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Strong metal–support interaction boosts the electrocatalytic hydrogen evolution capability of Ru nanoparticles supported on titanium nitride

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Carbon Energy 2024年第1期6卷 245-254页

作者： Xin Wang Xiaoli Yang Guangxian Pei Jifa Yang Junzhe Liu Fengwang Zhao Fayi Jin Wei Jiang Haoxi Ben Lixue Zhang College of Chemistry and Chemical Engineering Collaborative Innovation Center for Hydrogen Energy Key Materials and Technologies of Shandong ProvinceQingdao UniversityQingdaoShandongChina State Key Laboratory of Bio-fibers and Eco-Textiles Qingdao UniversityQingdaoShandongChina Qingdao Institute of Bioenergy and Bioprocess Technology Chinese Academy of ScienceQingdaoShandongChina

Ruthenium(Ru)has been regarded as one of the most promising alternatives to substitute Pt for catalyzing alkaline hydrogen evolution reaction(HER),owing to its inherent high activity and being the cheapest platinum-group ***,based on the idea of strong metal–support interaction(SMSI)regulation,Ru/TiN catalysts with different degrees of TiN overlayer over Ru nanoparticles were fabricated,which were applied to the alkaline electrolytic *** reveal that the TiN overlayer would gradually encapsulate the Ru nanoparticles and induce more electron transfer from Ru nanoparticles to TiN support by the Ru–N–Ti bond as the SMSI degree *** study shows that the exposed Ru–TiN interfaces greatly promote the H_(2) desorption ***,the Ru/TiN-300 with a moderate SMSI degree exhibits excellent HER performance,with an overpotential of 38 mV at 10 mA cm^(−2).Also,due to the encapsulation role of TiN overlayer on Ru nanoparticles,it displays super long-term stability with a very slight potential change after 24 *** study provides a deep insight into the influence of the SMSI effect between Ru and TiN on HER and offers a novel approach for preparing efficient and stable HER electrocatalysts through SMSI engineering.

关键词： electronic structure hydrogen evolution reaction ruthenium strong metal-support interaction titanium nitride

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Tuning the crystallinity of titanium nitride on copper-embedded carbon nanofiber interlayers for accelerated electrochemical kinetics in lithium-sulfur batteries

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Carbon Energy 2024年第6期6卷 40-55页

作者： Yinyu Xiang Liqiang Lu Feng Yan Debarun Sengupta Petra Rudolf Ajay Giri Prakash Kottapalli Yutao Pei Advanced Production Engineering Engineering and Technology Institute GroningenUniversity of GroningenGroningenThe Netherlands Zernike Institute for Advanced Materials University of GroningenGroningenThe Netherlands

The development of lithium-sulfur(Li-S)batteries is hindered by the disadvantages of shuttling of polysulfides and the sluggish redox kinetics of the conversion of sulfur species during discharge and ***,the crystallinities of a titanium nitride(TiN)film on copper-embedded carbon nanofibers(Cu-CNFs)are regulated and the nanofibers are used as interlayers to resolve the aforementioned crucial issues.A low-crystalline TiN-coated Cu-CNF(L-TiN-Cu-CNF)interlayer is compared with its highly crystalline counterpart(H-TiN-Cu-CNFs).It is demonstrated that the L-TiN coating not only strengthens the chemical adsorption toward polysulfides but also greatly accelerates the electrochemical conversion of *** to robust carbon frameworks and enhanced kinetics,impressive highrate performance at 2 C(913 mAh g^(-1)based on sulfur)as well as remarkable cyclic stability up to 300 cycles(626 mAh g^(-1))with capacity retention of 46.5%is realized for L-TiN-Cu-CNF interlayer-configured Li-S *** under high loading(3.8 mg cm^(-2))of sulfur and relatively lean electrolyte(10μL electrolyte per milligram sulfur)conditions,the Li-S battery equipped with L-TiN-Cu-CNF interlayers delivers a high capacity of 1144 mAh g^(-1)with cathodic capacity of 4.25 mAh cm^(-2)at 0.1 C,providing a potential pathway toward the design of multifunctional interlayers for highly efficient Li-S batteries.

