{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Ma K"],"funding":["National Natural Science Foundation of China"],"pagination":["2578-2584"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC6429598"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["10(9)"],"pubmed_abstract":["Catalytic reforming provides a practical technique for on-board hydrogen production in fuel cell applications. The high energy density, easy transportation and non-toxicity of biomass-derived dimethyl ether (bio-DME) offer potential to replace methanol for on-board steam reforming (SR). Presently, the reaction mechanism over conventional Cu-based SR catalysts remains elusive, limiting the rational design of highly efficient reforming systems. Herein, we build a catalytic system for bio-DME SR with dual-sites of Cu species, <i>i.e.</i>, Cu<sup>+</sup> and Cu<sup>0</sup> sites, and achieve a record-high H<sub>2</sub> production rate of 1145 mol kg<sub>cat</sub> <sup>-1</sup> h<sup>-1</sup>. <i>Via</i> regulating the ratios of the dual-sites of Cu, we clearly describe molecular understandings on SR. And we discover that the substantially boosted activity is induced by a new Cu<sup>+</sup>-determined reaction path substituting the conventional Cu<sup>0</sup>-determined path. Intrinsically, Cu<sub>2</sub>O can act as a physical spacer and hydroxyl consumer to suppress the aggregation of metallic Cu species in SR. Due to the unique structure of metallic Cu surrounded by Cu<sub>2</sub>O, the catalyst exhibits robust catalytic performance even after severe thermal treatment. These findings open a new avenue for designing efficient catalytic reforming systems with commercial potential."],"journal":["Chemical science"],"pubmed_title":["Achieving efficient and robust catalytic reforming on dual-sites of Cu species."],"pmcid":["PMC6429598"],"funding_grant_id":["21525626","21476159","21476160"],"pubmed_authors":["Jiang Z","Li X","Zhang J","Zhao ZJ","Cheng Q","Ding T","Tian Y","Zheng L","Tsubaki N","Abe T","Ma K","Gong J"],"additional_accession":[]},"is_claimable":false,"name":"Achieving efficient and robust catalytic reforming on dual-sites of Cu species.","description":"Catalytic reforming provides a practical technique for on-board hydrogen production in fuel cell applications. The high energy density, easy transportation and non-toxicity of biomass-derived dimethyl ether (bio-DME) offer potential to replace methanol for on-board steam reforming (SR). Presently, the reaction mechanism over conventional Cu-based SR catalysts remains elusive, limiting the rational design of highly efficient reforming systems. Herein, we build a catalytic system for bio-DME SR with dual-sites of Cu species, <i>i.e.</i>, Cu<sup>+</sup> and Cu<sup>0</sup> sites, and achieve a record-high H<sub>2</sub> production rate of 1145 mol kg<sub>cat</sub> <sup>-1</sup> h<sup>-1</sup>. <i>Via</i> regulating the ratios of the dual-sites of Cu, we clearly describe molecular understandings on SR. And we discover that the substantially boosted activity is induced by a new Cu<sup>+</sup>-determined reaction path substituting the conventional Cu<sup>0</sup>-determined path. Intrinsically, Cu<sub>2</sub>O can act as a physical spacer and hydroxyl consumer to suppress the aggregation of metallic Cu species in SR. Due to the unique structure of metallic Cu surrounded by Cu<sub>2</sub>O, the catalyst exhibits robust catalytic performance even after severe thermal treatment. These findings open a new avenue for designing efficient catalytic reforming systems with commercial potential.","dates":{"release":"2019-01-01T00:00:00Z","publication":"2019 Mar","modification":"2024-11-12T01:18:08.579Z","creation":"2019-06-06T21:01:49Z"},"accession":"S-EPMC6429598","cross_references":{"pubmed":["30996972"],"doi":["10.1039/c9sc00015a"]}}