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Metal nanoparticles decorated CoFe-(oxy)hydroxysulfides nanosheets fabricated by a general strategy for electrocatalytic water splitting

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Journal of Energy Chemistry 2025年第1期100卷 26-38页

作者： Xiaodong Yang Haochen Shen Xiaoming Xiao Zhichao Li qi zhou Wei Yang Bin Jiang Yongli Sun Luhong Zhang Zhenhua Yan School of Chemical Engineering and Technology Tianjin University Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) Nankai University

This study presents a novel method to fabricate metal-decorated,sulfur-doped layered double hydroxides （M/SLDH） through spontaneous redox and sulfurization *** developed Ag/SLDH and Pt/SLDH catalysts with abundant heterogeneous interfaces and hierarchical nanostructures demonstrated outstanding oxygen evolution reaction （OER） and hydrogen evolution reaction （HER） performance,achieving low overpotentials of 212 and 35 mV at 10 mA cm-2in 1 M KOH,*** both anode and cathode in water splitting,they required only 1.47 V to reach 10 mA cm-2and exhibited high structural robustness,maintaining stability at 1000 mA cm-2for 300 ***-situ Raman analysis revealed that the synergistic effects of metal nanoparticles and S doping significantly promote the transformation into the S-Co1-xFexOOH layer,which serves as the active phase for water ***,ultraviolet photoelectron spectroscopy （UPS） and density functional theory （DFT） analyses indicated that incorporating metal nanoparticles and S doping increase electron density near the Fermi level and reduce reaction energy barriers,thus enhancing intrinsic OER and HER *** study provides a scalable strategy for synthesizing high-performance electrocatalysts for water splitting,with promising potential for broader applications.

关键词： Ultraviolet photoelectron spectroscopy

A chromosome minimalist view of genome regulation and evolution based on mouse chromosome engineering

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Zoological Research 2022年第6期43卷 949-951页

作者： qi zhou MOE Laboratory of Biosystems Homeostasis and Protection and Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology Life Sciences InstituteZhejiang UniversityHangzhouZhejiang 310058China Center for Reproductive Medicine 2nd Affiliated HospitalSchool of MedicineZhejiang UniversityHangzhouZhejiang 310052China Evolutionary&Organismal Biology Research Center School of MedicineZhejiang UniversityHangzhouZhejiang 310058China

What is the minimum number of chromosomes that a eukaryotic species can tolerate?This question has long fascinated biologists as chromosomal rearrangements are associated with both speciation and various genetic *** a... 详细信息

关键词： evolution Kunming chromosome

Exploring point zero:a study of 20 Chinese cities

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Geo-Spatial Information Science 2020年第3期23卷 258-272,I0006页

作者： qi zhou Mingjian Zhai Wenhao Yu School of Geography and Information Engineering China University of GeosciencesWuhanChina

A point zero represents a central geographical location of a city,which is essential for not only measuring distances,but also understanding the historical and/or cultural origin of a *** extensive studies have focused on delineating city centers,to our knowledge,no studies have paid attention to determining the location for a point ***,our goal is to investigate various potential approaches for identifying such a ***,three typical approaches,geometric-based,topological-based,and thematic-based,are proposed to recommend point zeros and different scales,administrative divisions,kernel density sur-faces,and regions enclosed by ring roads are used for *** effectiveness of different approaches and scales are evaluated and compared by calculating an offset distance between recommended and actual point zero locations in 20 Chinese *** the different approaches,the average offset distance for most Chinese cities is 2-4 km,and the thematicbased approach performs *** the topological-based and thematic-based approaches are less sensitive to the analyzed scale than the geometric-based *** results indicate that it is possible to determine the approximate location for a point zero from geographical *** on the buffer zone of such a location,an actual point zero may further be recommended.

关键词： Point zero city center geographical data Chinese cities

Derivation and application of pluripotent stem cells for regenerative medicine

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Science China(Life Sciences) 2016年第6期59卷 576-583页

作者： Jiaqiang Wang qi zhou State Key Laboratory of Stem cell and Reproductive Biology Institute of Zoology Chinese Academy of Sciences

Pluripotent stem cells(PSCs) are cells that can differentiate into any type of cells in the body, therefore have valuable promise in regenerative medicine of cell replacement therapies and tissue/organ engineering. PSCs can be derived either from early embryos or directly from somatic cells by epigenetic reprogramming that result in customized cells from patients. Here we summarize the methods of deriving PSCs, the various types of PSCs generated with different status, and their versatile applications in both clinical and embryonic development studies. We also discuss an intriguing potential application of PSCs in constructing tissues/organs in large animals by interspecies chimerism. All these emerging findings are likely to contribute to the breakthroughs in biological research and the prosperous prospects of regenerative medicine.

关键词： pluripotent stem cells regenerative medicine reprogramming interspecies chimerism

Holographic energy loss near critical temperature in an anisotropic background

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Communications in Theoretical Physics 2023年第10期75卷 90-99页

作者： qi zhou Ben-Wei Zhang Key Laboratory of Quark and Lepton Physics(MOE)and Institute of Particle Physics Central China Normal UniversityWuhan 430079China

We study the energy loss of a quark moving in a strongly coupled quark gluon plasma under the influence of *** heavy quark drag force,diffusion coefficient,and jet quenching parameter are calculated using the Einstein–Maxwell-dilaton model,where the anisotropic background is characterized by an arbitrary dynamical parameter *** findings indicate that as the anisotropic factor A increases,the drag force and jet quenching parameter both increase,while the diffusion coefficient ***,we observe that the energy loss becomes more significant when the quark moves perpendicular to the anisotropy direction in the transverse *** enhancement of the rescaled jet quenching parameters near critical temperature Tc,as well as drag forces for a fast-moving heavy quark is observed,which presents one of the typical features of quantum chromodynamics phase transition.

