The table is vertically too big for being rotated; a font size reduction is necessary anyway. I get a decent result with
\documentclass[12pt]{report}
\usepackage{graphicx,xcolor}
\usepackage{caption}
\usepackage[centertags]{amsmath}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{amsthm}
\usepackage[version = 3]{mhchem}
\usepackage{rotating}
\usepackage{tabularx}
\usepackage{mathptmx}
\usepackage{textcomp}
\usepackage{array}
\usepackage{ragged2e}
\begin{document}
\begin{table}
\caption{Kinetic parameters for oxygen reduction mechanism in MCFC cathode.}
\scriptsize
\newcolumntype{Y}{>{\RaggedRight\arraybackslash}X}
\begin{tabularx}{\textwidth}{@{}c|>{$}c<{$}|>{$}c<{$}|Y|Y|Y|Y|Y@{}}
\hline
\hline
\multicolumn{8}{c}{$i_o = i_o^o (O_2)^a (CO_2)^b$} \\
\multicolumn{8}{c}{$i_o$ = Bulk exchange current density, $mA/cm^2$} \\
\multicolumn{8}{c}{$i_o^o$ = Standard exchange current density, $mA/cm^2$} \\
\hline
$i_o$ mA/cm$^2$ & a & b & Method & Electrode & Dominant Mechanism & Electrolyte & Reference \\
\hline
& 0.85 & -0.45 & Potential-step, AC Imped. & Au(ref), Ni(cathode) & Superoxide & 62/38 Li-K & \\
10,27,39 & 0.1 & -0.15 & Potential-step, Coul. relax., and AC Imped. & Au smooth & Superoxide & 43/57 Li-K eutectic & \\
11,26.3 & 0.1 & -0.15 & SS potentiostatic, potential step & Au smooth & Superoxide & Li, Li-K eutectic & \\
0.023-0.065 & - & - & SS potentiostatic & Au smooth & & Li-Na-K eutectic & \\
10 & 0.15 & -0.15 & Potential-step & Au, smooth & Superoxide & & \\
- & 0.3 & 0 & SS, kinetic control assumed & NiO, porous & & & Tang (1980) \\
- & 0.6 & 0.6 & & NiO, porous & & & Tang (1980) \\
~1 & 0.5 & 0 & C & NiO, porous & & & \\
4-7 & - & - & Transient potentiostatic & Au & & & IGT Proj 9105 \\
0.78 & 0.2 & 0.2 & Modeling of SS data & NiO, porous & Peroxide & Na-K & \\
0.16-0.5 & 0.875 & -0.25 & Modeling of SS data & NiO, porous & & & \\
0.01-0.03 & - & - & Potential-sweep & Au & Peroxide & Na-K, Li & \\
& 0.375 & -1.25 & Modeling of SS data & NiO, porous & & & \\
& 0.4 & 0 & Modeling of SS data & SS porous & Superoxide & Li-Na-K, Li-K & This work \\
\hline
\end{tabularx}
\end{table}
\end{document}
There are several problems in the table, I fixed some; however the names of the chemical elements are still wrong and you should fix them with mchem
commands.
If you decide for a rotated table, you can use \footnotesize
:
\documentclass[12pt]{report}
\usepackage{graphicx,xcolor}
\usepackage{caption}
\usepackage[centertags]{amsmath}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{amsthm}
\usepackage[version = 3]{mhchem}
\usepackage{rotating}
\usepackage{tabularx}
\usepackage{mathptmx}
\usepackage{textcomp}
\usepackage{array}
\usepackage{ragged2e}
\begin{document}
\begin{sidewaystable}
\caption{Kinetic parameters for oxygen reduction mechanism in MCFC cathode.}
\footnotesize
\newcolumntype{Y}{>{\RaggedRight\arraybackslash}X}
\begin{tabularx}{\textwidth}{@{}c|>{$}c<{$}|>{$}c<{$}|Y|Y|Y|Y|Y@{}}
\hline
\hline
\multicolumn{8}{c}{$i_o = i_o^o (O_2)^a (CO_2)^b$} \\
\multicolumn{8}{c}{$i_o$ = Bulk exchange current density, $mA/cm^2$} \\
\multicolumn{8}{c}{$i_o^o$ = Standard exchange current density, $mA/cm^2$} \\
\hline
$i_o$ mA/cm$^2$ & a & b & Method & Electrode & Dominant Mechanism & Electrolyte & Reference \\
\hline
