Huiyu Tian , Haifeng En , Bingwen Li , Jinxian Zhao
{"title":"Cu@C/SiO2 catalyst with tunable Cu+ species by sorbitol for the selective hydrogenation of dimethyl oxalate to methyl glycolate","authors":"Huiyu Tian , Haifeng En , Bingwen Li , Jinxian Zhao","doi":"10.1016/j.surfin.2024.105494","DOIUrl":"10.1016/j.surfin.2024.105494","url":null,"abstract":"<div><div>An efficient Cu@C/SiO<sub>2</sub> catalyst for the hydrogenation of dimethyl oxalate (DMO) to methyl glycolate (MG) was prepared by sorbitol-modified ammonia evaporation method followed by calcination in N<sub>2</sub>. The Cu@C/SiO<sub>2</sub> catalyst exhibited the superior catalytic activity and stability for DMO hydrogenation compared with the Cu/SiO<sub>2</sub> catalyst. The optimized Cu@C/SiO<sub>2</sub>–1/4 catalyst exhibited an MG yield of 63 % during 90 h long-term evaluation under temperature of 210 °C, pressure of 1.9 MPa, WHSV of 1.25 g<sub>DMO</sub>·g<sub>Cu</sub><sup>-1</sup>·h<sup>-1</sup> and H<sub>2</sub>/DMO of 150. The characterization results indicated that Cu dispersion can be significantly enhanced by the addition of an appropriate amount of sorbitol and the surface Cu<sup>0</sup> and Cu<sup>+</sup> species were effectively regulated by the amount of sorbitol. The catalytic activity of Cu@C/SiO<sub>2</sub> was linearly dependent on specific area of Cu<sup>+</sup> species under the sufficient specific area of Cu° for H<sub>2</sub> dissociation. In addition, the sorbitol–derived carbon species on the catalyst were also favorable for the enhanced stability owing to the suppression of Cu sintering.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"56 ","pages":"Article 105494"},"PeriodicalIF":5.7,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142721021","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xujie Liu , Qingshun Bai , Tingting Wang , Yuhai Li , Xueshi Xu , Siyu Gao
{"title":"Unraveling the mechanisms of organic contamination on gold pulse compression gratings: From cluster formation to stratified adsorption","authors":"Xujie Liu , Qingshun Bai , Tingting Wang , Yuhai Li , Xueshi Xu , Siyu Gao","doi":"10.1016/j.surfin.2024.105500","DOIUrl":"10.1016/j.surfin.2024.105500","url":null,"abstract":"<div><div>Organic contamination on gold pulse compression gratings significantly hampers the performance of high-power laser systems under intense laser irradiation. Investigating the adsorption mechanisms of organic contaminants on microstructured gratings is essential for addressing contamination issues and mitigating damage. In this article, we determine the microstructured surface aggregation characteristics of volatile dibutyl phthalate (DBP), the stratified distribution pattern of amorphous DBP clusters, and the distribution points of molecules within microstructures using experiments and cross-scale simulations (molecular dynamics and quantum chemistry). Our analysis of the Reduced Density Gradient (RDG) and charge transfer reveals that adsorption between organic molecules and the gold substrate primarily stems from non-covalent van der Waals and electrostatic forces induced by ester functional groups. Based on this theoretical study, we propose the \"molecule-substrate\" and \"bimolecular\" adsorption modes of DBP to elucidate the adsorption mechanisms. Investigating organic compounds' distribution and adsorption mechanisms on optical component surfaces is fundamental to high-power laser-induced damage studies. These insights facilitate the efficient, non-destructive removal of organic contaminants from gold gratings, enhancing the energy output threshold of inertial confinement fusion devices.