地球上的石化能源存量是有限的，預計在不久後將被耗盡。為了減輕溫室效應造成的影響及能源危機衍生的問題，探索替代能源或可再生能源的研究近來受到了很大的注意。甲醇是一種常見的化學工程材料，具有價格低廉、用途廣泛及較易運輸的優點，因此，近年來有很多研究是探討利用甲醇轉換做為氫氣來源的可能性。
同時具有微孔洞和中孔洞特徵的雙孔徑分子篩 (BPMS)可在413 K下合成，其BET比表面積約為649 m2/g，將銅鋅觸媒含浸於雙孔徑分子篩中，可應用於甲醇蒸汽重組反應(MSR)、甲醇降解反應(MD)、水汽轉化反應(WGS)及甲醇部份氧化反應(MPO)。
在523-623 K，藉由雙孔徑分子篩含浸銅鋅金屬活性基可催化甲醇重組為氫氣，由XANES及EXAFS光譜，可發現一價銅在MSR反應中扮演重要的角色。而分子篩擔體孔洞結構的不同，也對MSR反應的途徑造成影響。MSR中主要的反應例如WGS與MD，可在雙孔徑分子篩的微孔洞與中孔洞中進行，因此，銅鋅觸媒含浸於雙孔徑分子篩中具有高反應性、低活化能及氫氣產率高的優點。
甲醇降解反應主要是在摻雜銅鋅活性金屬之中孔洞中進行；而在ZSM-5的微孔洞系統中，銅可能以小於5 Å的分子簇形式存在。另外，甲醇部份氧化反應可在523-623 K下進行反應，但在T >573 K，氫氣的產率上升不大。在溫度小於573 K進行之甲醇部份氧化反應，在熱力學和經濟的觀點來看皆佔優勢。

It is extremely vital to know that the storage of fossil fuel on earth is finite; that is, it will be used up in the near future. Therefore, exploratory research in alternative or renewable energy attracted a great attention to reduce greenhouse effect and energy crisis. Methanol is a common chemical engineering material with advantages of low cost, high availability, and easier transportation than H2.
Biporous molecular sieves (BPMS) with both micro- and meso- pores characteristics were synthesized at 413 K. The BET surface area of the BPMS is 649 m2/g. Copper-zinc oxides supported on BPMS were used to catalyze methanol steam reforming (MSR), methanol decomposition (MD), water-gas shift reaction (WGS), and methanol partial oxidation (MPO).
Methanol can be catalytically reformed to yield H2 at 523-623 K on copper-zinc oxides supported BPMS. By XANES and EXAFS spectroscopies, it is clear that Cu(I) plays the most important role in the catalytic MSR reactions. The pore structure of the molecular sieve supports is also associated with the reaction path of the catalytic MSR process. The main reaction such as water-gas shift and methanol decomposition in the catalytic MSR process can proceed in the meso- and micro-pores of the BPMS, that also accounts for the fact of high reactivity, low Ea, and high yields of H2 on the copper-zinc oxides/BPMS.
The MD reaction occurs mainly in the mesopores (BPMS and MCM-41) where the active site copper may be dispersed with ZnO. Copper in the confined channel system such as ZSM-5 may form clusters with a size of <5 Å. High yields of H2 from the catalytic MPO reaction have been found at T <573 K.

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