D-Index & Metrics Best Publications

D-Index & Metrics D-index (Discipline H-index) only includes papers and citation values for an examined discipline in contrast to General H-index which accounts for publications across all disciplines.

Discipline name D-index D-index (Discipline H-index) only includes papers and citation values for an examined discipline in contrast to General H-index which accounts for publications across all disciplines. Citations Publications World Ranking National Ranking
Chemistry D-index 50 Citations 7,138 206 World Ranking 10804 National Ranking 842

Overview

What is she best known for?

The fields of study she is best known for:

  • Quantum mechanics
  • Organic chemistry
  • Oxygen

Keiko Nishikawa focuses on Ionic liquid, Scattering, Analytical chemistry, Small-angle X-ray scattering and Inorganic chemistry. Her research in Ionic liquid intersects with topics in Phase, Molecular vibration, Raman spectroscopy and Physical chemistry. Her Scattering study combines topics in areas such as Intensity, Thermodynamics, Supercritical fluid and Debye.

Her Analytical chemistry research is multidisciplinary, incorporating perspectives in Energy, Small-angle scattering and Atomic physics. Her work carried out in the field of Small-angle X-ray scattering brings together such families of science as Fiber, Diffractometer and Coal. Her research in Inorganic chemistry intersects with topics in Fructose, Liquid density and Chloride.

Her most cited work include:

  • Mixing Schemes in Ionic Liquid−H2O Systems: A Thermodynamic Study (154 citations)
  • Structure of an ionic liquid, 1-n-butyl-3-methylimidazolium iodide, studied by wide-angle X-ray scattering and Raman spectroscopy (151 citations)
  • An Ordered Water Molecular Assembly Structure in a Slit-Shaped Carbon Nanospace (138 citations)

What are the main themes of her work throughout her whole career to date?

Her main research concerns Analytical chemistry, Ionic liquid, Scattering, Small-angle X-ray scattering and Crystallography. The concepts of her Analytical chemistry study are interwoven with issues in Spectral line, Differential scanning calorimetry, Diffraction and Aqueous solution. Her Ionic liquid research incorporates elements of Inorganic chemistry, Bromide, Phase, Physical chemistry and Ion.

Her Scattering research is multidisciplinary, incorporating perspectives in X-ray crystallography, Intensity, X-ray and Supercritical fluid. In her work, Mineralogy is strongly intertwined with Carbon, which is a subfield of Small-angle X-ray scattering. Her study focuses on the intersection of Crystallography and fields such as Molecule with connections in the field of Solvent.

She most often published in these fields:

  • Analytical chemistry (33.94%)
  • Ionic liquid (32.13%)
  • Scattering (27.15%)

What were the highlights of her more recent work (between 2013-2021)?

  • Ionic liquid (32.13%)
  • Aqueous solution (18.10%)
  • Analytical chemistry (33.94%)

In recent papers she was focusing on the following fields of study:

Keiko Nishikawa mainly focuses on Ionic liquid, Aqueous solution, Analytical chemistry, Ion and Phase. Her study in Ionic liquid is interdisciplinary in nature, drawing from both Phase transition, Inorganic chemistry, Crystallography, Amide and Alkyl. Her Alkyl study which covers Physical chemistry that intersects with Organic chemistry.

Keiko Nishikawa has included themes like Solvent, Thermodynamics, 2,2,2-Trifluoroethanol, Molecule and Hydrophobe in her Aqueous solution study. Her Thermodynamics study frequently draws connections to adjacent fields such as Scattering. Her Analytical chemistry study integrates concerns from other disciplines, such as Bond length, Overtone, Small-angle X-ray scattering and Absorption, X-ray absorption fine structure.

