Chunhong Li

ORCID: 0000-0002-2075-5211
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Research Areas
  • Hydrology and Watershed Management Studies
  • Iron-based superconductors research
  • Environmental and Agricultural Sciences
  • Cryospheric studies and observations
  • Flood Risk Assessment and Management
  • Organic Electronics and Photovoltaics
  • Environmental Changes in China
  • Topological Materials and Phenomena
  • Rare-earth and actinide compounds
  • Catalytic Processes in Materials Science
  • Gold and Silver Nanoparticles Synthesis and Applications
  • Nonlinear Differential Equations Analysis
  • Thin-Film Transistor Technologies
  • Physics of Superconductivity and Magnetism
  • 2D Materials and Applications
  • Graphene research and applications
  • Catalysis and Hydrodesulfurization Studies
  • Metal-Organic Frameworks: Synthesis and Applications
  • Molecular Junctions and Nanostructures
  • Differential Equations and Boundary Problems
  • Climate change and permafrost
  • Chemical Synthesis and Reactions
  • Plant Molecular Biology Research
  • Arctic and Antarctic ice dynamics
  • Remote Sensing and Land Use

Institute of Physics
2012-2024

Chinese Academy of Sciences
2014-2024

Southwest Medical University
2024

NARI Group (China)
2008-2024

Jiyang College of Zhejiang A&F University
2024

Institute of Tibetan Plateau Research
2017-2023

Shenyang Aerospace University
2023

National Laboratory for Superconductivity
2011-2020

University of Chinese Academy of Sciences
2017-2020

Nanning Normal University
2020

Cotton (Gossypium spp) plants produce seed trichomes (cotton fibers) that are an important commodity worldwide; however, genes controlling cotton fiber development have not been characterized. In Arabidopsis thaliana the MYB gene GLABRA1 (GL1) is a central regulator of trichome development. Here, we show promoter gene, RD22-like1 (RDL1), contains homeodomain binding L1 box and motif confer trichome-specific expression in Arabidopsis. A protein GaMYB2/Fiber Factor 1 transactivated RDL1 both...

10.1105/tpc.104.024844 article EN The Plant Cell 2004-09-01

ABSTRACT In this paper, we investigate the spatiotemporal characteristics and trends of snow cover fraction (SCF) in Tibetan Plateau (TP) seven upstream river basins (Yellow, Yangtze, Mekong, Salween, Brahmaputra, Indus Yarkant) by employing Moderate Resolution Imaging Spectroradiometer (MODIS) data for 2001–2014. The possible linkage between SCF, temperature precipitation changes over TP individual is also investigated. Results suggest that distribution exhibit a large heterogeneity with...

10.1002/joc.5204 article EN International Journal of Climatology 2017-07-14

Single crystals of Rb{0.8}Fe2Se2 are successfully synthesized with the superconducting transition temperatures T_c{onset}= 31 K and T_c{zero}= 28 K. A clear anomaly resistivity was observed in normal state at about 150 K, as found a similar system KxFe2Se2. The upper critical field has been determined magnetic along ab-plane c-axis, yielding an anisotropy 3.5. angle dependent measured below T_c allow perfect scaling feature based on anisotropic Ginzburg-Landau theory, leading to consistent...

10.1103/physrevb.83.184521 article EN Physical Review B 2011-05-26

We used high-resolution scanning tunneling spectroscopy to study the hole-doped iron pnictide superconductor Ba$_{0.6}$K$_{0.4}$Fe$_{2}$As$_{2}$ ($T_c=38$ K). Features of a bosonic excitation (mode) are observed in measured quasiparticle density states. The features intimately associated with superconducting order parameter and have mode energy $\sim$14 meV, similar spin resonance by inelastic neutron scattering. These results indicate strong electron-spin coupling pictnide superconductors,...

10.1103/physrevlett.108.227002 article EN publisher-specific-oa Physical Review Letters 2012-05-31

Development of effective catalysts for oxygen reduction reaction (ORR) plays a critical role in the applications range electrochemical energy technologies. In this study, thin-layered black phosphorus (TLBP) was used as unique supporting substrate deposition metal nanoparticles (MNPs, M = Pt, Ag, Au), and resulting M-TLBP nanocomposites were found to exhibit apparent ORR activity that readily manipulated by interfacial charge transfer from TLBP MNPs. This confirmed results X-ray...

10.1021/acsami.9b05471 article EN ACS Applied Materials & Interfaces 2019-06-14

We report the anisotropic magnetotransport measurement on a noncompound band semiconductor black phosphorus (BP) with magnetic field $\mathbit{B}$ up to 16 Tesla applied in both perpendicular and parallel electric current $\mathbit{I}$ under hydrostatic pressures. The BP undergoes topological Lifshitz transition from zero-gap Dirac semimetal state at critical pressure ${P}_{c}$, characterized by weak localization-weak antilocalization low fields emergence of nontrivial Berry phase...

10.1103/physrevb.95.125417 article EN Physical review. B./Physical review. B 2017-03-10

Hexagonal Mg(OH)<sub>2</sub> nanoflakes were synthesized, which showed excellent catalytic activities for the transesterification of dimethyl carbonate with phenol.

