Cu Embedded in Co–P Nanosheets with Super Wetting Structure for Accelerated Overall Water Splitting under Simulated Industrial Conditions DOI

Rongrong Deng,

Qibo Zhang

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(35)

Published: June 20, 2024

Abstract The development of advanced electrocatalysts with exceptional performance at high current densities is pivotal for reducing electric energy consumption in industrial water splitting hydrogen production. Herein, a flexible one‐step electrodeposition approach developed to synthesize superhydrophilic 3D flower‐like clusters Cu–Co–P nanosheets grown situ on nickel foam (NF). Introducing Cu into Co–P causes strong electron interactions, forming an electronic configuration favorable the adsorption and desorption intermediates, which significantly improves intrinsic catalytic activity. as‐deposited Cu–Co–P/NF display notable bifunctional activity low overpotentials 259 65 mV oxygen evolution reactions, respectively, 10 mA cm −2 . Superwetting nanostructures are conducive penetration electrolytes rapid release bubbles, enabling efficient utilization active sites timely bubble stress under densities. An assembled Cu–Co–P/NF(+, −) electrolyzer achieves impressive voltage 1.85 V 500 appreciable stability over 220 h simulated conditions. This work offers attractive strategy regulating superaerophobic splitting, can contribute practical applications.

Language: Английский

Membrane Electrode Assembly for Electrocatalytic CO2 Reduction: Principle and Application DOI
Zheng Zhang, Xin Huang, Zhou Chen

et al.

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(28)

Published: March 27, 2023

Abstract Electrocatalytic CO 2 reduction reaction (CO RR) in membrane electrode assembly (MEA) systems is a promising technology. Gaseous can be directly transported to the cathode catalyst layer, leading enhanced rate. Meanwhile, there no liquid electrolyte between and anode, which help improve energy efficiency of whole system. The remarkable progress achieved recently points out way realize industrially relevant performance. In this review, we focus on principles MEA for RR, focusing gas diffusion electrodes ion exchange membranes. Furthermore, anode processes beyond oxidation water are considered. Besides, voltage distribution scrutinized identify specific losses related individual components. We also summarize generation different reduced products together with corresponding catalysts. Finally, challenges opportunities highlighted future research.

Language: Английский

Citations

97
Recent Advances in Hybrid Seawater Electrolysis for Hydrogen Production DOI
Zhipeng Yu, Lifeng Liu

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(13)

Published: Dec. 24, 2023

Abstract Seawater electrolysis (SWE) is a promising and potentially cost‐effective approach to hydrogen production, considering that seawater vastly abundant SWE able combine with offshore renewables producing green hydrogen. However, has long been suffering from technical challenges including the high energy demand interference of chlorine chemistry, leading electrolyzers low efficiency short lifespan. In this context, hybrid SWE, operated by replacing energy‐demanding oxygen evolution reaction interfering (CER) thermodynamically more favorable anodic oxidation (AOR) or designing innovative electrolyzer cells, recently emerged as better alternative, which not only allows occur in safe energy‐saving manner without notorious CER, but also enables co‐production value‐added chemicals elimination environmental pollutants. This review provides first account recent advances for production. The substitutional AOR various small molecules redox mediators, couple seawater, comprehensively summarized. Moreover, how cell design helps briefly discussed. Last, current future outlook about development technology are outlined.

Language: Английский

Citations

79
Boosting Hydrogen Evolution by Methanol Oxidation Reaction on Ni-Based Electrocatalysts: From Fundamental Electrochemistry to Perspectives DOI
Junshan Li, Luming Li, Jun Wang

et al.

