Chen Li-Chung, Cheng Hongkui, Chiang Chih-Wei, Lin Shawn D
Department of Chemical Engineering, National Taiwan University of Science and Technology, 43, Keelung Road Sec. 4, Taipei, 106, Taiwan (ROC).
ChemSusChem. 2015 May 22;8(10):1787-93. doi: 10.1002/cssc.201403433. Epub 2015 Apr 15.
Hydrogen production through the use of renewable raw materials and renewable energy is crucial for advancing its applications as an energy carrier. In this study, we fabricated a solid oxide solution of Cu and Ni within a confined pore space, followed by a partial reduction, to produce a highly efficient catalyst for ethanol steam reforming (ESR). At 300 °C, EtOH is completely converted, a H2 yield of approximately 5 mol per mol is achieved, and CO2 is the main carbon-containing product. This demonstrates that H2 production from bioethanol is an efficient and sustainable approach. Such a highly efficient ESR catalyst is attributed to the ability of the metal-oxide interface to facilitate the transformation of CHx adspecies from acetaldehyde decomposition into methoxy-like adspecies, which are reformed readily to produce H2 and consequently reduce CH4 formation.
通过使用可再生原料和可再生能源来制氢对于推动其作为能源载体的应用至关重要。在本研究中，我们在受限的孔隙空间内制备了铜和镍的固体氧化物溶液，随后进行部分还原，以制备用于乙醇蒸汽重整（ESR）的高效催化剂。在300°C时，乙醇完全转化，每摩尔乙醇可实现约5摩尔的氢气产率，且二氧化碳是主要的含碳产物。这表明由生物乙醇制氢是一种高效且可持续的方法。这种高效的ESR催化剂归因于金属-氧化物界面促进CHx吸附物种从乙醛分解转化为类甲氧基吸附物种的能力，这些物种易于重整以产生氢气，从而减少甲烷的形成。
