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The influence of hydrochar from biogas digestate on soil improvement and plant growth aspects

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Biochar 2020年第2期2卷 177-194页

作者： Megan de Jager Michael Rohrdanz Luise Giani Carl Von Ossietzky universitat Institut für Biologie und UmweltwissenschaftenOldenburgGermany

Hydrochar(HC),produced by hydrothermal carbonization,offers technical advantages over biochar(BC)produced by pyrolysis,and is suitable for soil amelioration,carbon sequestration,and enhanced plant *** grain size has been shown to influence nutrient retention,microbial colonization and aggregate formation;however,similar research for HC is *** trials were conducted to investigate the influence of HC grain size[coarse(6.3-2 mm),medium(2-0.63 mm)and fine(50%in all *** effect on NO_(3)^(−)content was indeterminable,while there was little to no effect on biom

关键词： Hydrochar Soil improvement Grain size Plant available nutrients

Regulation of neural stem/progenitor cell functions by P2X and P2Y receptors

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Neural Regeneration Research 2017年第3期12卷 395-396页

作者： Peter Illes Patrizia Rubini Rudolf-Boehm-Institut fur Pharmakologie und Toxikologie Universitat LeipzigLeipzigGermany

Neural stem/progenitor cells：Radial glial cells constitute multipotent cells in the ventricular zone,lining the wall of the lateral ventricle of the embryonic *** have the capacity to give rise to cells belonging to ... 详细信息

关键词： NSCs cell Regulation of neural stem/progenitor cell functions by P2X and P2Y receptors stem

Chapter model systems in heterogeneous catalysis at the atomic level: a personal view

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Science China Chemistry 2020年第4期63卷 426-447页

作者： Hans-Joachim Freund Markus Heyde Helmut Kuhlenbeck Niklas Nilius Thomas Risse Thomas Schmidt Shamil Shaikhutdinov Martin Sterrer Fritz Haber Institute of the Max Planck Society Faradayweg 4-6Berlin D-14195Germany Fakultat V-Mathematik und Naturwissenschaften Carl von Ossietzky Universitat OldenburgGermany Institut fur Chemie und Biochemie Freie UniversitatBerlinGermany Institute of Physics University of GrazGrazAustria

The review presents an overview of studies in the surface science of oxide and related surfaces with an emphasis of the studies performed in the authors’ group. Novel instruments and technique developments, as well as their applications are reported, in an attempt to cover studies on model systems of increasing complexity, including some of the key ingredients of an industrially applied heterogeneous catalyst and its fabrication. The review is intended to demonstrate the power of model studies in understanding heterogeneous catalysis at the atomic level. The studies include those on supported nano-particles, both, prepared in vacuum and from solution, interaction of surfaces and the underlying bulk with molecules from the gas phase, strong metal support interaction, as well as the first attempt to include studies on reactions in confined spaces.

关键词： model catalysts oxide surfaces structure and spectroscopy supported nanoparticles reactions in the confined space

In Situ Current / Voltage Characterisation of Electrochemically Grown Metal / n-Si(111) Interfaces

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In Situ Current / Voltage Characterisation of Electrochemica...

Modified Lagrangian and Least Root Approaches for General Nonlinear Optimization Problems

2～(nd) Spring Meeting of the International Society of Electrochemistry

作者： M.Hugelmann P.Hugelmann W.Schindler Institut fur Hochfrequenztechnik und Quantenelektronik universitat karlsruhe(TH)Kaiserstrasse 12 76131 karlsruhe(Germany) Institut fur Hochfrequenztechnik und Quantenelektronik universitat karlsruhe(TH)Kaiserstrasse 12 76131 karlsruhe(Germany) Institut fur Hochfrequenztechnik und Quantenelektronik universitat karlsruhe(TH)Kaiserstrasse 12 76131 karlsruhe(Germany)

In view of novel electronic applications utilizing size effects in the nanometer range metalnanostructures are required to be deposited onto semiconducting or isolating surfaces [1].Despite the importance of nanometer sized metal structures deposited onto semiconductingsurfaces only few scanning probe microscope measurements have been performed toinvestigate the fundamental aspects of metal deposition onto semiconducting surfaces [2-4]

关键词： STM In Situ Current Interfaces Voltage Characterisation of Electrochemically Grown Metal

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Acta Mathematicae Applicatae Sinica 2002年第1期18卷 147-152页

作者： W.Oettli Fakultat fur Mathematik und Informatik Universitat Mannheim68131 MannheimGermany

In this paper we study nonlinear Lagrangian methods for optimization problems with side constraints. Nonlinear Lagrangian dual problems are introduced and their relations with the original problem are established. Mor... 详细信息

关键词： Generalized Lagrangian Zero duality gap least root approach

Tracking the phase transformation and microstructural evolution of Sn anode using operando synchrotron X-ray energy-dispersive diffraction and X-ray tomography

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Journal of Energy Chemistry 2023年第1期76卷 429-437,I0011页

