Copper catalysts prepared via microwave-heated polyol process for preferential oxidation of CO in H2-rich streams

Improved CO-PROX Performance of CuO/CeO2 Catalysts by Using Nanometric Ceria as Support

“…CuO/CeO 2 catalysts represent a cheaper and more selective alternative to noble metals and have been widely investigated in the last decades [3,5,[32][33][34], focusing on methods to further improve performance based on doping [6,8,10,18,22,[35][36][37][38][39][40][41][42] or unconventional preparation methods [4,11,12,18,[43][44][45][46][47].…”

Supported nanocatalysts: recent developments in microwave synthesis for application in heterogeneous catalysis

“…Chuang et al observed that the smaller (16 nm) CuNPs and cubic morphology in Cu/AC-700 W-60 s-12 prepared under optimized MW conditions is favorable for obtaining the highest oxidation of CO. 81 The same observation was made with Cu/CeO 2 -TD catalyst during CO oxidation (95.8 % conversion) due to better dispersion and smaller CuNPs (33 nm). 132 The catalytic efficiency of Cu/CeO 2 -TD was comparable to Cu/CeO 2 nanorod prepared by wet IM and hydrothermal method. hollow structure of CuNPs with exposed Cu (111) crystal improved the selectivity.…”

“…The above sections revealed that a variety of supported nanocatalysts has been prepared by MW assisted methods. The supported nano catlaysts included simple metal catalysts such as Cu, [81][82][83]105,132 Ni, 105,118,136 Co, 105,119,120 Fe, 84 Ru, 85,86,[95][96][97][98][99]141 Ag, 112,116 Au, 112,129,131,142 Pt, [87][88][89][90][91][92]106,111,121,142,145,146 Ti, 122 Zr, 123 Pd, 93,[106][107][108]127,128,130,133,134,…”

“…In this regard, anchoring or mobilization of nanocatalyst to inert or catalytically active support could help to improve the catalyst life time through inhibiting leaching, enhancing stability, less poisoning and maintaining the nano-size distribution. 81,87,88,[90][91][92]95,99,111,112,132,141,142,145,146,158,162,166,[171][172][173][175][176][177][178][179][180]182,183,186,190,198,199 MW assisted reduction in presence of reducing agents or under H 2 pressure, 98,[106][107][108][109]116,121,[127][128][129][130]133,134,161,…”