Interfacial engineering of two-dimensional g-C3N4/graphene oxide heterojunctions from ball milling for photocatalytic reaction promotion

Applied Surface Science, Journal Year: 2025, Volume and Issue: unknown, P. 163152 - 163152

Published: April 1, 2025

Language: Английский

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Moderately Reconstructed Ternary Metal Nitride Nanoparticles for Highly Efficient and Robust Freshwater and Seawater Oxidation under Industrial Current Density

Small Structures, Journal Year: 2024, Volume and Issue: 5(8)

Published: March 29, 2024

Transition metal nitrides (TMNs) electrocatalysts experience rapid performance degradation during oxygen evolution reaction (OER) due to severe and irreversible electrochemical reconstruction, impeding their practical application in water splitting. To address this issue, ternary (Ni, Fe, Cr) nitride nanoparticles on spongy nitrogen‐doped disordered carbon skeleton electrocatalyst (NFCN/C) is synthesized using a novel one‐pot pyrolysis of eutectic mixture method. The ionomer‐free NFCN/C electrode, which undergoes moderate demonstrates high OER both alkaline freshwater seawater solutions, achieving current density 250 mA cm −2 with low overpotentials 349 364 mV, respectively. anode Pt/C cathode delivers 10 at cell voltage 1.49 V exhibits long‐term durability 450 h 500 . In situ Raman spectroscopy ultraviolet photoelectron (UPS), along pre‐ post‐characterizations, elucidate that electrocatalytic activity robustness for stem from the proposed intrinsic strategy integrating physical electronic structures. This work paves way designing highly efficient robust TMNs reconstruction industrial electrolysis.

Language: Английский

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Energy-saving hydrogen production from sulfion oxidation-hybrid seawater splitting enabled by superwettable corrosion-resistant NiFe layered double hydroxide/FeNi2S4 heterostructured nanoarrays

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 673, P. 607 - 615

Published: June 5, 2024

Language: Английский

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Surface Corrosion‐Resistant and Multi‐Scenario MoNiP Electrode for Efficient Industrial‐Scale Seawater Splitting

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

Published: Oct. 30, 2024

Abstract The construction of efficient and durable multifunctional electrodes for industrial‐scale hydrogen production presents a main challenge. Herein, molybdenum‐modulated phosphorus‐based catalytic (Mo‐NiP@NF) are prepared via mild electroless plating. Heteroatoms doping or heterostructures can reconfigure the intrinsic electronic structure pre‐catalyst optimizes key intermediates adsorption. Moreover, (hypo/meta‐)phosphite anions (PO x δ− ) molybdate ions (MoO on electrode surface Mo‐NiP@NF afford resistance to chloride (Cl − corrosion. exhibits ultralow overpotentials 278/550 282/590 mV at 1 A cm −2 during hydrogen/oxygen evolution reaction (HER/OER) in alkaline simulated real seawater, respectively, whereas overall seawater splitting (OWS) reach 1.96 1.97 V cell . Remarkably, maintains stable operation 1500 h OWS. scalability allowing assembly proton exchange membrane (PEM) electrolyzer powered by photovoltaic energy, simulating portable hydrogen‐oxygen respirator provides an oxygen/hydrogen flows 160/320 mL min −1 Expanding further, trace ruthenium‐loaded catalyst sodium borohydride (NaBH 4 hydrolysis achieving generation rate (HGR) 11049.2 g This work strategic innovations optimization solutions economical multi‐scenario green energy conversion materials application.

Language: Английский

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Achieving asymmetric redox chemistry for oxygen evolution reaction through strong metal-support interactions

Journal of Energy Chemistry, Journal Year: 2024, Volume and Issue: 96, P. 526 - 535

Published: May 21, 2024

Language: Английский

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