关键词： crystallinity electrochemical kinetics interlayer lithium-sulfur batteries titanium nitride

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titanium nitride nanorod array/carbon cloth as flexible integrated host for highly stable lithium-sulfur batteries

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Rare Metals 2023年第12期42卷 4115-4127页

作者： Rui-Qing Liu Feng Jin Min Gu Dong-Wen Zhang Lu-Lu He Wen-Xiu Liu Wen-Feng Zhu Kun Xie Jing-Yi Wu Yi-Ran Liu Wei-Wei Yang Xiu-Jing Lin Li Shi Xiao-Miao Feng Zhen Hou Ji-Gang Zhou Yan-Wen Ma State Key Laboratory of Organic Electronics and Information Displays and Institute of Advanced Materials(IAM) Jiangsu National Synergetic Innovation Center for Advanced Materials(SICAM)Nanjing University of Posts and TelecommunicationsNanjing 210023China Department of Applied Physics The Hong Kong Polytechnic UniversityHung Hom 1000872Hong KongChina Canadian Light Source Inc. University of SaskatchewanSaskatoonSK S7N 2V3Canada Suzhou Vocational Institute of Industrial Technology Suzhou 215104China

Lithium-sulfur(Li-S)batteries have been regarded as promising energy-storage systems,due to their high theoretical capacity and energy ***,the carbonaceous sulfur hosts suffer from weak binding force between the hosts and polysulfides,restricting the cyclic stability of sulfur ***,the presence of binder and conductive agent in the traditional electrode reduces its energy *** study demonstrates that titanium nitride(TiN)nanorod array on carbon cloth(CC)is employed as a flexible host for highly stable Li-S batteries via solvothermal synthesis-nitridation *** the one hand,the flexible integrated network composed of three-dimensional TiN nanorod array and CC significantly improves the conductivity,increases the electron transport and electrolyte penetration of *** the other hand,the 3D structure of TiN/CC and the enhanced polarity of TiN effectively strengthen the physical and chemical double adsorption for *** a result,the combination of TiN nanorod array and CC synergistic ally promotes sulfur utilization and electrochemical performances of S@TiN/CC cathode.A discharge capacity of1015.2 mAh·g^(-1)at 0.5C after 250 cycles and 604.1mAh·g^(-1)at 3C after 250 cycles is *** a larger current density of 5C,the resulting S@TiN/CC cathode maintains a high discharge capacity of 666.6 mAh·g^(-1)and the Coulombic efficiency of about 100%.

关键词： titanium nitride Nanorod array Integrated structure Chemical adsorption Lithium-sulfur batteries

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Palladium nanoparticles assembled on titanium nitride for enhanced electrochemical hydrodechlorination of 2,4-dichlorophenol in water

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Chinese Journal of Catalysis 2018年第4期39卷 693-700页

作者： Wenyang Fu Kaifeng Wang Xiaoshu Lv Hailu Fu Xingan Dong Ling Chen Xianming Zhang Guangming Jiang Engineering Research Center for Waste Oil Recovery Technology and Equipment Ministry of EducationChongqing Technology and Business UniversityChongqing 400067China College of Quality and Safety Engineering China Jiliang UniversityHangzhou 310018ZhejiangChina

We report a one‐pot surfactant‐free wet‐chemical reduction approach to the synthesis of palladium/titanium nitride(Pd/TiN)and Pd/carbon(Pd/C)composites,in which^5 nm Pd NPs were uniformly dispersed on TiN or *** terms of catalytic performance,Pd/TiN showed enhanced efficiency and stability compared with those of Pd/C and bare TiN in the electrocatalytic hydrodechlorination(EHDC)reaction of 2,4‐dichlorophenol(2,4‐DCP)in aqueous *** superior performance of Pd/TiN arises from the promotion effect of *** metal‐support interactions modified the electronic structure of Pd,which optimized generation of H*ads and 2,4‐DCP adsorption/*** cathode potential plays a vital role in controlling the EHDC efficiency and the product distribution.A working potential of?0.80 V was shown to be optimal for achieving the highest EHDC efficiency and maximizing conversion of 2,4‐DCP to phenol(P).Our studies of the reaction pathway show that EHDC of 2,4‐DCP on Pd/TiN proceeded by 2,4‐DCP→p‐chlorophenol(p‐CP),o‐chlorophenol(o‐CP)→P;however,Pd/TiN presented little selectivity for cleavage of p‐C‐Cl vs o‐C‐*** work presents a new approach to enhancing Pd performance towards EHDC through the effects of a *** strategy demonstrated here could also be extended to design highly efficient catalysts for other hydrogenation reactions.

