Recently, Su et al. demonstrated the ability to use paired metal chlorides for the depolymerization of cellulose into monosaccharides and other products. In this work, CuCl2, CrCl2, CrCl3, PdCl2, and FeCl3 were initially tested as catalysts, but none were effective on their own. It was then discovered that by pairing CuCl2 and PdCl2, high yields of monosaccharides could be obtained. The total yield of products (including glucose, cellobiose, 5-hydroxymethylfurfural, and other) from this reaction system was found to be as high as 70 % with glucose yields up to roughly 45 %. This yield is much higher and occurs much faster than when using sulfuric acid under the same conditions [99].