# Prospects and Technical Challenges in Hydrogen Production through Dry Reforming of Methane
## 2 Recent Advances on Catalysts for Syngas Production
### Transition Metals-Based Catalysts
#### 2.2.1 Nickel Catalysts
\begin{table}
\begin{tabular}{c c c c c c c} \hline \hline
**Catalyst** & **Preparation** & **Reaction Conditions** & **X\({}_{\text{CH}_{4}}\)(\%)** & **X\({}_{\text{CO}_{2}}\)(\%)** & **H\({}_{2}\)/CO Ratio** & **Coke Deposition** & **Ref.** \\ \hline \hline \multicolumn{8}{c}{Other transition metal-based catalysts} \\ \hline \multicolumn{8}{c}{Microwave-} \\ \hline \begin{tabular}{c} LaNi\({}_{34}\)CO\({}_{20,33}\)Mn\({}_{20}\)O\({}_{3}\) \\ perovskite catalyst \\ \end{tabular} & \begin{tabular}{c} [800 \({}^{\circ}\)C, CH\({}_{4}\)CO\({}_{2}\) = 1.105, \\ method \\ \end{tabular} & 94 & 93 & 1.1-1.2 & nr & [53] \\ \begin{tabular}{c} One-step sol-gel \\ method \\ \end{tabular} & \begin{tabular}{c} [600-800 \({}^{\circ}\)C, CH\({}_{4}\)CO\({}_{2}\) = 1.1, \\ WHSV = 6-24 L h\({}^{-1}\) g\({}^{-1}\) \\ \end{tabular} & 48-95 & 45-95 & 0.65–125 & 16–34 wt\% & [54] \\ \begin{tabular}{c} LaNiO\({}_{3}\) perovskite \\ \end{tabular} & \begin{tabular}{c} Sol-gel citrate \\ method \\ \end{tabular} & \begin{tabular}{c} [700-800 \({}^{\circ}\)C, CH\({}_{4}\)CO\({}_{2}\) = 1.1, \\ WHSV = 30 L h\({}^{-1}\) g\({}^{-1}\) \\ \end{tabular} & 88-93 & 89-93 & 0.8–1.1 & nr & [55] \\ \hline \multicolumn{8}{c}{B-ind intermetallic catalysts} \\ \hline \multicolumn{8}{c}{3-15 wt\% Ce promoted 1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-Pd-1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-Pd-1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-Pd-1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-Pd-1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-Pd-1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-Pd-1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-Pd-1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-Pd-1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-Pd-1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-Pd-1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-Pd-1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-Pd-1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-Pd-1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-Pd-1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-Pd-1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-Pd-1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-Pd-1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-Pd-1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-Pd-1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-Pd-Pd-1} \\ \end{tabular} & \multicolumn{8}{c}{\
\begin{tabular}{c} [60-83 \\ Flow rate = 30 mL min\({}^{-1}\) \\ \end{tabular} } & 60-83 & 39-98 & 0.4–1.1 & 2.4 wt\% & [56] \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-Pd-1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-Pd-1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-Pd-1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-Pd-1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-Pd-Pd-1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-Pd-Pd-1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-Pd-Pd-1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-Pd-Pd-1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-Pd-Pd-1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-Pd-Pd-1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-Pd-Pd-1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-Pd-Pd-1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-Pd-Pd-1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-Pd-Pd-Pd-1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-Pd-Pd-Pd-1} \\ \end{tabular} & \multicolumn{8}{c}{
\begin{tabular}{c} [60-700 \({}^{\circ}\)C, CH\({}_{4}\)CO\({}_{2}\) = 1.1, \\ \end{tabular} } & 87-94 & 86-91 & 0.99–1.0 & No coke & [57] \\ \multicolumn{8}{c}{800 \%-Pt 1+wt\%-Pd-Pd-1} \\ \multicolumn{8}{c}{800 \%-Pt 1+wt\%-Pd-Pd-Pd-1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-Pd-Pd-1} \\ \multicolumn{8}{c}{wt\%-Pt 1+wt\%-Pd-Pd-Pd-Pd-1} \\ \hline \hline \end{tabular}
\end{table} 
Table 1: \(Cont. the authors reported that CH\({}_{4}\) conversion increased when feed composition changed from CH\({}_{4}\):CO\({}_{2}\) = 1:1 to 1:3.