Specific surface area (SSA) of electrode materials.

<p>Specific surface area (SSA) of electrode materials.</p

Influence of electrode mass ratio on specific capacitance of supercapacitors with different aqueous electrolytes.

<p>Influence of electrode mass ratio on specific capacitance of supercapacitors with different aqueous electrolytes.</p

Efficiency of electric double-layer capacitors operating in different electrolytes at the corresponding optimal electrode mass ratio.

<p>a) efficiency for each cycle of a 24-hour measurement and b) development of the efficiency during the first 10 cycles of the same measurements.</p

Radii <i>r</i> of hydrated ions [19].

<p>Radii <i>r</i> of hydrated ions [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0163146#pone.0163146.ref019" target="_blank">19</a>].</p

Structure of the composite surface taken with a field emission scanning electron microscope.

<p>The layered structure of the graphite flakes, the spherical shape of the activated carbon, and the cellulose nanofiber network are shown. a) magnification of 25000 ×; b) and c) magnification of 100000 ×.</p

Galvanostatic cycling profile of an electric double-layer capacitor.

<p>a) the first cycles and b) the last cycles of a typical 24-hour measurement.</p

Theoretical optimal electrode mass ratio emr_th, measured optimal electrode mass ratio emr_m, highest specific capacitance <i>C</i>_sp, and specific capacitance increase <i>C</i>_incr of different aqueous electrolytes.

<p>Theoretical optimal electrode mass ratio emr_th, measured optimal electrode mass ratio emr_m, highest specific capacitance <i>C</i>_sp, and specific capacitance increase <i>C</i>_incr of different aqueous electrolytes.</p

Electrophoretic mobility measurements and estimated zeta potential for water dispersion before exfoliation on the left, dispersion measured right after liquid exfoliation on the middle and, on the right dispersion measured after 30 days of liquid exfoliation.

<p>The number of particles exceeded 1 million on each measurement. The same measurement cell and sample were used for the PSD measurements.</p

FTIR spectrum for MoS₂.

<p>The data for measurements were offset on the vertical axis for clarity.</p

XRD measurements for the dispersion in water vacuum filtrated onto a cellulose membrane, the bulk powder deposited on a silicon wafer, the cellulose membrane filter and the modelling clay used to fix the sample onto the measurement container.

<p>The data for measurements were offset on the vertical axis for clarity. The Miller indexes for each reflexion are indicated for the bulk powder measurement [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0154522#pone.0154522.ref039" target="_blank">39</a>].</p