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Nano Research 2024年第6期17卷 5073-5079页

作者： Ge Yu Ruilong Li yida zhang Xingen Lin Gongming Wang Xun Hong Center of Advanced Nanocatalysis(CAN) Department of Applied ChemistryUniversity of Science and Technology of ChinaHefei 230026China National Synchrotron Radiation Laboratory(NSRL) University of Science and Technology of ChinaHefei 230029China

IrRu bimetallic oxides are recognized as the promising acidic oxygen evolution reaction(OER)catalysts,but breaking the trade-off between their activity and stability is an unresolved ***,addressing the issues of mass transport obstruction of IrRu bimetallic oxides under high current remains a challenge for the development of proton exchange membrane water electrolysis(PEM-WE).Herein,we prepared an IrRuO_(x)nanomeshes(IrRuO_(x)NMs)with high coordination number(CN)of Ir-O-Ru bonds in a mixed molten salt with high solubility of the Ir/Ru precursor.X-ray absorption spectroscopy analysis revealed that the IrRuO_(x)NMs possess high coordination number of Ir-O-Ru bonds(CNIr-O-Ru=5.6)with a distance of 3.18Å.Moreover,the nanomesh structures of IrRuO_(x)NMs provided hierarchical channels to accelerate the transport of oxygen and water,thus further improving the electrochemical ***,the IrRuO_(x)NMs as OER catalysts can simultaneously achieve high activity and stability with low overpotential of 196 mV to reach 10 mA·cm^(−2)and slightly increase by 70 mV over 650 h *** electrochemical mass spectrometry tests suggest that the preferred OER mechanism for IrRuO_(x)NMs is the adsorbent evolution mechanism,which is beneficial for the robust structural stability.

关键词： oxygen evolution reaction IrRuO_(x) Ir-O-Ru bonds two-dimensional(2D)nanomesh proton exchange membrane device mass transport

A nanocarrier based on poly(D,L-lactic-co-glycolic acid) for transporting Na^+ and Cl^- to induce apoptosis

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Chinese Chemical Letters 2020年第6期31卷 1635-1639页

作者： Chen Ma yida zhang Zhijuan Jiao Chunmeng Ma Xiaoyan Liu Haixia zhang College of Chemistry and Chemical Engineering Lanzhou UniversityLanzhou 730000China

Transmembrane anion transporters have attracted significant attention as therapeutic agents because of their potential to disrupt cellular ion homeostasis,in which,most of the synthetic anionic transporters are organic small molecules whose synthesis routes are usually complex and tedious,and the related biological research is also only in ***,we synthesized a kind of chloride anion(Cl-)and sodium cation(Na^+)nanocarrier based on poly(D,L-lactic-co-glycolic acid)(PLGA)which was coated with polydopamine(PDA)to provide target release *** the nanocarrier arrives in acidic enviro nment such as lysosomes through endocytosis,Cl^-and Na^+will be released fast from the nanocarrier resulting in imbalance of cell homeostasis for inducing *** experiments show that the nanocarrier promotes apoptosis and leads to an increased concentration of reactive oxygen *** exploring the concentration of cytochrome c in mitochondria and cytoplasm and the activities of key enzymes caspase-9 and caspase-3 in apoptosis process,it is proved that the apoptotic pathway is *** novel strategy allows the research of anion transporter no longer limited to artificial synthesis of small molecular and provides a novel and effective direction to investigate ion homeostasis,ion transport and cancer treatment.

关键词： Ions nanocarrier Release fast Transport ions Inducing apoptosis Caspase-dependent

Nitrogen doped FeS_(2) nanoparticles for efficient and stable hydrogen evolution reaction

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Journal of Energy Chemistry 2021年第5期30卷 283-289页

作者： Jian Ye Yipeng Zang Qingyu Wang yida zhang Da Sun Leijie zhang Gongming Wang Xusheng Zheng Junfa Zhu National Synchrotron Radiation Laboratory University of Science and Technology of ChinaHefei 230029AnhuiChina School of Science Anhui Agricultural UniversityHefei 230036AnhuiChina Hefei National Laboratory for Physical Science at the Microscale Department of ChemistryUniversity of Science and Technology of ChinaHefei 230026AnhuiChina

