Customizing the water-scarce, zinc ion-rich Helmholtz plane of a zinc anode for Ah-scale Zn metal batteries

Energy & Environmental Science, Год журнала: 2024, Номер 17(20), С. 7850 - 7859

Опубликована: Янв. 1, 2024

By constructing a hydrogel film doped with an ionic liquid on Zn anode, water-scarce inner Helmholtz plane and ion-enriched outer is developed, which effectively enables stable zinc anode for Ah-scale metal batteries.

Язык: Английский

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Synergy of Photogenerated Electrons and Holes toward Efficient Photocatalytic Urea Synthesis from CO₂ and N₂

Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(32)

Опубликована: Июнь 3, 2024

Abstract Directly coupling N 2 and CO to synthesize urea by photocatalysis paves a sustainable route for synthesis, but its performance is limited the competition of photogenerated electrons between , as well underutilized holes. Herein, we report an efficient synthesis process involving holes in respectively converting over redox heterojunction consisting WO 3 Ni single‐atom‐decorated CdS (Ni 1 ‐CdS/WO ). For photocatalytic from pure water, attained yield rate 78 μM h −1 apparent quantum 0.15 % at 385 nm, which ranked among best reported. Mechanistic studies reveal that was converted into NO species ⋅OH radicals generated component, meanwhile, transformed *CO site electrons. The were further coupled form *OCNO intermediate, then gradually urea. This work emphasizes importance reasonably utilizing reduction reactions.

Язык: Английский

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Pt_1.8Pd_0.2CuGa Intermetallic Nanocatalysts with Enhanced Methanol Oxidation Performance for Efficient Hybrid Seawater Electrolysis

Advanced Materials, Год журнала: 2024, Номер 36(31)

Опубликована: Май 14, 2024

Seawater electrolysis is a potentially cost-effective approach to green hydrogen production, but it currently faces substantial challenges for its high energy consumption and the interference of chlorine evolution reaction (ClER). Replacing energy-demanding oxygen with methanol oxidation (MOR) represents promising alternative, as MOR occurs at significantly low anodic potential, which cannot only reduce voltage needed also completely circumvents ClER. To this end, developing high-performance catalysts key. Herein, novel quaternary Pt

Язык: Английский

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Selective electrocatalytic synthesis of urea using entangled iron porphyrins in covalent organic frameworks

Nature Synthesis, Год журнала: 2025, Номер unknown

Опубликована: Фев. 21, 2025

Язык: Английский

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Multifunctional Strategies of Advanced Electrocatalysts for Efficient Urea Synthesis

Advanced Materials, Год журнала: 2024, Номер unknown

Опубликована: Окт. 20, 2024

The electrochemical reduction of nitrogenous species (such as N

Язык: Английский

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Phosphorous Incorporated PtNi Networks with Synergistic Directional Electron Transfer for Efficient and Durable Seawater Hydrogen Production

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Дек. 1, 2024

Abstract The abundant chloride ions in seawater, which poison and corrode electrode materials, are the main reason for low performance of Pt‐based catalysts toward hydrogen evolution reaction (HER) seawater. Coupling Pt with oxophilic transition metals can enhance activity electrocatalysts, but their long‐term stability is still unsatisfactory. Herein, a small number phosphorous atoms (from 1.2 to 5.9 at%) precisely incorporated into PtNi networks (P‐PtNi networks) via facile aqueous reduction strategy at room temperature. Experimental measurements theoretical calculations prove that P incorporation leads synergistic directional electron transfer from Ni Pt, resulting improved water dissociation kinetics, enhanced Cl – resistance facilitated adsorption. Consequently, P‐PtNi exhibit outstanding HER activities lower overpotential 37 mV 10 mA cm −2 an 8.5‐fold higher mass –0.07 V compared commercial Pt/C only slightly lowered potential after 120 h testing alkaline simulated Furthermore, show ultrahigh solar‐to‐hydrogen efficiency 15.2% solar cell‐driven production This work sheds new lights on design high‐performance nanomaterials practical applications seawater production.

Язык: Английский

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Advanced systems for enhanced CO₂ electroreduction

Chemical Society Reviews, Год журнала: 2024, Номер unknown

Опубликована: Дек. 4, 2024

This review explores the latest developments in CO 2 electroreduction based systems, including coupling reaction co-reduction cascade and integrated capture conversion systems.

Язык: Английский

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Unraveling the Stability Mechanism of Ru‐Based High‐Entropy Oxides for Oxygen Evolution Reactions by the First‐Principles Method

Advanced Theory and Simulations, Год журнала: 2025, Номер unknown

Опубликована: Май 14, 2025

Abstract It has been experimentally reported that Ru‐based high‐entropy oxides (Ru‐HEO) exhibit higher stability and durability in acidic oxygen evolution reaction (OER) compared to RuO 2 . However, the underlying mechanism remains unclear. Herein, surface states of Ru‐HEO are first studied as a function applied potential pH elucidate poisoning or oxidation Ru active sites under OER electrocatalytic conditions. Subsequently, formation energies vacancies on various calculated, which typically associated with structural instability due lattice mechanism. The results indicate presence metal atoms strengthens Ru─O bond, possibly contributing long‐term catalysts. This work provides insights into origin by comparison

Язык: Английский

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Advances in the Structure–Activity Relationship of Electrocatalytic C–N Coupling: From Nanocatalysis to Single Metal Site Catalysis

ACS Nano, Год журнала: 2025, Номер unknown

Опубликована: Май 14, 2025

C-N coupling is crucial for constructing amides and amines involves various fields, including medicine, chemical industries, agriculture, energy. With the rapid development of electrocatalytic continuous improvement catalytic performance, this field has aroused extensive research interest. A comprehensive review urgently needed to summarize structure-activity relationship, key challenges, future directions. This provides a concise overview recent advancements from nanocatalysis single metal site catalysis reactions. We mechanisms using different nitrogen sources further analyze influences active centers coordination environments on thereby elucidating relationship. Moreover, we discuss dynamic structural evolution sites during reaction. Finally, present current challenges perspectives in field. aims provide valuable insights into advanced nano/single catalysts reactions along with deeper understanding mechanisms.

Язык: Английский

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Spin Manipulation of Co sites in Co₉S₈/Nb₂CT_x Mott–Schottky Heterojunction for Boosting the Electrocatalytic Nitrogen Reduction Reaction

Advanced Science, Год журнала: 2024, Номер unknown

Опубликована: Сен. 3, 2024

Abstract Regulating the adsorption of an intermediate on electrocatalyst by manipulating electron spin state transition metal is great significance for promoting activation inert nitrogen molecules (N 2 ) during electrocatalytic reduction reaction (eNRR). However, achieving this remains challenging. Herein, a novel 2D/2D Mott–Schottky heterojunction, Co 9 S 8 /Nb CT x ‐P, developed as eNRR catalyst. This achieved through in situ growth cobalt sulfide (Co nanosheets over Nb MXene using solution plasma modification method. Transformation from low (t 2g 6 e g 1 to high 5 adjusting interface electronic structure and sulfur vacancy ‐P. The ability N optimized Co(II) with more unpaired electrons, significantly accelerating *N →*NNH kinetic process. ‐P exhibits NH 3 yield 62.62 µg h −1 mg cat. Faradaic efficiency (FE) 30.33% at −0.40 V versus reversible hydrogen electrode (RHE) 0.1 m HCl. Additionally, it achieves 41.47 FE 23.19% −0.60 RHE Na SO 4 . work demonstrates promising strategy constructing heterojunction electrocatalysts efficient eNRR.

Язык: Английский

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