关键词： EMD model energy loss jet quenching parameter drag force jet quenching critical temperature anisotropic QGP AdS/CFT

DIFFERENT TYPES OF MICROFIBRILLATED CELLULOSE AS FILLER MATERIALS IN POLYSODIUM ACRYLATE SUPERABSORBENTS

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Chinese Journal of Polymer Science 2011年第4期29卷 407-413页

作者： Mikael Larsson qi zhou Anette Larssona Department of Chemical and Biological Engineering Chalmers University of Technology 41296 Gothenburg Sweden Wallenberg Wood Science Center Royal Institute of Technology SE-100 44 Stockholm Sweden School of Biotechnology Royal Institute of Technology SE-106 91 Stockholm Sweden

Three types of microfibrillated cellulose （MFC） with differences in structure and surface charge were used at low concentration as filler materials in polysodium acrylate superabsorbents （SAPs）. The swelling of the composite hydrogels was determined in 0.9% NaCl solution as well as in deionized water. The shear modulus of the samples was determined through uniaxial compression analysis after synthesis and after swelling in 0.9% NaC1 solution. Furthermore, the ability to retain filler effects after washing was investigated. The results showed that all of the investigated MFCs had a strong reinforcing effect on the shear modulus after synthesis. The filler effect on swelling and on the associated shear modulus of swollen samples showed a more complicated dependence on structure and surface charge. Finally, it was found that the filler effects were reasonably retained after washing and subsequent drying. The results confirm that MFC holds great potential as a filler material in superabsorbent applications. Furthermore, the results provide some insight on how the structural properties and surface charge of MFC will affect gel properties depending on swelling conditions. This information should be useful in evaluating the use of different types of MFC in future applications.

关键词： SAP MFC Microfibrillated cellulose Polyacrylic acid Hydrogels.

Analogue Black Holes in Reactive Molecules

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Chinese Physics Letters 2023年第5期40卷 1-5页

作者： Ren Zhang Chenwei Lv qi zhou School of Physics Xi’an Jiaotong UniversityXi’an 710049China Department of Physics and Astronomy Purdue UniversityWest LafayetteIN47907USA Purdue Quantum Science and Engineering Institute Purdue UniversityWest LafayetteIN47907USA

We show that reactive molecules with a unit probability of reaction naturally provide a simulator of some intriguing black hole *** unit reaction at the short distance acts as an event horizon and delivers a one-way traffic for matter waves passing through the potential barrier when two molecules interact by high partialwave scatterings or dipole-dipole *** particular,the scattering rate as a function of the incident energy exhibits a thermal-like distribution near the maximum of the interaction energy in the same manner as a scalar field scatters with the potential barrier outside the event horizon of a black *** a thermal-like scattering can be extracted from the temperature-dependent two-body loss rate measured in experiments on KRb and other molecules.

关键词： horizon outside passing

Cellular models for disease exploring and drug screening

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Protein & Cell 2010年第4期1卷 355-362页

作者： Zhi-kun Li qi zhou State Key Laboratory of Reproductive Biology Institute of ZoologyChinese Academy of SciencesBeijing 100101China Graduate School Chinese Academy of SciencesBeijing 100049China

The biopharmaceutical industry has been greatly promoted by the application of drug and disease models,including both animal and cellular *** particular,the emergence of induced pluripotent stem cells(iPSC)makes it possible to create a large number of diseasespecific cells in *** review introduces the most widely applied models and their specialties.

关键词： cellular models disease models induced pluripotential stem cells neural diseases

Effect of Fe(Ⅲ) on the bromate reduction by humic substances in aqueous solution

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Journal of Environmental Sciences 2008年第3期20卷 257-261页

作者： XIE Li SHANG Chii zhou qi State Key Laboratory of Pollution Control and Resources Reuse Tongji University Shanghai 200092 China Department of Civil Engineering Hong Kong University of Science and Technology Hong Kong 852 China

Humic substances are ubiquitous redox-active organic compounds of environment. In this study, experiments were conducted to determine the reduction capacity of humic acid in the man-ix of bromate and Fe（Ⅲ） solutions and the role of Fe（Ⅲ） in this redox process. The results showed that the humic acid regenerated Fe（Ⅱ） and reduced bromate abiotically. The addition of Fe（Ⅲ） could accelerate the bromate reduction rate by forming humic acid-Fe（Ⅲ） complexes. Iron species acts as electron mediator and catalyst for the bromate reduction by humic acid, in which humic acid transfers electrons to the complexed Fe（Ⅲ） to form Fe（Ⅱ）, and the regenerated Fe（Ⅱ） donate the electrons to bromate. The kinetics study on bromate reduction further indicated that bromate reduction by humic acid-Fe（Ⅲ） complexes is pH dependent. The rate decreased by 2-fold with the increase in solution pH by one unit. The reduction capacity of Aldrich humic acid was observed to be lower than that of humic acid or natural organic matter of Suwanne River, indicating that such redox process is expected to occur in the environment.

关键词： humic acid Fe(Ⅲ) ion bromate reduction electron mediator