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The goal of my research is to identify sulfur resistant Ni catalysts for the reforming of biomass tars. We use density functional theory to identify sulfur resistant Ni bimetallic catalysts. The theoretical results are validated by studying syngas reforming over these bimetallic catalysts in a packed bed reactor system. We characterize the reduced and post reaction catalyst samples using to various techniques -TPR, SEM, EXAFS and XRD - to understand the surface structure and catalyst behavior.