Electron Beam Irradiation-Induced Defects Enhance Pt-TiO2 Photothermal Catalytic Degradation in PAEs: A Performance and Mechanism Study DOI Creative Commons
Fukun Bi,

Yaofei Zhang,

Zhuoxuan Zhou

et al.

Molecules, Journal Year: 2025, Volume and Issue: 30(3), P. 697 - 697

Published: Feb. 5, 2025

Phthalic acid esters (PAEs), ubiquitous semi-volatile organic compounds (SVOCs) in indoor environments, pose adverse effects on human health. However, their degradation mechanisms and pathways remain unclear. Herein, we developed an efficient photothermal catalyst by introducing defects (oxygen vacancies, OVs) TiO2 (P25) surfaces via electron beam irradiation technology with different doses (100, 300, 500, 700 kGy). The was employed as a support to prepare Pt-TiO2 catalysts for the of di (2-ethylhexyl) phthalate (DEMP) dimethyl (DMP), two representative PAEs. pre-treated 300 kGy dose supported Pt (Pt-Ti-P-300) presented optimal catalytic performance DEMP DMP degradation. Characterization results confirmed that OVs were successfully introduced catalysts. Meanwhile, induced expanded light absorption range improved generation separation photogenerated carriers, which significantly enhanced activity PAE Importantly, mechanism pathway further explored using situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) gas chromatography–mass spectrometry (GC-MS). These findings provide important insights into irradiation-mediated regulation removal PAEs environments.

Language: Английский

Innovative Electrochemical Strategies for Hydrogen Production: From Electricity Input to Electricity Output DOI Creative Commons
Dafeng Yan, Chalachew Mebrahtu, Shuangyin Wang

et al.

Angewandte Chemie International Edition, Journal Year: 2022, Volume and Issue: 62(16)

Published: Nov. 28, 2022

Renewable H2 production by water electrolysis has attracted much attention due to its numerous advantages. However, the energy consumption of conventional is high and mainly driven kinetically inert anodic oxygen evolution reaction. An alternative approach coupling different half-cell reactions use redox mediators. In this review, we, therefore, summarize latest findings on innovative electrochemical strategies for production. First, we address mediators utilized in splitting, including soluble insoluble species, corresponding cell concepts. Second, discuss involving organic inorganic chemical transformations. Then, at both cathode anode, or even together with electricity generation, presented. Finally, remaining challenges prospects future development research field are highlighted.

Language: Английский

Citations

108
Lattice oxygen activation and local electric field enhancement by co-doping Fe and F in CoO nanoneedle arrays for industrial electrocatalytic water oxidation DOI Creative Commons
Pengcheng Ye,

K. Fang,

Haiyan Wang

et al.

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Feb. 3, 2024

Abstract Oxygen evolution reaction (OER) is critical to renewable energy conversion technologies, but the structure-activity relationships and underlying catalytic mechanisms in catalysts are not fully understood. We herein demonstrate a strategy promote OER with simultaneously achieved lattice oxygen activation enhanced local electric field by dual doping of cations anions. Rough arrays Fe F co-doped CoO nanoneedles constructed, low overpotential 277 mV at 500 mA cm −2 achieved. The dually doped could cooperatively tailor electronic properties CoO, leading improved metal-oxygen covalency stimulated activation. Particularly, induces synergetic effect tip enhancement proximity effect, which effectively concentrates OH − ions, optimizes barrier promotes O 2 desorption. This work demonstrates conceptual couple for effective electrocatalytic water oxidation.

Language: Английский

Citations

104
Advanced electrocatalysts with unusual active sites for electrochemical water splitting DOI Creative Commons
Hainan Sun, Xiaomin Xu, Hyunseung Kim

et al.

InfoMat, Journal Year: 2023, Volume and Issue: 6(1)

Published: Nov. 27, 2023

Abstract Electrochemical water splitting represents a promising technology for green hydrogen production. To design advanced electrocatalysts, it is crucial to identify their active sites and interpret the relationship between structures performance. Materials extensively studied as electrocatalysts include noble‐metal‐based (e.g., Ru, Ir, Pt) non‐noble‐metal‐based 3d transition metals) compounds. Recently, advancements in characterization techniques theoretical calculations have revealed novel unusual sites. The present review highlights latest achievements discovery identification of various unconventional electrochemical splitting, with focus on state‐of‐the‐art strategies determining true establishing structure–activity relationships. Furthermore, we discuss remaining challenges future perspectives development next‐generation By presenting fresh perspective reaction involved this aims provide valuable guidance study industrial applications. image

Language: Английский

Citations

95
Metastabilizing the Ruthenium Clusters by Interfacial Oxygen Vacancies for Boosted Water Splitting Electrocatalysis DOI
Ya Chen, Yaoda Liu, Wenfang Zhai

et al.