& 0.85 & -0.45 & Potential-step, AC Imped. & Au(ref), Ni(cathode) & Superoxide & 62/38 Li-K & \\
10,27,39 & 0.1 & -0.15 & Potential-step, Coul. relax., and AC Imped. & Au smooth & Superoxide & 43/57 Li-K eutectic & \\
11,26.3 & 0.1 & -0.15 & SS potentiostatic, potential step & Au smooth & Superoxide & Li, Li-K eutectic & \\
0.023-0.065 & - & - & SS potentiostatic & Au smooth & & Li-Na-K eutectic & \\
10 & 0.15 & -0.15 & Potential-step & Au, smooth & Superoxide & & \\
- & 0.3 & 0 & SS, kinetic control assumed & NiO, porous & & & Tang (1980) \\
- & 0.6 & 0.6 & & NiO, porous & & & Tang (1980) \\
~1 & 0.5 & 0 & C & NiO, porous & & & \\
4-7 & - & - & Transient potentiostatic & Au & & & IGT Proj 9105 \\
0.78 & 0.2 & 0.2 & Modeling of SS data & NiO, porous & Peroxide & Na-K & \\
0.16-0.5 & 0.875 & -0.25 & Modeling of SS data & NiO, porous & & & \\
0.01-0.03 & - & - & Potential-sweep & Au & Peroxide & Na-K, Li & \\
& 0.375 & -1.25 & Modeling of SS data & NiO, porous & & & \\
& 0.4 & 0 & Modeling of SS data & SS porous & Superoxide & Li-Na-K, Li-K & This work \\
\hline
\end{tabularx}
\end{sidewaystable}
\end{document}
One way is to shift up the skip prior to the mid-height \tabucline
with a \\[-1pt]
. See below for 2nd approach.
%Dokumentclass
\documentclass[landscape]{letter}
%Packages
\usepackage[landscape]{geometry}
\usepackage[utf8] {inputenc}
\usepackage {multirow}
\usepackage {tabu}
%Formatting
\pagestyle{empty} %Remove numbering
\begin{document}
\begin{tabu}{ |[1pt] l | l l | l | l |[1pt] }
\tabucline[1 pt]{1-5}
\multicolumn{2}{ |[1pt] l }{ } & \multicolumn{3}{ |[1pt] l |[1pt]}{ } \\ \hline
& & \multicolumn{1}{ |[1pt] l | }{ } & \multicolumn{2}{ l |[1pt] }{ } \\ \hline
y & & \multicolumn{1}{ |[1pt] l | }{ } & \multicolumn{2}{ l |[1pt] }{ } \\[-1pt] \tabucline[1 pt]{3-5}
\hline
x & & \multicolumn{1}{ |[1pt] l | }{ } & & \\ \hline
& & \multicolumn{1}{ |[1pt] l | }{ } & & \\ \hline
& & \multicolumn{1}{ |[1pt] l | }{ } & & \\ \hline
& & \multicolumn{1}{ |[1pt] l | }{ } & & \\ \tabucline[1 pt]{1-5}
\end{tabu}
\end{document}
Alternately, if you want the thin line to bisect the thick line, then the approach: \\[-1pt] \tabucline[1 pt]{3-5}\\[-12.5pt]\hline
works.
%Dokumentclass
\documentclass[landscape]{letter}
%Packages
\usepackage[landscape]{geometry}
\usepackage[utf8] {inputenc}
\usepackage {multirow}
\usepackage {tabu}
%Formatting
\pagestyle{empty} %Remove numbering
\begin{document}
\begin{tabu}{ |[1pt] l | l l | l | l |[1pt] }
\tabucline[1 pt]{1-5}
\multicolumn{2}{ |[1pt] l }{ } & \multicolumn{3}{ |[1pt] l |[1pt]}{ } \\ \hline
& & \multicolumn{1}{ |[1pt] l | }{ } & \multicolumn{2}{ l |[1pt] }{ } \\ \hline
y & & \multicolumn{1}{ |[1pt] l | }{ } & \multicolumn{2}{ l |[1pt] }{ } \\[-1pt] \tabucline[1 pt]{3-5}\\[-12.5pt]
\hline
x & & \multicolumn{1}{ |[1pt] l | }{ } & & \\ \hline
& & \multicolumn{1}{ |[1pt] l | }{ } & & \\ \hline
& & \multicolumn{1}{ |[1pt] l | }{ } & & \\ \hline
& & \multicolumn{1}{ |[1pt] l | }{ } & & \\ \tabucline[1 pt]{1-5}
\end{tabu}
\end{document}
Best Answer
You could load the
rotating
package and make use of itssidewaystable
environment to typeset both the caption and the tabular material in landscape mode.Oh, and I wouldn't the
\resizebox
method unless all other, more reasonable methods have already been exhausted.