作者： Kang Dong Fu Sun Andre Hilger Paul H.Kamm Markus Osenberg Francisco Garcia-Moreno Ingo Manke Institute of Applied Materials Helmholtz-Zentrum Berlin fur Materialien und EnergieHahn-Meitner-Platz 1Berlin 14109Germany Institute of Materials Science and Technology Technische Universitat BerlinHardenbergstraβe 36Berlin 10623Germany Qingdao Institute of BioEnergy and Bioprocess Technology Chinese Academy of Sciences189 Songling RoadQingdao 266101ShandongChina

Tin(Sn)holds great promise as an anode material for next-generation lithium(Li)ion batteries but suffers from massive volume change and poor cycling *** clarify the dynamic chemical and microstructural evolution of Sn anode during lithiation and delithiation,synchrotron X-ray energydispersive diffraction and X-ray tomography are simultaneously employed during Li/Sn cell *** intermediate Li-Sn alloy phases during de/lithiation are identified,and their dynamic phase transformation is unraveled which is further correlated with the volume variation of the Sn at particle-and ***,we find that the Sn particle expansion/shrinkage induced particle displacement is anisotropic:the displacement perpendicular to the electrode surface(z-axis)is more pronounced compared to the directions(x-and y-axis)along the electrode *** anisotropic particle displacement leads to an anisotropic volume variation at the electrode level and eventually generates a net electrode expansion towards the separator after cycling,which could be one of the root causes of mechanical detachment and delamination of electrodes during long-term *** unraveled chemical evolution of Li-Sn and deep insights into the microstructural evolution of Sn anode provided here could guide future design and engineering of Sn and other alloy anodes for high energy density Li-and Na-ion batteries.

关键词： Sn anode Li-Sn phase transformation X-ray tomography Operando X-ray diffraction Anisotropic displacement Digital volume correlation(DVC)

SOLUBILITIES OF CARBON DIOXIDE IN MIXTURES OF n-DECANE-n-HEXADECANE AND n-HEPTANE-TOLUENE

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Chinese Journal of Chemical Engineering 1996年第2期4卷 77-82页

作者：章连众韩世钧 Helmut Knapp Institut for Thermodynamik und Reaklionstechnik Technische Universitat Berlin Straβe des 17. Juni 135 D-10623 Berlin Germany

Solubilities of CO2 in binary mixtures of n-decane-n-hexadecane and n-heptane-toluenewere measured in a glass apparatus by a synthetic ***’s constants at several temperaturesand solvent compositions were *** the Henry’s constants of CO2 in mixtures of decaneand hexadecane can be satisfactorily predicted by a simple linear interpolation,prediction of Henry’sconstants for CO2 in mixtures of heptane and toluene requires excess Gibbs energy of the solvent *** standard thermodynamic functions of solution（ΔH0,ΔG0,and ΔS0）were reported.

关键词： carbondioxide n-decane n-hexadecane n-heptane toluene gas solubility thermodynamic properties

Solid-state emissive biphenylene bridged bisaroyl-S,N-ketene acetals as distinct aggregation-induced enhanced emitters and fluorometric probes

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Aggregate

Aggregate 2021年第5期2卷 179-184页

作者： Lukas Biesen Thomas J.J.Muller Institut fur Organische und Makromolekulare Chemie Heinrich-Heine-Universitat DusseldorfDüsseldorfGermany

Biphenylene bridged bisaroyl-S,N-ketene acetals can be readily synthesized by a one-pot Masuda borylation-Suzuki arylation sequence,thus,yielding a library of 20 bisaroyl-S,N-ketene acetals with tunable solid-state emission and aggregationinduced enhanced emission characteristics depending on the para substituents in the starting *** applications as fluorometric probe of alcoholic beverages are outlined.

关键词： aggregation-induced emission aroyl-S N-ketene acetals liquor sensors one-pot reaction solid-state

Dynamic isotope effects on relaxation of quadrupolar nuclei in 12 simple organic molecules

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Science China Chemistry 1995年第4期38卷 393-400页

作者：毛希安 andM.Holz Laboratory of Magnetic Resonance and Atomic and Molecular Physics Wuhan Institute of Physics Chinese Academy of Sciences Wuhan 430071 China Institur fuer Physikalishe Chinese und Elektrochemie der Universitaet karlsruhe 75000 Karlsruhe Bundesrepublik Deutschland

Dynamic isotope effects on relaxation rate of quadrupolar nuclei are preliminarily reported. The relaxation rates of 17O and 14N in 12 simple organic molecules and their 18 corresponding deuterated species have been systematically measured. The principal components of the molecular inertia tensors have been calculated. The results show that there is an intrinsic correlation between the dynamic isotope effects of the relaxation rate and the static isotope effects of the molecular inertia. The concepts of molecular collision frequency and translation-rotation coupling have been introduced into the NMR relaxation theory. Therefore, a reasonable explanation of the experimental results has been given.

关键词： relaxation of quadrupolar nuclei isotope effect molecular motions moment of inertia.