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"56 ","pages":"Article 105500"},"PeriodicalIF":5.7,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142742922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Mesoporous Cu-doped ZSM-5 zeolite for efficient radical-mediated decarboxylative silylation","authors":"Jun-Qing Ye, Pin-Xi Wang, Xin Rong, Qi-Da Ding, Jun-Feng Qian, Sheng-Chun Chen, Ming-Yang He, Qun Chen","doi":"10.1016/j.surfin.2024.105492","DOIUrl":"10.1016/j.surfin.2024.105492","url":null,"abstract":"<div><div>Vinylsilane compounds are essential chemical feedstocks and intermediates in organic synthesis. A heterogeneous Cu-containing mesoporous ZSM-5 zeolite catalyst developed through an <em>in-situ</em> doping method can be used for preparing vinylsilane compounds <em>via</em> decarboxylative coupling with remarkable catalytic efficiency. The mesoporous structure along with the appropriate surface area and pore volume of the catalyst is likely to be responsible for facilitating mass transfer in the reaction process. Additionally, due to the suitable Brønsted and Lewis acid active sites, adsorption and activation of reactant molecules can be readily triggered to promote the generation of alkoxyl radicals, which is the crucial species to complete the catalytic cycle. Importantly, the transformation exhibits high efficiency, broad substrate scope, and good reusability for at least six cycles.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"56 ","pages":"Article 105492"},"PeriodicalIF":5.7,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142721024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Imran Hasan , Akshara Bassi , Parvathalu Kalakonda
{"title":"CuO surface functionalized β-cyclodextrin grafted PMMA hybrid nanocomposite for advance oxidative mineralization of methyl orange","authors":"Imran Hasan , Akshara Bassi , Parvathalu Kalakonda","doi":"10.1016/j.surfin.2024.105456","DOIUrl":"10.1016/j.surfin.2024.105456","url":null,"abstract":"<div><div>The present study emphasizes the synthesis of copper (II) oxide (CuO) surface grafted with β-cyclodextrin (β–CD) copolymerized polymethylmethacrylate (PMMA) through in situ free radical oxidative polymerization reaction. The synthesized material CDMA@CuO nanocomposite (NC) material was thoroughly characterized using a range of instrumental techniques, including Scanning Electron Microscopy with Energy Dispersive X-ray (SEM-EDX), X-ray Diffraction (XRD), Transmission Electron Microscopy with Selected Area Electron Diffraction (TEM-SAED), Fourier Transform Infrared Spectroscopy (FTIR), Zeta potential measurement, X-ray Photoelectron Spectroscopy (XPS) and UV–vis spectroscopy. These analyses offered comprehensive insights into the composition, structure, optical, and surface properties of the synthesized material. The CDMA@CuO NC material was then assessed as a photocatalyst for the degradation of methyl orange (MO) dye under sunlight exposure. Notably, the material demonstrated outstanding photocatalytic activity, achieving a 99.37 % photocatalytic efficiency with 20 mg L<sup>–1</sup> MO concentration at pH 4 under 90 min of UV light exposure. The trapping experiments confirmed the presence of hydroxyl radicals (<sup>•</sup>OH) as the primary reactive oxidant species responsible for MO photodegradation. The synthesized material exhibited efficient reusability for up to six consecutive cycles while maintaining its high photodegradation efficiency. These results emphasize the potential of the CDMA@CuO NC as a highly efficient and recyclable photocatalyst for the removal of organic contaminants, such as methyl orange from aqueous solutions.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"56 ","pages":"Article 105456"},"PeriodicalIF":5.7,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142721019","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Phonon engineering enabled reduction in thermal conductivity of SnS/Cu2Se composites: An experimental and numerical insights","authors":"Nivin Thulasibai Sasidharan , Vijay Vaiyapuri , Karvannan Elamurugan , Navaneethan Mani , Karthigeyan Annamalai","doi":"10.1016/j.surfin.2024.105488","DOIUrl":"10.1016/j.surfin.2024.105488","url":null,"abstract":"<div><div>SnS is a promising chalcogenide-based material that shows great potential for thermoelectric applications. Lattice thermal conductivity is the only independent parameter that can be modified without disrupting the complex relationship of parameters such as electrical conductivity and the Seebeck coefficient. Herein, Cu<sub>2</sub>Se x wt% (<em>x</em> = 1%, 3%, 5%, 7%) composited with SnS were synthesized by hydrothermal method. The addition of Cu<sub>2</sub>Se in SnS has resulted in a suppression of the intrinsic thermal conductivity from 0.891 W/mK to 0.447 W/mK for Cu<sub>2</sub>Se 5 wt% composited SnS at 753 K. Increasing Cu<sub>2</sub>Se% in