Self-Reconstruction of Sulfate-Terminated Copper Oxide Nanorods for Efficient and Stable 5-Hydroxymethylfurfural Electrooxidation DOI
Ziyi Fan, Qianqian Yang, Wenjun Zhang

и другие.

Nano Letters, Год журнала: 2023, Номер 23(23), С. 11314 - 11322

Опубликована: Ноя. 29, 2023

The electrochemical 5-hydroxymethylfurfural oxidation reaction (HMFOR) has been regarded as a viable alternative to sustainable biomass valorization. However, the transformation of catalysts under harsh electrooxidation conditions remains controversial. Herein, we confirm self-construction cuprous sulfide nanosheets (Cu2S NSs) into sulfate-terminated copper oxide nanorods (CuO-SO42- NRs) during first-cycle HMFOR, which achieves near-quantitative synthesis 2,5-furandicarboxylic acid (FDCA) with >99.9% yield and faradaic efficiency without deactivation in 15 successive cycles. Electrochemical impedance spectroscopies that surface SO42- effectively reduces onset potential for while situ Raman identify reversible from CuII-O CuIII-OOH HMFOR. Furthermore, density functional theory calculations reveal weakens Cu-OH bonds CuOOH promote rate-determining step its coupling C atom HMF-H* resulting HMF hydrogenation, synergistically enhances catalytic activity CuO-SO42- NRs toward HMF-to-FDCA conversion.

Язык: Английский

Unlocking high-current-density nitrate reduction and formaldehyde oxidation synergy for scalable ammonia production and fixation DOI
Linjie Zhang, Yimeng Cai, Yanghua Li

и другие.

Energy & Environmental Science, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Single atom Ag-decorated Cu 2 O nanowires achieve two-ampere-level nitrate-to-ammonia conversion, facilitating further ammonia fixation into ammonium formate at 10 g-scale.

Язык: Английский

Процитировано

3
Balancing dynamic evolution of active sites for urea oxidation in practical scenarios DOI Creative Commons
Jichao Zhang, Jiexin Zhu, Liqun Kang

и другие.

Energy & Environmental Science, Год журнала: 2023, Номер 16(12), С. 6015 - 6025

Опубликована: Янв. 1, 2023

The role of single atomic Ru site for enhanced UOR performance.

Язык: Английский

Процитировано

43
Hierarchical Ohmic Contact Interface Engineering for Efficient Hydrazine‐Assisted Hydrogen Evolution Reaction DOI
Yifan Yang, Xuanyang Li, Guanglei Liu

и другие.

Advanced Materials, Год журнала: 2023, Номер 36(7)

Опубликована: Окт. 26, 2023

Abstract Hydrazine oxidation reaction coupled with hydrogen evolution (HER) is an effective strategy to achieve low energy water splitting for production. In order realize the application of hydrazine‐assisted HER system, researchers have been focusing on development electrocatalysts integrated dual active sites, while performance under high current density still unsatisfying. this work, hierarchical Ohmic contact interface engineering designed and used as a bridge between NiMo Ni 2 P heterojunction toward industrial applications, charge transfer impedance greatly eliminated via such pathway barrier. As proof‐of‐concept, importance redistribution barrier at investigated by significantly reducing voltage overall hydrazine (OHzS) density. Intriguingly, NiMo/Ni can drive densities 100 500 mA cm −2 only 181 343 mV cell in OHzS electrolyzer electrocatalytic stability. The proposed paves new avenue production consumption.

Язык: Английский

Процитировано

36
Mountain‐Shaped Nickel Nanostripes Enabled by Facet Engineering of Nickel Foam: A New Platform for High‐Current‐Density Water Splitting DOI
Hongfang Du, Tingfeng Wang, Song He

и другие.

Advanced Functional Materials, Год журнала: 2023, Номер 34(14)

Опубликована: Дек. 24, 2023

Abstract Electrocatalysts play a crucial role in hydrogen production via water splitting, yet their effectiveness is hampered by the bubble effect, particularly under high‐current‐density conditions. Herein, nickel foam with mountain‐shaped nanostripes (NFMN) developed as universal substrate for electrocatalysts to remove gas bubbles efficiently, ensuring high‐performance splitting. The NFMN fabricated through facet engineering of (NF) thiocyanate‐guided acid etching. Specifically, when immersed into an acidic thiocyanate solution, (220) plane NF preferentially adsorbed SCN − , protecting it, while (111) and (200) facets remain exposed are selectively etched acid. As etching proceeds parallelly direction, obtained. confer benefits superaerophobicity local circulation, allowing efficiently release bubbles. proof‐of‐concept application, employed novel support FeOOH anode Ni 2 P cathode prototype electrolyzer, which exhibits low cell voltage 1.847 V at large current density 500 mA cm −2 high stability. This work opens up new opportunities construct efficient substrates splitting beyond.

Язык: Английский

Процитировано

34
Self-Reconstruction of Sulfate-Terminated Copper Oxide Nanorods for Efficient and Stable 5-Hydroxymethylfurfural Electrooxidation DOI
Ziyi Fan, Qianqian Yang, Wenjun Zhang

и другие.

Nano Letters, Год журнала: 2023, Номер 23(23), С. 11314 - 11322

Опубликована: Ноя. 29, 2023

The electrochemical 5-hydroxymethylfurfural oxidation reaction (HMFOR) has been regarded as a viable alternative to sustainable biomass valorization. However, the transformation of catalysts under harsh electrooxidation conditions remains controversial. Herein, we confirm self-construction cuprous sulfide nanosheets (Cu2S NSs) into sulfate-terminated copper oxide nanorods (CuO-SO42- NRs) during first-cycle HMFOR, which achieves near-quantitative synthesis 2,5-furandicarboxylic acid (FDCA) with >99.9% yield and faradaic efficiency without deactivation in 15 successive cycles. Electrochemical impedance spectroscopies that surface SO42- effectively reduces onset potential for while situ Raman identify reversible from CuII-O CuIII-OOH HMFOR. Furthermore, density functional theory calculations reveal weakens Cu-OH bonds CuOOH promote rate-determining step its coupling C atom HMF-H* resulting HMF hydrogenation, synergistically enhances catalytic activity CuO-SO42- NRs toward HMF-to-FDCA conversion.

Язык: Английский

Процитировано

32