典型文献
High-efficient solar-driven hydrogen production by full-spectrum synergistic photo-thermo-catalytic methanol steam reforming with in-situ photoreduced Pt-CuOx catalyst
文献摘要:
Synergy between the intrinsic photon and thermal effects from full-spectrum sunlight for H2 production is considered to be central to further improve solar-driven H2 production.To that end,the photo-thermo-catalyst that demonstrates both photoelectronic and photothermal conversion capabilities have drawn much attention recently.Here,we propose a novel synergistic full-spectrum photo-thermo-catalysis technique for high-efficient H2 production by solar-driven methanol steam reforming(MSR),along with the Pt-CuOx photo-thermo-catalyst featuring Pt-Cu/Cu2O/CuO heterojunctions by Pt-mediated in-situ photoreduction of CuO.The results show that the H2 production performance rises superlinearly with increasing light intensity.The optimal H2 production rate of 1.6 mol g-1 h-1 with the corresponding solar-to-hydrogen conversion efficiency of 7%and the CO selectivity of 5%is achieved under 15 x sun full-spectrum irradiance(1×sun-1 kW m-2)at 180℃,which is much more efficient than the previously-reported Cu-based thermo-catalysts for MSR normally operating at 250~350℃.These attrac-tive performances result from the optimized reaction kinetics in terms of intensified intermediate adsorption and accelerated carrier transfer by long-wave photothermal effect,and reduced activation barrier by short-wave photoelectronic effect,due to the broadened full-spectrum absorbability of cata-lyst.This work has brought us into the innovative technology of full-spectrum synergistic photo-thermo-catalysis,which is envisioned to expand the application fields of high-efficient solar fuel production.
文献关键词:
中图分类号:
作者姓名:
Donghui Li;Jie Sun;Rong Ma;Jinjia Wei
作者机构:
School of Chemical Engineering and Technology,Xi'an Jiaotong University,Xi'an 710049,Shaanxi,China;Adv Energy Sci&Technol Guangdong Lab,Foshan Xianhu Lab,Xianhu Hydrogen Valley,Foshan 528200,Guangdong,China
文献出处:
引用格式:
[1]Donghui Li;Jie Sun;Rong Ma;Jinjia Wei-.High-efficient solar-driven hydrogen production by full-spectrum synergistic photo-thermo-catalytic methanol steam reforming with in-situ photoreduced Pt-CuOx catalyst)[J].能源化学,2022(08):460-469
A类:
photoreduced,superlinearly,attrac
B类:
High,efficient,solar,driven,hydrogen,production,by,full,spectrum,synergistic,thermo,catalytic,methanol,steam,reforming,situ,Pt,CuOx,Synergy,between,intrinsic,photon,effects,from,sunlight,H2,considered,central,further,improve,To,that,end,demonstrates,both,photoelectronic,photothermal,conversion,capabilities,have,drawn,much,attention,recently,Here,propose,novel,catalysis,technique,high,MSR,along,featuring,Cu2O,heterojunctions,mediated,photoreduction,results,show,rises,increasing,intensity,optimal,corresponding,efficiency,selectivity,achieved,under,irradiance,kW,which,more,previously,reported,catalysts,normally,operating,These,performances,optimized,reaction,kinetics,terms,intensified,intermediate,adsorption,accelerated,carrier,transfer,wave,activation,barrier,short,due,broadened,absorbability,This,work,has,brought,into,innovative,technology,envisioned,expand,application,fields,fuel
AB值:
0.476737
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