Abdul Karim, Muhammad Waqas Khan

et al.

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 57, P. 958 - 982

Published: Jan. 13, 2024

Language: Английский

Citations

23

Emerging MOFs, COFs, and their derivatives for energy and environmental applications DOI Creative Commons
Xinyue Zhang, Mengfan Yan,

Pei Chen

et al.

The Innovation, Journal Year: 2025, Volume and Issue: 6(2), P. 100778 - 100778

Published: Jan. 18, 2025

Traditional fossil fuels significantly contribute to energy supply, economic development, and advancements in science technology. However, prolonged extensive use of has resulted increasingly severe environmental pollution. Consequently, it is imperative develop new, clean, pollution-free sources with high density versatility as substitutes for conventional fuels, although this remains a considerable challenge. Simultaneously, addressing water pollution critical concern. The design, optimization functional nanomaterials are pivotal advancing new solutions pollutant remediation. Emerging porous framework materials such metal-organic frameworks (MOFs) covalent organic (COFs), recognized exemplary crystalline materials, exhibit potential applications due their specific surface area, adjustable pore sizes structures, permanent porosity, customizable functionalities. This work provides comprehensive systematic review the MOFs, COFs, derivatives emerging technologies, including oxygen reduction reaction, evolution hydrogen lithium-ion batteries, remediation carbon dioxide reaction management. In addition, strategies performance adjustment structure-effect relationships these explored. Interaction mechanisms summarized based on experimental discussions, theoretical calculations, advanced spectroscopy analyses. challenges, future prospects, opportunities tailoring presented.

Language: Английский

Citations

23

Enhanced Charge Carrier Dynamics on Sb2Se3 Photocathodes for Efficient Photoelectrochemical Nitrate Reduction to Ammonia DOI
Shijie Ren, Rui‐Ting Gao, Nhat Truong Nguyen

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(11)

Published: Jan. 16, 2024

Abstract Ammonia (NH 3 ) is recognized as a transportable carrier for renewable energy fuels. Photoelectrochemical nitrate reduction reaction (PEC NO RR) offers sustainable solution nitrate‐rich wastewater treatment by directly converting solar to ammonia. In this study, we demonstrate the highly selective PEC ammonia production from RR constructing CoCu/TiO 2 /Sb Se photocathode. The constructed photocathode achieves an Faraday efficiency (FE) of 88.01 % at −0.2 V RHE and yield high 15.91 μmol h −1 cm −2 −0.3 with excellent onset potential 0.43 . Dynamics experiments theoretical calculations have demonstrated that possesses light absorption capacity, transfer capability, charge separation efficiencies. can effectively adsorb reactant − intermediate, CoCu co‐catalyst increases maximum Gibbs free difference between HER. Meanwhile, Co species enhances spin density Cu, states near Fermi level in pdos, which results activity on This work provides new avenue feasibility efficient synthesis wastewater.

Language: Английский

Citations

21