10.1039/c4qi00113c article EN Inorganic Chemistry Frontiers 2014-11-12

We report the observation of an extremely large magnetoresistance (up to 15 000 000% at 1.8 K in a magnetic field 9 T) simple chemical element, gray arsenic, which magnitude increases as approximately square strength without any signs saturation. The Hall-effect study confirms that arsenic is nearly perfect ``compensated semimetal,'' with small concentration very mobile carriers, lead magnetoresistance. analysis Shubnikov--de Haas oscillations reveals nontrivial \ensuremath{\pi} Berry phase,...

10.1103/physrevb.95.115119 article EN Physical review. B./Physical review. B 2017-03-10

Single-crystal-like organic heterojunction films of copper phthalocyanine (CuPc) and copper-hexadecafluoro-phthalocyanine (F16CuPc) were fabricated by weak-epitaxy-growth method. The intrinsic properties revealed through threshold voltage shift field-effect transistors measurement single-crystal-like diodes. At both sides the interface 40 nm thick charge accumulation layers formed, which showed that long carriers’ diffusion length is due to high crystallinity low density deep bulk traps...

10.1063/1.3118581 article EN Applied Physics Letters 2009-04-06

We report a comprehensive investigation of the electrical, thermal, and thermoelectric transport properties bulk single-crystalline black phosphorus in wide temperature (2--300 K) field (0--9 T) ranges. Electrical below $T\ensuremath{\approx}$ 250 K is found to be dominated by extrinsic hole-type charge carriers with large mobility exceeding ${10}^{4}$ ${\mathrm{cm}}^{2}$/V s at low temperatures. While thermal measurements reveal an enhanced in-plane conductivity maximum...

10.1103/physrevb.97.045209 article EN Physical review. B./Physical review. B 2018-01-26

Uniform cauliflower-like and rough nano-spheres of CeO<sub>2</sub>–ZrO<sub>2</sub> composites were synthesized by a facile hydrothermal process using only urea as mineralizer without any surfactant or template.

10.1039/c5ra19271d article EN RSC Advances 2015-01-01

The feasibility of controllable synthesis nano-crystalline ZrO2 powders using vapor-phase hydrolysis was studied. XRD, SEM, TEM, BET and TG-DTA methods were used to investigate the phase composition, particle size, agglomeration. formation process nano-particles also analyzed with classic Smoluchowski theory, coupled cluster theory [CCSD(T)]/aT and/or Møller–Plesset perturbation (MP2)/aT. results show that morphology size very much dependent on ratio ZrCl4 : H2O, which played an important...

10.1039/c3ta13571c article EN Journal of Materials Chemistry A 2013-10-29

Surface-enhanced Raman scattering (SERS) is of great importance for the sensitive, rapid, and repeatable detection target analytes. The electromagnetic enhancement has a major contribution to signal in SERS which critically dependent on micro-/nanomorphology noble metal (e.g., Au Ag) film substrates. Herein, Ag nanocubes/polyelectrolyte/Au (Ag/PE/Au) sandwich-structured fabricated by layer-by-layer deposition then utilized as an efficient substrate coupling localized surface plasmons (LSPs)...

10.1021/acsanm.9b02579 article EN ACS Applied Nano Materials 2020-01-21

One of the greatest bottlenecks in producing recombinant proteins Escherichia coli is that over-expressed target are mostly present an insoluble form without any biological activity. DCase (N-carbamoyl-D-amino acid amidohydrolase) important enzyme involved semi-synthesis β-lactam antibiotics industry. In study, order to determine amino sites responsible for solubility DCase, error-prone PCR and DNA shuffling techniques were applied randomly mutate its coding sequence, followed by efficient...

10.1042/bj20061457 article EN Biochemical Journal 2007-02-26

Flexible vanadyl-phthalocyanine (VOPc) thin-film transistors are fabricated by the weak epitaxy growth (WEG) method. The devices show a mobility of 0.5 cm2/Vs, an on/off ratio 105 and low leakage current 10−9 A. performances exhibit strong dependence on bending conditions reversible change can be found when strain is less than 1.5%. This results from trap density calculated subthreshold slopes. indicate that VOPc films WEG method have good durability to flexing possess great potential in...

10.1088/0256-307x/27/2/028502 article EN Chinese Physics Letters 2010-02-01

By direct quenching or post-annealing followed by quenching, we have successfully obtained a series of K x Fe2−y Se2 samples with different properties. It is found that the directly quenched in cooling process growth show superconductivity and one cooled furnace insulating even though their stoichiometries are similar. The sample can be tuned from to superconducting then quenching. Based on these two points, conclude state metastable, key point achieve state. similar all non-superconducting...

10.1080/14786435.2012.681711 article EN The Philosophical Magazine A Journal of Theoretical Experimental and Applied Physics 2012-04-30

The Laohahe basin, north of China In a changing environment, some river's hydrological regimes have significantly changed and may threatened river ecosystem. Therefore, it is urgent to improve our understanding for the driving mechanism evolution regimes. this study, comprehensive comparison was carried out assess application Long Short-Term Memory (LSTM) Variable Infiltration Capacity (VIC) model in ecohydrological alteration attribution. Firstly, indicators changes were evaluated,...

10.1016/j.ejrh.2024.101722 article EN cc-by-nc-nd Journal of Hydrology Regional Studies 2024-02-29
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