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(21)

Published: Feb. 2, 2024

Abstract Metal–support interaction (MSI) is witnessed as an essential manner to stabilize active metals and tune catalytic activity for heterogonous water splitting. Kinetically driving the electrolysis (WE) appeals a rational MSI system with coupled electron‐donating/accepting (e‐D/A) characters hydrogen/oxygen evolution reactions (HER/OER). However, metal stabilization effect by will in turn restrict deblocking of e‐D/A properties challenge full electrocatalytic optimization. This study profiles heterostructure featuring metastable Ru clusters on defective NiFe hydroxide (Ru/d‐NiFe LDH) support low‐precious (≈2 wt%) platform efficient WE. It indicated that interfacial oxygen vacancies can deviate stable 4d 5 orbit 2+δ state, regulate d‐band center levels toward facilitated HER/OER processes. Resultantly, Ru/d‐NiFe LDH attains ultralow overpotentials at 10 mA cm −2 Pt‐beyond alkaline HER (18 mV) OER (220 fast kinetics durability. The symmetrical electrolyzer delivers promising voltage 1.49 V 1 m KOH seawater splitting performance. work carries interesting opportunities rationalizing sophisticated metal‐support electrocatalysts through metal‐site metastabilization engineering.

Language: Английский

Citations

90
Recent advanced freestanding pseudocapacitive electrodes for efficient capacitive deionization DOI
Ming Gao, Zhiqian Yang,

Wencui Liang

et al.

Separation and Purification Technology, Journal Year: 2023, Volume and Issue: 324, P. 124577 - 124577

Published: July 11, 2023

Language: Английский

Citations

67
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

63
The mechanism of water oxidation using transition metal-based heterogeneous electrocatalysts DOI
Shujiao Yang, Xiaohan Liu, Sisi Li

et al.

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(11), P. 5593 - 5625

Published: Jan. 1, 2024

The oxygen evolution reaction (OER) mechanisms using transition metal-based electrocatalysts are instrumental in providing novel insights into both natural and artificial energy conversion processes.

Language: Английский

Citations

63
Intensifying the Supported Ruthenium Metallic Bond to Boost the Interfacial Hydrogen Spillover Toward pH‐Universal Hydrogen Evolution Catalysis DOI
Ya Chen, Yaoda Liu, Lei Li

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(28)

Published: March 29, 2024

Abstract The effectuation of pH‐universal electrocatalysis is highly attractive but still challenging for the hydrogen evolution reaction (HER). It appeals not only facilitated electron transport also kinetical proton mass transfer. In this study, a via‐hole Ru/MoO 2 confined heterostructure profiled as metal‐support platform electron/mass transfer‐boosted HER studies. indicated that as‐formed Ru─O─Mo bridge can modulate electronic at interface, and adsorption transfer are kinetically derived by intensified metallic Ru─Ru bond. Resultantly, stably attains Pt‐beyond activity with an ultralow overpotential 9.2 mV 10 mA cm −2 in 1 m KOH, achieves competitive stability acidic/neutral electrolytes. Both experimental computational results reveal accelerated kinetics attributable to intensive through interfacial Ru→MoO spillover effect. This work opens up opportunities rationalize advanced electrocatalysts effect bond engineering.

Language: Английский

Citations

58
A Comprehensive Review on the Boosted Effects of Anion Vacancy in the Heterogeneous Photocatalytic Degradation, Part II: Focus on Oxygen Vacancy DOI Creative Commons

Mahdieh Rezaei,

Alireza Nezamzadeh–Ejhieh, Ahmad Reza Massah

et al.

ACS Omega, Journal Year: 2024, Volume and Issue: 9(6), P. 6093 - 6127

Published: Feb. 5, 2024

Environmental problems, including the increasingly polluted water and energy crisis, have led to a need propose novel strategies/methodologies contribute sustainable progress enhance human well-being. For these goals, heterogeneous semiconducting-based photocatalysis is introduced as green, eco-friendly, cost-effective, effective strategy. The introduction of anion vacancies in semiconductors has been well-known an strategy for considerably enhancing photocatalytic activity such systems, giving them advantages promoting light harvesting, facilitating photogenerated electron-hole pair separation, optimizing electronic structure, yield reactive radicals. This Review will introduce effects vacancy-dominated photodegradation systems. Then, their mechanism illustrate how vacancy changes pathway degradation efficiency toward pollutants overall performance. Specifically, defect types methods tailoring be briefly illustrated, this part focus on oxygen (OV) its recent advances. challenges development issues engineered defects photocatalysts also discussed practical applications provide promising research direction. Finally, some prospects emerging field proposed suggested. All permission numbers adopted figures from literature are summarized separate file Editor.

Language: Английский

Citations

54
Advances and challenges in the electrochemical reduction of carbon dioxide DOI Creative Commons

Jingyi Han,

Xue Bai,

Xiaoqin Xu

et al.

Chemical Science, Journal Year: 2024, Volume and Issue: 15(21), P. 7870 - 7907

Published: Jan. 1, 2024

This review highlights the structure–activity relationship of ECO 2 RR, provides a detailed summary advanced materials by analyzing electrocatalytic applications and reaction mechanisms, discusses challenges in both devices.

Language: Английский

Citations

48