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Rational design of bimetallic catalysts for electrochemical CO_(2)reduction reaction:A review

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Science China Chemistry 2023年第5期66卷 1288-1317页

作者： Minhan Li jia-Nan zhang College of Materials Science and Engineering Zhengzhou UniversityZhengzhou 450001China

The electrochemical CO_(2)reduction reaction(eCO_(2)RR)is a compelling approach to convert CO_(2)into high-value fuels and chemicals using renewable *** rational design of catalysts is of great importance for achieving outstanding performance of this ***-based catalysts have been drawing enormous attention in eCO_(2)RR due to their excellent catalytic performance and flexible *** the pursuit of overcoming the inherent disadvantages of monometallic catalysts and achieving breakthroughs in the catalytic performance,bimetallic strategy has been receiving extensive concerns and achieving remarkable results over *** this review,we attempt to give a comprehensive review on the bimetallic catalysts that are used for eCO_(2)*** effects in bimetallic catalysts that contribute to the enhanced eCO_(2)RR performance are first analyzed,demonstrating the superiority of bimetallic ***,the structural design of bimetallic catalysts is discussed as it plays a key role in eCO_(2)***,the current advances and rules of selectivity of bimetallic catalysts in eCO_(2)RR are summarized based on the selectivity *** reviewing efforts devoted in this field,this review is believed to present a timely overview of the progress of bimetallic eCO_(2)RR catalysts and to offer potential future directions in the aim of developing highly efficient catalysts for eCO_(2)RR.

关键词： electrochemical CO_(2)reduction bimetallic catalyst electronic effect tandem effect structural design

Shear-induced Precursors of Fibrillar Crystals of Poly(butene-1):A Rheological Study

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Chinese Journal of Polymer Science 2022年第6期40卷 618-623页

作者： jia-Qi zhang Quan Chen State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China University of Science and Technology of China Hefei 230026China

Strong preshear flow stretches poly(butene-1)chains to form flow-induced precursors of fibrillar *** formation leads to further growth of shear/normal stress after the stress reaches the steady *** this study,stress relaxation measurements are performed after intervals of a strong flow during which the precursors *** small-angle X-ray scattering(SAXS)and wide-angle X-ray diffraction(WAXD)measurements are conducted to characterize the crystalline structure formed after the preshear and relaxation processes,each of different periods.A combination of the stress relaxation and scattering results reveal that for the precursors formed within 5 s,the stress can fully relax and the orientation of the subsequent crystals(formed upon quenching the sample at different stress levels)decays gradually with the *** comparison,for those precursors formed after 5 s,the stress hardly relaxes during~10^(4) s,and the orientation of the subsequent crystals hardly decays,suggesting that the precursors have been somehow stabilized during the *** features have been discussed with respect to the percolation of the precursors to form a reversible network.

关键词： PB-1 Rheology Precursor Fibrillar crystal

Improving inherent soil productivity underpins agricultural sustainability

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Pedosphere 2023年第1期33卷 3-5页

作者： jia Bao zhang State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil ScienceChinese Academy of SciencesNanjing 210008(China)

There is now increasing attention to how to raise global food production and security due to the expanding population *** and high yield of crops depends on soil quality improvement,which relies on inherent soil productivity *** in inherent soil productivity can provide a range of benefits for soil structure,microorganisms,nutrient cycling,and carbon *** underlying mechanisms related to inherent soil productivity improvement under different agricultural management practices on large scales need to be further ***,to achieve agricultural sustainability,efforts need to focus on developing technologies related to straw return,tillage management,and cover cropping and understanding their relationships with inherent soil productivity improvement.

关键词： soil crops return

Microstructure and properties evolution of Nb-bearing medium Cr wear-resistant cast steel during heat treatment

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Journal of Iron and Steel Research International 2021年第6期28卷 739-751页

作者： jia-cheng zhang Tuo zhang Yi-tao Yang School of Materials Science and Engineering Shanghai UniversityShanghai 200444China

The effect of quenching temperature and cooling conditions on the microstructure and mechanical properties of a 0.2%Nb medium chromium wear-resistant cast steel was *** microstructure,carbides and volume fraction of retained austenite were characterized using the optical microscope,scanning electron microscope,transmission electron microscope and X-ray *** influence of heat treatment on hardness,impact toughness and tensile properties of test steel was *** can be observed that lath martensite can be obtained under the condition of air cooling and oil cooling upon austenitizing in the range of 900–1020℃.Total carbide content of 0.2–1.1 wt.%under air cooling is more than that under oil cooling due to the lower cooling ***6C5,M23C6 and M7C3 were found at lower austenitizing temperature,of which niobium carbide mostly located at grain boundaries,while chromium carbides were uniformly distributed in the matrix with the size of 20–50 *** chromium carbides are basically dissolved into the matrix in test steel austenitized at 1020°***,the negligible growth of prior austenite grain size is *** austenitized at 1020℃ and cooled in air+tempered at 200℃ has a best combination of hardness,plasticity and tensile strength due to fine grain size and more amount of retained *** this condition,the hardness is 58 HRC,the impact toughness is 22.92 J/cm^(2),and the tensile strength is 1136.9 MPa.