关键词： Hydrodechlorination Electrolysis Palladium titanium nitride Environmental remediation

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Structure and properties of diffusive titanium nitride layers produced by hybrid method on AZ91D magnesium alloy

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Transactions of Nonferrous Metals Society of China 2014年第9期24卷 2767-2775页

作者： Michal TACIKOWSKI Jerzy MORGIEL Monika BANASZEK Konrad CYMERMAN Tadeusz WIERZCHON Faculty of Materials Science and Engineering Warsaw University of Technology ul.Woloska 141 02-507 Warsaw Poland Institute of Metallurgy and Materials Science Polish Academy of Science ul. Reymonta 25 30-059 Kraków Poland

A diffusive titanium nitride layers were produced on AZ91 D magnesium alloy by a hybrid method which combines the titanium coating physical vapor deposition（PVD） with subsequent nitriding. The layers are composed of a thin surface zone of titanium nitrides and oxides, an intermediate titanium zone and Ti-Al-Mg type diffusive zone. Since the layers improve the corrosion resistance, the best corrosion resistance is obtained when the layers are produced on aluminum base sub-layer by oxynitriding.

关键词： magnesium alloys titanium nitride diffusive layers hybrid method

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Effect of frequency and pulse-on time of high power impulse magnetron sputtering on deposition rate and morphology of titanium nitride using response surface methodology

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Transactions of Nonferrous Metals Society of China 2019年第12期29卷 2577-2590页

作者： Saeed GHASEMI Ali Reza FARHADIZADEH Hamid GHOMI Laser and Plasma Research Institute Shahid Beheshti University

titanium nitride thin films were deposited on silicon by high power impulse magnetron sputtering(HiPIMS)method at different frequencies(162-637 Hz)and pulse-on time(60-322μs).Response surface methodology(RSM)was employed to study the simultaneous effect of frequency and pulse-on time on the current waveforms and the crystallographic orientation,microstructure,and in particular,the deposition rate of titanium nitride at constant time and average power equal to 250 *** crystallographic structure and morphology of deposited films were analyzed using XRD and FESEM,*** is found that the deposition rate of HiPIMS samples is tremendously dependent on pulse-on time and frequency of pulses where the deposition rate changes from 4.5 to 14.5 nm/*** regression equations and analyses of variance(ANOVA)reveal that the maximum deposition rate(equal to(17±0.8)nm/min)occurs when the frequency is 537 Hz and pulse-on time is 212μ*** experimental measurement of the deposition rate under this condition gives rise to the deposition rate of 16.7 nm/min that is in good agreement with the predicted value.

关键词： high powder impulse magnetron sputtering(HiPIMS) titanium nitride response surface methodology(RSM) deposition rate analyses of variance(ANOVA)

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Fabrication of titanium nitride nanoparticles onto carbon nanotubes by atomic layer deposition for utilization as Pt electrocatalyst supports

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Rare Metals 2020年第7期39卷 784-791页

作者： Guo-Tao Song Yue Wang Yan Qi Wei-Min Li Li-Xue Zhang College of Chemistry and Chemical Engineering Qingdao UniversityQingdao 266071China Jiangsu Leadmicro Nano-Equipment Technology Ltd. Wuxi 214028China

Because of its good stability and conductivity,titanium nitride(TiN)is considered to be a very promising alternative support for Pt catalyst;however,the preparation of TiN supports is still *** this work,atomic layer deposition was facilely adopted to fabricate TiN nanoparticles onto carbon nanotubes(CNTs),and then the prepared TiN/CNTs hybrid was used as a support of Pt *** resulting TiN/CNTs-supported Pt nanoparticles(Pt@TiN/CNTs)nanocomposite showed higher catalytic activity and long-term stability toward the oxygen reduction reaction than the commercial Pt/C,which should be due to the high conductivity and high stability of TiN support,as well as the favorable Pt-TiN strong interaction.

关键词： Atomic layer deposition titanium nitride Carbon nanotube Pt electrocatalyst Oxygen reduction reaction

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COMPARISON OF SURFACE PROPERTIES OF Ti-6Al-4V COATED WITH titanium nitride, TiN+TiC+Ti(C,N)/DLC, TiN/DLC AND TiC/DLC FILMS BY PLASMA-BASED ION IMPLANTATION

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Acta Metallurgica Sinica(English Letters) 2000年第4期13卷 967-973页

作者： Ji, H.B. Xia, L.F. Ma, X.X. Sun, Y. Sun, M.R. Harbin Inst of Technology Harbin China