ACS Energy Letters, Journal Year: 2024, Volume and Issue: 9(3), P. 853 - 879

Published: Feb. 7, 2024

Hydrogen production via electrocatalytic water splitting is hampered by the slow kinetics of anodic oxygen evolution reaction (OER). To address this limitation, electrochemical hydrogen (HER) can be boosted with more favorable oxidation small organic molecules ideally driven renewable energies, producing valuable chemicals. In context, coupling methanol (MOR) simultaneous formate has garnered significant interest. Such a cost-effective process, meeting growing demand for energy storage and fuel production, requires developing cheap efficient electrocatalysts. Given knowledge gap between precious nonprecious metal electrocatalysts, exemplified nickel its derived compounds, review focuses on MOR from fundamental electrochemistry, materials design synthesis, activity-composition/structure relations. Despite advances, we still face formidable challenges in deciphering intricate catalytic mechanism, elevating activity selectivity to new heights, pioneering development scalable prototypes.

Language: Английский

Citations

77
Coupling NiSe2 Nanoparticles with N-Doped Porous Carbon Enables Efficient and Durable Electrocatalytic Hydrogen Evolution Reaction at pH Values Ranging from 0 to 14 DOI
Siqi He, Boyuan Chen, Chunfeng Meng

et al.

ACS Applied Nano Materials, Journal Year: 2023, Volume and Issue: 7(1), P. 1138 - 1145

Published: Dec. 20, 2023

Integrating metal-based species with a carbon matrix is promising approach for fabricating inexpensive, durable, and efficient electrocatalysts. Herein, NiSe2-decorated N-doped polyhedra (NC) are prepared as electrocatalysts hydrogen evolution reaction (HER) by template-assisted approach. The optimal NC-NiSe2 delivers extraordinary catalytic activities toward HER in wide pH range, overpotentials of 127 mV 0.5 M H2SO4, 226 1 PBS, 205 KOH to drive current density 10 mA cm–2. In addition, this catalyst undergoes fast kinetics via Volmer–Heyrovsky mechanism exhibits excelent long-term durability 48 h the full media. During electrocatalysis, when electrons pass through NC surface NiSe2 particles, water molecules at active sites reduced, then released. excellent activity mainly benefit from hierarchically porous architecture well synergistic interaction nanoparticles matrix, which not only significantly boost electronic conductivity generate plentiful but also guarantee chemical structural stabilities species. This work unravels deep insights into exploration carbon-supported metal chalcogenides highly full-pH values.

Language: Английский

Citations

76
Recent advances in cathode catalyst architecture for lithium–oxygen batteries DOI Creative Commons
Yin Zhou, Shaojun Guo

eScience, Journal Year: 2023, Volume and Issue: 3(4), P. 100123 - 100123

Published: March 25, 2023

Lithium–oxygen (Li–O2) batteries have great potential for applications in electric devices and vehicles due to their high theoretical energy density of 3500 ​Wh kg−1. Unfortunately, practical use is seriously limited by the sluggish decomposition insulating Li2O2, leading OER overpotentials cathodes electrolytes. Cathode electrocatalysts with oxygen reduction reaction (ORR) evolution (OER) activities are critical alleviate charge promote cycling stability Li–O2 batteries. However, constructing catalysts performance efficiency always challenging. In this mini-review, we first outline employment advanced such as carbon materials, noble non-noble metals, metal–organic frameworks improve battery performance. We then detail ORR mechanisms photo-assisted single-atom superior Finally, offer perspectives on future development directions cathode that will boost kinetics.

Language: Английский

Citations

74
Electrocatalytic oxidation of 5‐hydroxymethylfurfural for sustainable 2,5‐furandicarboxylic acid production—From mechanism to catalysts design DOI Creative Commons
Xiaoli Jiang, Wei Li, Yanxia Liu

et al.

SusMat, Journal Year: 2023, Volume and Issue: 3(1), P. 21 - 43

Published: Jan. 16, 2023

Abstract Catalytic conversion of biomass‐based platform chemicals is one the significant approaches to utilize renewable biomass resources. 2,5‐Furandicarboxylic acid (FDCA), obtained by an electrocatalytic oxidation 5‐hydroxymethylfurfural (HMF), has attracted extensive attention due potential replacing terephthalic synthesize high‐performance polymeric materials for commercialization. In present work, pH‐dependent reaction pathways and factors influencing degree functional group are first discussed. Then mechanism HMF further elucidated using representative examples. addition, emerging catalyst design strategies (defects, interface engineering) used in generalized, structure–activity relationships between abovementioned catalysts performance analyzed. Furthermore, cathode pairing reactions, such as hydrogen evolution reaction, CO 2 reduction (CO RR), oxygen thermodynamically favorable organic reactions lower cell voltage electrolysis system, Finally, challenges prospects electrochemical FDCA presented, focusing on deeply investigated mechanism, coupling reactor design, downstream product separation/purification.

