期刊
ACS CATALYSIS
卷 4, 期 2, 页码 497-504出版社
AMER CHEMICAL SOC
DOI: 10.1021/cs401068m
关键词
photocatalysis; graphene; biomass; alginate; water splitting
资金
- Spanish Ministry of Economy and Competitiviness [CTQ-2012-3532]
- Spanish Ministry of Economy and Competitiviness (Severo Ochoa)
- Generalitat Valenciana
- Spanish CSIC
- European Commission
- European Social Fund
- Regione Calabria
Using alginate, a natural polysaccharide from algae, simultaneously as a graphene precursor and a templating agent for ceria nanoparticles, we have prepared a series of materials consisting of highly crystalline ceria nanoparticles embedded on a few-layer graphene matrix. XPS analysis indicates that the predominant oxidation state of Ce in the as-synthesized CeOx/graphene material is +III (over 80 atom %). Varying the weight percentage of ceria/alginate and the pyrolysis temperature enabled the preparation of a ceria/graphene photocatalyst that exhibits about 3 times higher photocatalytic activity for water oxidation to oxygen than commercial ceria. Our results on the ceria/graphene composite as a photocatalyst for water oxidation expand and complement the well-known effect of graphene to increase the photocatalytic efficiency of titania/graphene composites.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据