the SnS matrix has led to decrease in crystallite size from 33 nm - 29 nm, while the dislocation density and microstrain showed an increasing trend. The different physical and microstructural factors were analysed to understand the influence on thermal conductivity using numerical techniques. Physical parameters like Cu<sub>2</sub>Se distribution, pelletizing temperature, pressure, volume fraction, and intrinsic material qualities are studied using effective thermal conductivity models and Maxwell Eurecken 2 shows the best fit. The Hasselman-Johnson model analyses interfacial thermal conductivity and shows an increasing trend from 0.31 × 10<sup>–6</sup> to 6.2 10<sup>–6</sup> m<sup>2</sup>K/W. In addition, the microstructural variables such as dislocations, stacking faults, and point defects are present in the samples. The phonon relaxation time for each mode of vibration determined using Raman spectroscopy also points towards the decrease in contribution from optical phonons by 30% from 7.71 × 10<sup>–13</sup> to 5.31 × 10<sup>–13</sup> s. The temperature-dependent and power-dependent Raman spectroscopy indicated lattice softening and anharmonic coupling leading to a red shift in the spectrum. A combination of optical and acoustic phonon contributions helped to reduce the thermal conductivity by about 50% for Cu<sub>2</sub>Se-composited SnS.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"56 ","pages":"Article 105488"},"PeriodicalIF":5.7,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142742925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Gouranga Maharana , Yuvashree Jayavelu , D. Paul Joseph , Reddivari Muniramaiah , S. Divyadharshini , Kovendhan Manavalan
{"title":"Photodegradation of mixed organic dyes and ciprofloxacin antibiotic using spray pyrolyzed Li-Nb co-doped SnO2 thin films","authors":"Gouranga Maharana , Yuvashree Jayavelu , D. Paul Joseph , Reddivari Muniramaiah , S. Divyadharshini , Kovendhan Manavalan","doi":"10.1016/j.surfin.2024.105489","DOIUrl":"10.1016/j.surfin.2024.105489","url":null,"abstract":"<div><div>Immobilized photocatalysts are emerging in prominence for photocatalytic degradation of various kinds of harmful pollutants. In order to tune SnO<sub>2</sub> thin films as an effective transparent conducting photoelectrode towards photocatalytic degradation, the effects of lithium and niobium co-doping are examined for their structural, morphological, and optoelectronic characteristics. X-ray diffraction patterns reveal successful doping of ‘Nb’ and ‘Li’ into the SnO<sub>2</sub> lattice rendering highly textured growth along (110), (200), (310), and (220) plane directions. X-ray photoelectron spectroscopy confirmed the charge states of Sn<sup>4+</sup>, Nb<sup>5+</sup>, O<sup>2-,</sup> and Li<sup>1+</sup> elements to be present in the co-doped SnO<sub>2</sub> films. FESEM micrographs reveal that the tetragonal shaped particles (0 - 1 wt.% Li doped Nb(2 wt.%):SnO<sub>2</sub>) undergo a mild agglomeration by forming more slender grains (2 - 4 wt.% Li doped Nb(2 wt.%):SnO<sub>2</sub>). The wettability nature by contact angle measurement indicates all the films to be hydrophilic in nature. Nb and Li codoping into the SnO<sub>2</sub> lattice enhances the transmittance from 53 % for pure to 72 % for 4 wt.% Li and 2 wt.% Nb codoped SnO<sub>2</sub> thin film. Photoluminescence emission intensity has been suppressed by the substitution of Nb and Li into the SnO<sub>2</sub> films. Linear four-probe and Hall effect revealed sheet resistance and electrical transport properties with a minimum sheet resistance of 56 Ω/□ and with highest mobility of 34.75 cm<sup>2</sup> V<sup>-1</sup>s<sup>-1</sup> for 4 wt. % Li and 2 wt.% Nb doped SnO<sub>2</sub> thin film, respectively. Based on the determined optoelectronic properties, the photocatalytic activity for solely methyl violet, mixed dyes (methyl orange, malachite green, and methylene blue), and ciprofloxacin antibiotic degradation was carried out using optimal film (1 wt.% Li: 2 wt.% Nb co-doped SnO<sub>2</sub>), and a significant degradation efficiency was achieved in both Sunlight and LED light illumination.