Language: Английский

Citations

67
Potential Alignment in Tandem Catalysts Enhances CO2-to-C2H4 Conversion Efficiencies DOI Creative Commons
Min Liu, Qiyou Wang, Tao Luo

et al.

Journal of the American Chemical Society, Journal Year: 2023, Volume and Issue: 146(1), P. 468 - 475

Published: Dec. 27, 2023

The in-tandem catalyst holds great promise for addressing the limitation of low *CO coverage on Cu-based materials selective C2H4 generation during CO2 electroreduction. However, potential mismatch between CO-formation and favorable C–C coupling Cu represents a bottleneck in these types electrocatalysts, resulting tandem efficiencies. In this study, we propose robust solution to problem by introducing wide-CO generation-potential window nickel single atom (Ni SAC) supported catalyst. selection Ni SAC was based theoretical calculations, its excellent performance further confirmed using situ IR spectroscopy. facilitated carbon dimerization our led ∼370 mA/cm2 partial current density C2H4, corresponding faradic efficiency ∼62%. This remained stable consistent at least ∼14 h high 500 flow-cell reactor, outperforming most catalysts reported so far.

Language: Английский

Citations

66
Interfacial oxygen vacancy modulated Ag3PO4 @MoS2 Z-scheme system for efficient photocatalytic hydrogen recovery from antibiotic wastewater DOI
Shuqu Zhang,

Guanghua Hu,

Meixue Chen

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2023, Volume and Issue: 330, P. 122584 - 122584

Published: March 6, 2023

Language: Английский

Citations

65
Electrocatalytic synthesis of C–N coupling compounds from CO2 and nitrogenous species DOI Creative Commons
Zheng Zhang, Danyang Li, Yunchuan Tu

et al.

SusMat, Journal Year: 2024, Volume and Issue: 4(2)

Published: March 12, 2024

Abstract The electrocatalytic synthesis of C–N coupling compounds from CO 2 and nitrogenous species not only offers an effective avenue to achieve carbon neutrality reduce environmental pollution, but also establishes a route synthesize valuable chemicals, such as urea, amide, amine. This innovative approach expands the application range product categories beyond simple carbonaceous in reduction, which is becoming rapidly advancing field. review summarizes research progress urea synthesis, using N , NO − 3 species, explores emerging trends electrosynthesis amide amine nitrogen species. Additionally, future opportunities this field are highlighted, including amino acids other containing bonds, anodic reactions water oxidation, catalytic mechanism corresponding reactions. critical captures insights aimed at accelerating development electrochemical reactions, confirming superiority method over traditional techniques.

Language: Английский

Citations

49
Electrochemical Oxidation of Small Molecules for Energy‐Saving Hydrogen Production DOI
Hainan Sun, Xiaomin Xu, Liangshuang Fei

et al.

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(30)

Published: May 27, 2024

Abstract Electrochemical water splitting is a promising technique for the production of high‐purity hydrogen. Substituting slow anodic oxygen evolution reaction with an oxidation that thermodynamically more favorable enables energy‐efficient Moreover, this approach facilitates degradation environmental pollutants and synthesis value‐added chemicals through rational selection small molecules as substrates. Strategies small‐molecule electrocatalyst design are critical to electrocatalytic performance, focus on achieving high current density, selectivity, Faradaic efficiency, operational durability. This perspective discusses key factors required further advancement, including technoeconomic analysis, new reactor system design, meeting requirements industrial applications, bridging gap between fundamental research practical product detection separation. aims advance development hybrid electrolysis applications.

Language: Английский

Citations

43