S was successfully doped into carbon via calcination and Pd size was modulated by adjusting the S content. Sulfur species were considered to be anchor sites, contributing to the highly dispersion of Pd nanoparticles. In addition, Pd/CS₄ achieved 99.9% sel. With complete conversion in hydrogenation of o-chloronitrobenzene compared to Pd/AC (99.9% con., 61.6% sel.). Interestingly, catalysts with smaller metal size exhibited higher selectivity and lower activity, which was contrary to previous studies. It was suggested that electronic effects between S and Pd played an important role in this reaction, contributing to the excellent performance of the catalysts.

通过煅烧将S成功地掺入碳中，并通过调节S的含量来调节Pd的大小。硫物种被认为是锚点，有助于Pd纳米颗粒的高度分散。此外，Pd / CS ₄达到了99.9％的选择率。与Pd / AC相比，邻氯硝基苯的氢化反应完全转化（99.9％浓度，61.6％sel。）。有趣的是，具有较小金属尺寸的催化剂表现出较高的选择性和较低的活性，这与先前的研究相反。有人认为，S和Pd之间的电子效应在该反应中起重要作用，有助于催化剂的优异性能。