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"56 ","pages":"Article 105489"},"PeriodicalIF":5.7,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142743542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"SiO2/Si interface defects in HKMG stack fabrication","authors":"Shota Nunomura , Yukinori Morita","doi":"10.1016/j.surfin.2024.105445","DOIUrl":"10.1016/j.surfin.2024.105445","url":null,"abstract":"<div><div>The defect generation and recovery near the silicon dioxide (SiO<sub>2</sub>)/silicon (Si) interface are studied throughout high-k dielectric/metal gate (HKMG) stack fabrication and post-processing. The HKMG stack is prepared on a Si wafer in a well-established manner, using chemical oxidation for an interfacial layer of SiO<sub>2</sub>, atomic layer deposition (ALD) for HK-hafnium oxide (HfO<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>), and magnetron sputtering for MG-tantalum nitride (TaN). The stack is then treated with additional processing of post-deposition annealing (PDA), oxygen (O<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>) plasma processing, and forming gas annealing (FGA) to imitate transistor manufacturing. Throughout these processing, the atomic-level defects near the SiO<sub>2</sub>/Si interface are characterized, with quasi-steady-state photoconductance (QSSPC) measurements. With the measurements, it is found that the defects near the SiO<sub>2</sub>/Si interface are generated by most of the processing of ALD-HfO<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>, sputter-TaN as well as PDA and O<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span> plasma, whereas those defects are recovered by the last step of FGA. Interestingly, the recovery of defects depends on the HKMG stack structure and processing; the recovery is highly limited for a thin stack treated with high-temperature PDA. In such a case, residual defects are created near the SiO<sub>2</sub>/Si interface.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"56 ","pages":"Article 105445"},"PeriodicalIF":5.7,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142707372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Qiming Sun , Zhe Yang , Xinyan Liu , Tianyi Zhang , Yiwei Zhao , Chao Zhang , Shuangxi Xing
{"title":"Ultrasonic-assisted strategy to enhance electrocatalytic performance of CoNi N-doped carbon catalyst in alkaline oxygen reduction reaction and zinc-air batteries","authors":"Qiming Sun , Zhe Yang , Xinyan Liu , Tianyi Zhang , Yiwei Zhao , Chao Zhang , Shuangxi Xing","doi":"10.1016/j.surfin.2024.105443","DOIUrl":"10.1016/j.surfin.2024.105443","url":null,"abstract":"<div><div>Transition metal nitrogen-doped carbon composite materials are promising candidates for electrocatalytic oxygen reduction reaction in alkaline media. Among the materials, Co-based N-doped carbon (Co-NC) catalysts attract significant attention owing to the appropriate adsorption energy of oxygen intermediates. Nevertheless, the achievement of Co-NC catalysts often suffers from serious agglomeration of cobalt sites under high-temperature pyrolysis, which greatly restricts the electrocatalytic performance of the catalysts. Therefore, increasing the active sites and the intrinsic activity of the catalysts, thus enhancing the oxygen reduction reaction activity remain a challenge. Herein, an ultrasound-assisted fabrication of zeolitic imidazole frameworks (ZIFs) doping strategy is developed to synthesize a cobalt, nickel and nitrogen co-doped carbon catalyst in oxygen electrocatalysis. The introduction of zinc and nickel domains during the synthesis process can avoid the metallic sites from agglomeration and promote the intrinsic activity of Co sites, respectively. In addition, three factors are modulated to control the intensity of the acoustic cavitation effect induced by ultrasound irradiation, including ultrasonic power, ultrasonic frequency and the surface tension of liquid media. The optimized ultrasonic conditions can regulate the pore structure of the carbon substrate, which is beneficial to expose the active sites and boost the mass transfer, thus enhancing the ORR activity maximally. Consequently, the obtained Co<sub>3</sub>Ni<sub>1</sub>-NC catalyst exhibits an outstanding onset potential at 0.928 V and a half-wave potential at 0.895 V and a power density at 122.73 mW cm<sup>-2</sup> in the zinc-air battery. This work demonstrates a reliable prospect for the relationship between the acoustic cavitation effect and the performance improvement of electrocatalysts.