Between 2013 and 2021, her most popular works were:

  • K-Edge X-ray Absorption Fine Structure Analysis of Pt/Au Core–Shell Electrocatalyst: Evidence for Short Pt–Pt Distance (21 citations)
  • How much weaker are the effects of cations than those of anions? The effects of K+ and Cs+ on the molecular organization of liquid H2O. (19 citations)
  • Phase Behavior of a Piperidinium-Based Room-Temperature Ionic Liquid Exhibiting Scanning Rate Dependence (19 citations)

In her most recent research, the most cited papers focused on:

  • Quantum mechanics
  • Organic chemistry
  • Oxygen

Keiko Nishikawa spends much of her time researching Ionic liquid, Ion, Analytical chemistry, Nanoparticle and Sputter deposition. Her work deals with themes such as Phase transition, Inorganic chemistry, Melting point, Amide and Hydrogen bond, which intersect with Ionic liquid. Her biological study spans a wide range of topics, including Salt, Particle, Chemical reaction and Crystal structure.

The various areas that she examines in her Ion study include Computational chemistry, Alkyl and Physical chemistry. She interconnects Calorimetry and Raman spectroscopy in the investigation of issues within Physical chemistry. Her Analytical chemistry research is multidisciplinary, relying on both X-ray absorption fine structure, Small-angle X-ray scattering, Bond length and Aqueous solution.

This overview was generated by a machine learning system which analysed the scientist’s body of work. If you have any feedback, you can contact us here.

Best Publications

Structure of an ionic liquid, 1-n-butyl-3-methylimidazolium iodide, studied by wide-angle X-ray scattering and Raman spectroscopy

Hideki Katayanagi;Satoshi Hayashi;Hiro-o Hamaguchi;Keiko Nishikawa.
Chemical Physics Letters (2004)

259 Citations

An Ordered Water Molecular Assembly Structure in a Slit-Shaped Carbon Nanospace

T. Iiyama;K. Nishikawa;T. Otowa;K. Kaneko.
The Journal of Physical Chemistry (1995)

246 Citations

Mixing Schemes in Ionic Liquid−H2O Systems: A Thermodynamic Study

Hideki Katayanagi;Keiko Nishikawa;Hideki Shimozaki;Kumiko Miki.
Journal of Physical Chemistry B (2004)

221 Citations

Temperature dependence of the concentration fluctuation, the Kirkwood-Buff parameters, and the correlation length of tert-butyl alcohol and water mixtures studied by small-angle x-ray scattering

Keiko Nishikawa;Hisashi Hayashi;Takao Iijima.
The Journal of Physical Chemistry (1989)

189 Citations

Study of the structure of a water molecular assembly in a hydrophobic nanospace at low temperature with in situ X-ray diffraction

T. Iiyama;K. Nishikawa;T. Suzuki;K. Kaneko.
Chemical Physics Letters (1997)

179 Citations

Melting and freezing behaviors of prototype ionic liquids, 1-butyl-3-methylimidazolium bromide and its chloride, studied by using a nano-Watt differential scanning calorimeter.

Keiko Nishikawa;Shaolan Wang;Hideki Katayanagi;Satoshi Hayashi.
Journal of Physical Chemistry B (2007)

160 Citations

Small-angle x-ray scattering study of fluctuations in 1-propanol-water and 2-propanol-water systems

Hisashi. Hayashi;Keiko. Nishikawa;Takao. Iijima.
The Journal of Physical Chemistry (1990)

158 Citations

Fluctuations in the particle number and concentration and the Kirkwood-Buff parameters of tert-butyl alcohol and water mixtures studied by small-angle x-ray scattering

Keiko. Nishikawa;Yasuto. Kodera;Takao. Iijima.
The Journal of Physical Chemistry (1987)

154 Citations

Small-angle x-ray scattering study of fluctuations in ethanol and water mixtures

Keiko Nishikawa;Takao Iijima.
The Journal of Physical Chemistry (1993)

146 Citations

Corrections for Intensity Data in Energy-dispersive X-Ray Diffractometry of Liquids. Application to Carbon Tetrachloride

Keiko Nishikawa;Takao Iijima.
Bulletin of the Chemical Society of Japan (1984)

145 Citations

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