Performance breakthrough of electrocatalysts highly relies on the regulation of internal structures and electronic *** present work,for the first time,we successfully synthesized nitrogen doped FeS_(2) nanoparticles(N-FeS_(2))as the electrocatalysts for hydrogen evolution reaction(HER).The band structure and electronic state of FeS_(2) are modulated by a nitrogen doping strategy,as confirmed by X-ray photoelectron spectroscopy(XPS),X-ray absorption spectroscopy(XAS)and density functional theory(DFT)*** to the band structure and electronic state regulation as well as the weakening of H-S interaction,the designed N-FeS_(2) electrocatalyst exhibits superior catalytic performance with a low overpotential(~126 mV at 10 mA cm^(-2))and excellent activity stability under alkaline conditions,which is substantially improved as compared with that of the pure FeS_(2) *** work demonstrates that the modulation of electron state and band structure of an electrocatalyst,which can provide a valuable guidance for designing excellent catalysts for hydrogen evolution reaction and beyond.

关键词： Ferric sulfide Nitrogen dopant Nanoparticles Electrocatalyst Hydrogen evolution reactio

Manipulating photogenerated electron flow in nickel single‐atom catalysts for photocatalytic CO_(2) reduction into tunable syngas

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Carbon Energy 2024年第8期6卷 205-213页

作者： yida zhang Qingyu Wang Lihui Wu Haibin Pan Chengyuan Liu Yue Lin Gongming Wang Xusheng Zheng National Synchrotron Radiation Laboratory University of Science and Technology of ChinaHefeiAnhuiChina College of Chemistry and Materials Science University of Science and Technology of ChinaHefeiAnhuiChina Department of Chemistry Hefei National Research Center for Physical Sciences at the MicroscaleUniversity of Science and Technology of ChinaHefeiAnhuiChina

The key to designing photocatalysts is to orient the migration of photogenerated electrons to the target active sites rather than dissipate at inert ***,we demonstrate that the doping of phosphorus(P)significantly enriches photogenerated electrons at Ni active sites and enhances the performance for CO_(2) reduction into *** photocatalytic CO_(2) reduction,Ni single‐atom‐anchored P‐modulated carbon nitride showed an impressive syngas yield rate of 85μmol gcat^(−1)h^(−1) and continuously adjustable CO/H_(2) ratios ranging from 5:1 to 1:2,which exceeded those of most of the reported carbon nitride‐based single‐atom *** studies reveal that P doping improves the conductivity of catalysts,which promotes photogenerated electron transfer to the Ni active sites rather than dissipate randomly at low‐activity nonmetallic sites,facilitating the CO_(2)‐to‐syngas photoreduction process.

关键词： carbon nitride CO_(2) photoreduction electron flow Ni single atoms syngas

Synthesis of carbon dots with a tunable photoluminescence and their applications for the detection of acetone and hydrogen peroxide

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Chinese Chemical Letters 2020年第2期31卷 487-493页

作者： Shitong Cui Yanfen Wu Yao Liu Qingwen Guan yida zhang Yilin zhang Song Luo Meng Xu Juncheng Wang State Key Laboratory of Heavy Oil Processing China University of Petroleum-BeijingBeijing 102249China Research Institute for New Materials Technology Chongqing University of Arts and SciencesChongqing 402160China Stomatology Department of the General Department of OrthopedicHospital of Chinese PLABeijing 100853China

Carbon dots(CDs) with multi-color emissive properties and a high photoluminescent quantum yield(PLQY) have attracted great attention recently due to their potential applications in chemical,environmental,biological and photo-electronic ***-dependent effect in photoluminescence provides a facial and effective approach to tune the emission of *** this study,green emissive nitrogen-doped carbon dots(N-CDs) are synthesized from p-hydroquinone and ethylenediamine through a simple hydrothermal *** as-prepared N-CDs possess a robust excitation-independent green luminescence and a high PLQY of up to 15.9%.Further spectroscopic characterization indicates that the high PLQY is achieved by the balance of nitrogen doping states and the surface passivation extent in *** N-CDs also exhibit solvent-dependent multi-color emissive property and distinct PLQY in different solvents(the maximum can reach up to 25.3%).Furthermore,the as-prepared N-CDs are applied as fluorescence probes to detect acetone and H2O2 in *** method has exhibited a low detection limit of acetone(less than 0.1 %) and a quick and linear response to the H_2O_2 with the concentration from 0 to 120 μmol/*** work broadens the knowledge of applying CDs as probes in the bio and chemical sensing fields.