关键词： Wear-resistant steel Quenching temperature Cooling condition Carbide Retained austenite Strengthening Toughening

Global patterns of phosphorus transformation in relation to latitude,temperature and precipitation

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Pedosphere 2021年第1期31卷 214-220页

作者： jia-Zhong zhang Ocean Chemistry and Ecosystems Division Atlantic Oceanographic and Meteorological LaboratoryNational Oceanic and Atmospheric AdministrationMiami FL 33149USA

Dear Editor,Phosphorus (P) is essential and often a limiting nutrient for biological production on land and in the seas (Elser et al., 2007). The biologically available P to terrestrial and aquatic ecosystems ultimate... 详细信息

关键词： latitude phosphorus transformation

Applications of the SW96 formulation in the thermodynamic calculation of fluid inclusions and mineral-fluid equilibria

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Geoscience Frontiers 2017年第6期8卷 1397-1403页

作者： jia zhang Shide Mao School of Earth Sciences and Resources China University of GeosciencesBeijing 100083China

The SW96 formulation explicit in Helmholtz free energy proposed by Span and Wagner(1996)is the most accurate multifunction equation of state of CO_2 fluid,from which all thermodynamic properties can be obtained over a wide temperature-pressure range from 216.592 to 1100 K and from 0 to 8000 bar with or close to experimental *** paper reports the applications of the SW96 formulation in fluid inclusions and mineral-fluid equilibria.A reliable and highly efficient algorithm is presented for the saturated properties of CO_2 so that the formulation can be conveniently applied in the study of fluid inclusions,such as calculation of homogenization pressures,homogenization densities(or molar volumes),volume fractions of vapor phase and ***,the univariant curves of some typical decarbonation reactions of minerals are calculated with the SW96 formulation and relevant thermodynamic models of *** computer code of the SW96 formulation can be obtained from the corresponding author.

关键词： Equation of state CO2 Fluid inclusion Application

Azimuthal elastic impedance-based Fourier coefficient variation with angle inversion for fracture weakness

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Petroleum Science 2020年第1期17卷 86-104页

作者： Lin Li jia-jia zhang Xin-Peng Pan Guang-Zhi zhang School of Geosciences China University of Petroleum(East China)Qingdao 266580ShandongChina School of Geoscience and Info-Physics Central South UniversityChangsha 410082HunanChina Laboratory for Marine Mineral Resources Qingdao National Laboratory for Marine Science and TechnologyQingdao 266071ShandongChina

Quantitative inversion of fracture weakness plays an important role in fracture *** reservoirs with a set of vertical fractures as horizontal transversely isotropic media,the logarithmic normalized azimuthal elastic impedance(EI)is rewritten in terms of Fourier coefficients(FCs),the 90°ambiguity in the azimuth estimation of the symmetry axis is resolved by judging the sign of the second FC,and we choose the FCs with the highest sensitivity to fracture weakness and present a feasible inversion workflow for fracture weakness,which involves:(1)the inversion for azimuthal EI datasets from observed azimuthal angle gathers;(2)the prediction for the second FCs and azimuth of the symmetry axis from the estimated azimuthal EI datasets;and(3)the estimation of fracture weakness combining the extracted second FCs and azimuth of the symmetry axis iteratively,which is constrained utilizing the Cauchy sparse regularization and the low-frequency regularization in a Bayesian *** on synthetic and field data demonstrate that the 90°ambiguity in the azimuth estimation of the symmetry axis has been removed,and reliable fracture weakness can be obtained when the estimated azimuth of the symmetry axis deviates less than 30°,which can guide the prediction of fractured reservoirs.

关键词： Fracture weakness Azimuth of the symmetry axis Azimuthal Fourier coefficients HTI Azimuthal elastic impedance

Metal-based inorganic nanocrystals for biological sonodynamic therapy applications:recent progress and perspectives

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Rare Metals 2024年第2期43卷 413-430页

作者： Dong Wang jia-Tao zhang Institute of Medical-Industrial Integration Beijing Key Laboratory of Structurally Controllable Advanced Functional Materials and Green ApplicationsSchool of Materials Science and EngineeringBeijing Institute of TechnologyBeijing100081China Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering Ministry of Industry and Information TechnologySchool of Chemistry and Chemical EngineeringBeijing Institute of TechnologyBeijing100081China

With the fast development of technology for the treatment of tumor and bacteria,photo-therapeutic strate-gies emerge as a kind of highly effective and common treatment,but the low tissue penetration depth of light limits their *** therapy(SDT),as an efficient and non-invasive treatment,attracts more people's attention due to the inherent property of high tissue *** soft tissue penetration depth of ultrasound(US)can even reach more than 10 cm,which has great advantage over that of ***,many sonosensitizers are studied and applied to SDT-based ***-based inorganic nanocrystals are able to generate more reactive oxygen species(ROS)due to the special composition and band *** representative achievements and the specific functions of the nanocrystals sonosensitizers are summarized in this work,and the relationship of structure/composition-SDT performance and the internally regulated composite is ***-gistic effects of SDT in combination with other therapeutic modalities are mainly *** the same time,the critical and potential issues and future perspectives are addressed.

关键词： Metal-based inorganic nanocrystals Sonodynamic therapy(SDT) Tumor treatment Antibacteria

The role of Debye mass in the chiral crossover in a strong magnetic field

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Communications in Theoretical Physics 2022年第10期74卷 68-75页

作者： jia zhang Xin-jian Wen Institute of Theoretical Physics State Key Laboratory of Quantum Optics and Quantum Optics DevicesShanxi UniversityTaiyuanShanxi 030006China

In this paper,the Debye mass of quarks is investigated in the Nambu–Jona-Lasinio model at zero and nonzero chemical *** a uniform plasma,the Debye mass usually behaves as a monotonous increasing function of the temperature,the chemical potential and the magnetic *** the fixed coupling interaction G,we find that the magnetic catalysis(MC)on the occurrence of the chiral restoration could be revealed by the susceptibility of the Debye mass dmD/dT at low chemical potential and by the quantity TdmD/dT in the region of moderate ***,the inverse MC is realized under a thermomagnetic coupling constant G(B,T)by the behavior of the Debye mass at both zero and nonzero chemical potentials.

关键词： chiral restoration strong magnetic field Debye mass Nambu-Jona-Lasinio