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"56 ","pages":"Article 105443"},"PeriodicalIF":5.7,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142707374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Mg and Cr doped ZnO nanoparticles for oxygen evaluation reaction","authors":"Bodicherla Naresh , T.V.M. Sreekanth , Kumcham Prasad , Kisoo Yoo , Jonghoon Kim","doi":"10.1016/j.surfin.2024.105437","DOIUrl":"10.1016/j.surfin.2024.105437","url":null,"abstract":"<div><div>This study introduces an innovative approach to developing low-cost materials for renewable energy technologies by synthesizing a novel series of zinc oxide (ZnO)-based nanoparticles, including chromium-doped zinc oxide (ZnO<img>Cr) and magnesium-chromium co-doped zinc oxide (ZnO<img>Cr-Mg), via the solution combustion method. The novelty of this work lies in the strategic co-doping of ZnO with both Cr and Mg, a combination not extensively explored in the field of electrocatalysis for Oxygen Evolution Reactions (OER). By leveraging this co-doping strategy, the structural, morphological, and electrocatalytic properties of the nanoparticles were systematically analyzed using techniques such as linear sweep voltammetry (LSV), cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and chronoamperometry (CA). Among the tested variants, ZnO<img>Cr-Mg:5 exhibited a significantly lower overpotential and superior stability, maintaining its catalytic performance over 18,000 s, thus outperforming traditional ZnO catalysts. These findings highlight the synergistic effects of Cr and Mg doping, showcasing ZnO<img>Cr-Mg:5 as a highly efficient and durable catalyst for OER, offering a novel and scalable solution for advancing sustainable energy technologies.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"56 ","pages":"Article 105437"},"PeriodicalIF":5.7,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142721022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xinyi Yun, Miao Hu, Yuqi Liu, Yuan Zhang, Sizhuo Xu, Xin Bo, Zenglin Wang, Yi Ma
{"title":"A ternary-structured NiCo-LDH/Ni/BiVO4 photoanode with enhanced charge dynamics for photoelectrochemical water splitting","authors":"Xinyi Yun, Miao Hu, Yuqi Liu, Yuan Zhang, Sizhuo Xu, Xin Bo, Zenglin Wang, Yi Ma","doi":"10.1016/j.surfin.2024.105444","DOIUrl":"10.1016/j.surfin.2024.105444","url":null,"abstract":"<div><div>Solar-driven photoelectrochemical (PEC) water splitting is one of the promising technologies to produce green hydrogen as the carbon-free energy carrier. However, the ideal photoanode material BiVO<sub>4</sub> still suffers from sluggish carrier dynamic problem. Here, NiCo-LDH/Ni/BiVO<sub>4</sub> (NC/N/BVO) composite photoanode with a three-layer structure was successfully fabricated by introducing Ni layer followed by NiCo-LDH on BiVO<sub>4</sub> by magnetron sputtering and electrochemical deposition, respectively. The optimized structure of NC/N/BVO exhibited a photocurrent of 4.15 mA cm<sup>−2</sup> (1.23 V<sub>REH</sub>) in neutral solution, which was 2.8 times of pristine BiVO<sub>4</sub>. Besides, the photocurrent can be well maintained at 98 % for NC/N/BVO in 1h reaction, which dramatically decreases to 60 % for BiVO<sub>4</sub>. In this composite photoanode, NiCo-LDH as excellent water oxidation catalyst can effectively enhance the kinetic process of water oxidation on the surface, while the introduction of Ni layer can not only promote the following deposition of NiCo-LDH being a finer nanostructure with high surface area, but also increase the charge conduction efficiency and promote the charge transfer process between NiCo-LDH and BiVO<sub>4</sub> substrate. The appropriate deposition sequence of Ni and NiCo-LDH layers ultimately highly improved the charge injection efficiency of NC/N/BVO resulting in a high performance of PEC water splitting.</div></div>","PeriodicalId":22081,"journal":{"name":"Surfaces and Interfaces","volume":"56 ","pages":"Article 105444"},"PeriodicalIF":5.7,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142721008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}