关键词： Carbon dots Photoluminescence quantum yield Solvent-dependent emissions Biosensors Acetone Fenton reaction

The promoting effect of interstitial hydrogen on the oxygen reduction performance of PtPd alloy nanotubes for fuel cells

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Nano Research 2023年第2期16卷 2366-2372页

作者： Tingting Chao Xuan Luo Mengzhao Zhu Yanmin Hu yida zhang Yunteng Qu Hantao Peng Xiaoshuang Shen Xusheng Zheng Liang zhang Xun Hong Center of Advanced Nanocatalysis(CAN) Department of Applied ChemistryUniversity of Science and Technology of ChinaHefei 230026China Country Center for Combustion Energy and School of Vehicle and Mobility Tsinghua UniversityBeijing 100084China National Synchrotron Radiation Laboratory(NSRL) University of Science and Technology of ChinaHefei 230029China Department of Chemical Physics University of Science and Technology of ChinaHefei 230026China School of Physical Science and Technology Yangzhou UniversityYangzhou 225002China

Highly efficient and stable oxygen reduction reaction(ORR)electrocatalysts are remarkably important but challenging for advancing the large-scale commercialization of practical proton exchange membrane fuel cells(PEMFCs).In this work,we report that the introduction of interstitial hydrogen atoms into PtPd nanotubes can significantly promote ORR performance without scarifying the *** enhanced mass activity was 8.8 times higher than that of commercial Pt/*** accelerated durability test showed negligible activity attenuation after 30,000 ***,H2/O2 fuel cell tests further verified the excellent activity of PtPd-H nanotubes with a maximum power density of 1.32 W·cm^(−2),superior to that of commercial Pt/C(1.16 W·cm^(−2)).Density functional theory calculations demonstrated the incorporation of hydrogen atoms gives rise to the broadening of Pt d-band and the downshift of d-band center,which consequently leads to the weaker intermediates binding and enhanced ORR activity.

关键词： hydrogen atoms incorporation alloy d-band structure regulation oxygen reduction reaction fuel cell

Ultrasensitive quantification of trace amines based on N-phosphorylation labeling chip 2D LC-QQQ/MS

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Journal of Pharmaceutical Analysis 2023年第3期13卷 315-322页

作者： Xiqing Bian yida zhang Na Li Menglin Shi Xiaolin Chen Hui-Lu zhang Jie Liu Jian-Lin Wu State Key Laboratory of Quality Research in Chinese Medicine Macao University of Science and TechnologyMacao999078China Department of Digestive Diseases Huashan HospitalFudan UniversityShanghai200040China

Trace amines(TAs)are metabolically related to catecholamine and associated with cancer and neurological *** measurement of TAs is essential for understanding pathological processes and providing proper drug ***,the trace amounts and chemical instability of TAs challenge ***,diisopropyl phosphite coupled with chip two-dimensional(2D)liquid chromatography tandem triple-quadrupole mass spectrometry(LC-QQQ/MS)was developed to simultaneously determine TAs and associated *** results showed that the sensitivities of TAs increased up to 5520 times compared with those using nonderivatized LC-QQQ/*** sensitive method was utilized to investigate their alterations in hepatoma cells after treatment with *** significantly altered TAs and associated metabolites suggested that phenylalanine and tyrosine metabolic pathways were related to sorafenib treatment in Hep3B *** sensitive method has great potential to elucidate the mechanism and diagnose diseases considering that an increasing number of physiological functions of TAs have been discovered in recent decades.

关键词： Chip 2D LC-QQQ/MS Trace amines Derivatization Hepatoma

Near infrared molybdenum oxide quantum dots with high photoluminescence and photothermal performance

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Chinese Chemical Letters 2020年第6期31卷 1616-1619页

作者： Xiaoxiao Dong Hong Zhao Yuanyuan Mi Yao Liu yida zhang Ya Liu Yusheng Chen Quan Xu State Key Laboratory of Heavy Oil Processing College of Mechanical and Transportation EngineeringChina University of Petroleum-BeijingBeijing 102249China Research Institute for New Materials Technology Chongqing University of Arts and ScienceChongqing 402160China Department of Chemical Science University of AkronAkronOH 44325United States

The synthesized near infrared molybdenum oxide quantum dots perform excellent red fluorescence imaging performance and photothermal performance,which have 600,650 and 700 nm three unique peaks excited at 540 nm,with a high quantum yield around 20%.Meanwhile,with 808 nm NIR laser excitation,10 mg/mL modified Molybdenum oxide quantum dots can increase temperature up to 72.2℃within 150 s and 77.7℃within 270 s,respectively.

