In this paper, we report a new type of sulfur resistant hydrogenation catalyst, which was obtained by simply phosphating commercial Pd/C catalyst with triphenylphosphine under H₂ atmosphere at 600 °C. At this temperature, no palladium phosphides formed in XRD patterns due to the low synthetic temperature. Element analysis, N₂ adsorption-desorption and ICP characterizations show that only a small amount of P has been introduced into Pd, so the phosphorus doping does not change the pore size and surface area of pristine Pd/C. XPS characterization shows that P doping can effectively prevent the substrate adsorption on Pd surface, which relieves the sulfurization rate of Pd. Hence, the phosphorus doping catalyst can fully catalyze the 4-nitrothioanisole to 4-aminothioanisole and exhibits higher activity than Pd/C, which only has 70.9 % conversion. Moreover, the phosphorus doped Pd/C catalyst has better stability than Pd/C and its activity is almost unchanged during the recycle.

在本文中，我们报告了一种新型的耐硫氢化催化剂，该催化剂是通过在600°C的H ₂气氛下用三苯基膦简单地使商用Pd / C催化剂磷化而获得的。在此温度下，由于合成温度低，因此没有在XRD图中形成磷化钯。元素分析，N ₂吸附-解吸和ICP表征表明，Pd中仅引入了少量P，因此磷掺杂不会改变原始Pd / C的孔径和表面积。XPS表征表明，P掺杂可有效防止基底吸附在Pd表面，从而减轻Pd的硫化速率。因此，磷掺杂催化剂可以将4-硝基硫代苯甲醚完全催化为4-氨基硫代苯甲醚，并且比仅具有70.9％的转化率的Pd / C具有更高的活性。而且，掺磷的Pd / C催化剂比Pd / C具有更好的稳定性，并且其活性在再循环期间几乎不变。