The surface properties of Ti-6Al-4V alloy coated with titanium nitride, TiN+TiC+Ti(C,N)/DLC (diamond like carbon), TiN/DLC and TiC/DLC films by plasma-based ion implantation (PBII) with nitrogen, PBII with nitrogen then acetylene, PBII with nitrogen then glow discharge deposition with acetylene plus hydrogen and PBII with acetylene then glow discharge deposition with acetylene plus hydrogen respectively were studied. The corresponding films are found getting dimmer, showing light gold or gold, smoky color (uneven), light red in black (uneven), and graphite black separately. The corresponding film resistivities are given. Antioxidation ability of the titanium nitride film is poor, while the existence of carbon (or carbide) improves the antioxidation ability of the films. Having undergone excellent intermediate transitional region of nitrogen and carbon implantation, the top DLC layer of the TiN+TiC+Ti(C,N)/DLC multilayer are formed after the carbon implantation has the best adhesion with the substrate among all the multilayers. Although microhardness of the samples increases in the order of coatings of titanium nitride, TiN/DLC, TiN+TiC+Ti(C,N)/DLC and TiC/DLC, the TiN/DLC and TiC/DLC multilayers have greater brittleness as compared with other films.

关键词： titanium alloys titanium nitride Plasmas Ion implantation Microhardness Surface properties

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High performance corrosion and wear resistant composite titanium nitride layers produced on the AZ91D magnesium alloy by a hybrid method

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Journal of Magnesium and Alloys 2014年第3期2卷 265-273页

作者： Michał Tacikowski Marek Betiuk Konrad Cymerman Marcin Pisarek Irena Pokorska Tadeusz Wierzchon Warsaw University of Technology Faculty of Materials Science and Engineeringul.Wołoska 14102-507 WarsawPoland Institute of Precision Mechanics ul.Duchnicka 301-796 WarsawPoland Institute of Physical Chemistry of the Polish Academy of Science ul.Kasprzaka44/5201-224 WarsawPoland

Composite,diffusive titanium nitride layers formed on a titanium and aluminum sub-layer were produced on the AZ91D magnesium *** layers were obtained using a hybrid method which combined the PVD processes with the final sealing by a hydrothermal *** microstructure,resistance to corrosion,mechanical damage,and frictional wear of the layers were *** properties of the AZ91D alloy covered with these layers were compared with those of the untreated alloy and of some engineering materials such as 316L stainless steel,100Cr6 bearing steel,and the AZ91D alloy subjected to commercial *** has been found that the composite diffusive nitride layer produced on the AZ91D alloy and then sealed by the hydrothermal treatment ensures the corrosion resistance comparable with that of 316L stainless *** layers are characterized by higher electrochemical durability which is due to the surface being overbuilt with the titanium oxides formed,as shown by the XPS examinations,from titanium nitride during the hydrothermal *** composite titanium nitride layers exhibit high resistance to mechanical damage and wear,including frictional wear which is comparable with that of 100Cr6 bearing *** performance properties of the AZ91D magnesium alloy covered with the composite titanium nitride coating are substantially superior to those of the alloy subjected to commercial anodizing which is the dominant technique employed in industrial practice.

关键词： Magnesium alloys titanium nitride Layers Hybrid method Microstructure Properties

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Study on titanium nitride Film Modified for Intraocular Lens

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Chinese Journal of Biomedical Engineering(English Edition) 2009年第4期18卷 171-177,184页

作者： ZHANG Bai-ming GU Han-qing Tianjin Medical University Tianjin 300070 China

Objective:To study the characteristics of the intraocular lens using ion beam sputtering depositing titanium nitride thin film on the intraocular lens(IOLs).Methods:To deposite titanium nitride thin film on the top of intraocular lens by ion beam sputtering *** analyzed the surface morphology of intraocular lens through SEM and *** detected intraocular lens resolution through the measurement of intraocular *** of intraocular lens is preliminary evaluated in this ***:The surface morphology of intraocular lens material was not changed,and was in line with the requirements of *** was in line with national *** and modified IOLs's cytotoxicity were 1 and 0.6 grade *** rates of modified and unmodified were both less than 5%.Conclusion:Ion beam sputtering deposition of objects didn't only affect the surface morphology and the basic optical performance,but also can enhance the biocompatibility of intraocular *** beam sputtering deposition technique has provided new methods for the surface modification of IOLs and PMMA materials.

关键词： titanium nitride intraocular lens surface modification resolution biocompatibility

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