关键词： Molybdenum oxide quantum dots Fluorescence imaging performance Photothermal performance Carbon dots Near infrared

Low-coordination environment design of single Co atoms for efficient CO_(2) photoreduction

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Nano Research 2024年第5期17卷 3745-3751页

作者： Zhentao Ma Qingyu Wang Limin Liu Rong-Ao zhang Qichen Liu Peigen Liu Lihui Wu Chengyuan Liu Yu Bai yida zhang Haibin Pan Xusheng Zheng National Synchrotron Radiation Laboratory University of Science and Technology of ChinaHefei 230029China College of Chemistry and Materials Science University of Science and Technology of ChinaHefei 230026China Experimental Center of Engineering and Material Science University of Science and Technology of ChinaHefei 230026China

Photocatalytic carbon dioxide(CO_(2))to carbon monoxide(CO)offers a promising way for both alleviating the greenhouse effect and meeting the industrial ***,we constructed a Co single-atom catalyst with intentional low-coordination environment design on porous ZnO(denoted as Co1/ZnO).Impressively,Co1/ZnO exhibited a remarkable activity with a CO yield rate of 22.25 mmol·g^(-1)·h^(-1) and a selectivity of 80.2%for CO_(2) photoreduction reactions under visible *** incorporation of single Co atoms provided an additional photo-generated electron transfer channel,which suppressed the carrier recombination of ***,the unsaturated Co active sites were capable to adsorb CO_(2) molecule spontaneously,thus facilitating the activation of CO_(2) molecule during CO_(2) reduction course.

关键词： photocatalytic CO_(2)reduction single atoms low-coordination CO_(2)adsorption electron transfer

Regulating local charges of atomically dispersed Moδ+ sites by nitrogen coordination on cobalt nanosheets to trigger water dissociation for boosted hydrogen evolution in alkaline media

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Journal of Energy Chemistry 2022年第9期31卷 125-132,I0004页

作者： Maoqi Cao Kang Liu Yao Song Chao Ma Yiyang Lin Huangjingwei Li Kejun Chen Junwei Fu Hongmei Li Jun Luo yida zhang Xusheng Zheng Junhua Hu Min Liu School of Chemistry and Chemical Engineering Qiannan Normal University for NationalitiesDuyun 558000GuizhouChina State Key Laboratory of Powder Metallurgy School of Physics and ElectronicsShenzhen Research InstituteSchool of Physical and ElectronicsCentral South UniversityChangsha 410083HunanChina School of Materials Science and Engineering Central South University of Forestry and TechnologyChangsha 410004HunanChina School of Materials Science and Engineering Hunan UniversityChangsha 410082HunanChina National Synchrotron Radiation Laboratory University of Science and Technology of ChinaHefei 230029AnhuiChina School of Materials Science and Engineering Zhengzhou UniversityZhengzhou 450001HenanChina

Now,Pt-based materials are still the best catalysts for hydrogen evolution reaction(HER).Nevertheless,the scarcity of Pt makes it impossible for the large-scale applications in *** cobalt is taken as an excellent HER catalyst due to its suitable H*binding,its alkali HER catalytic property need to be improved because of the sluggish water dissociation *** this work,nitrogen with small atomic radius and metallophilicity is employed to adjust local charges of atomically dispersed Mo^(δ+)sites on Co nanosheets to trigger water *** calculations suggest that the energy barrier of water dissociation can be effectively reduced by introducing nitrogen coordinated Mo^(δ+)*** realize this speculation,atomically dispersed Mo^(δ+)sites with nitrogen coordination of Mo(N)/Co were prepared via reconstruction of CoMoO_(4).High angle annular dark-field scanning transmission electron microscopy(HAADF-STEM)and X-ray absorption spectroscopy(XAS)demonstrate the coordination of N atoms with atomically dispersed Mo atoms,leading to the local charges of atomically dispersed Mo^(δ+)sites in Mo(N)/*** measurement from ambient pressure X-ray photoelectron spectroscopy(AP-XPS)reveals that the Mo^(δ+)sites promote the adsorption and activation of water ***,the Mo(N)/Co exhibits an excellent activity,which need only an overpotential of 39 mV to reach the current density of 10 mA cm^(-2).The proposed strategy provides an advance pathway to design and boost alkaline HER activity at the atomic-level.

关键词： Charge localized Mo Nitrogen coordination Co nanosheet Water dissociation Alkaline HER