Centering figures in a twocolumn page

Question

I've been trying to make a centered figure in my document. It is rather wide and I want it at the top. I am using memoir and twocolumn. I've tried the \usepackage{multicols} before, but it introduced a lot more errors than my current setup. It works pretty nicely, but figures can be hard to get right. I've tried

\begin{figure}[t]
    \centering
    \includegraphics[width=0.9\textwidth]{attachments/xrdceo2.png}
    \caption{...}
    \label{fig:XRDCeO2}
\end{figure}

Which works, but it is not centered by any means (few pixels) and it gets worse the lower text width gets. Another method I tried were to use \makebox which worked until something were written in the next column as it were transparent.

\begin{figure}[t]
    \centering
    \makebox[\textwidth][c]{\includegraphics[width=0.9\textwidth]{attachments/xrdceo2.png}}
    \caption{Orthorhombric unit cell of tin selenide, \ce{SnSe}, at \SI{100}{K}.}
    \label{fig:XRD_CeO2}
\end{figure}

I've also been giving minipage a try, but without luck. Thanks in advance.

MWE:

\documentclass[11pt,openany,british,a4paper,twoside,twocolumn]{memoir}
\usepackage{graphicx}
\usepackage{etoolbox}
\usepackage{fancyhdr}
\usepackage{lipsum}
\begin{document}
\lipsum
\begin{figure}[t]
    \centering
    \includegraphics[width=0.9\textwidth]{xrdceo2.png}
    \caption{...}
    \label{fig:XRDCeO2}
\end{figure}
\lipsum
\end{document}