Ultrafast Hole Preservation with Undercoordinated Tungsten for Efficient Solar-to-Chemical Conversion

Hu, Qiushi1; Liu, Shang1; Liu, Jingjing1; Lin, Meng1; Ye, Ruquan2,3; Chen, Xihan1

2024-06-01

10.1021/acsenergylett.4c01336

ACS ENERGY LETTERS   影响因子和分区

2380-8195

Solar-to-chemical conversion is crucial, as it can form chemicals that are easy to store. Hydrogen peroxide (H2O2) represents a favorable chemical for energy storage and disinfection. Solar driven H2O2 photocatalysis is a promising method, as it could greatly reduce costs and provide on-demand production. The big challenge lies in achieving optimum production rate with reasonable materials cost. Herein, by precise control of synthetic conditions, tungsten (W)-based metal-organic-framework (MOF) with up to 28.64% undercoordinated W4/5+ is prepared. The H2O2 photoproduction rate up to 330,000 mu mol g(-1) h(-1) L-1 is achieved, highest for non-noble metal-based catalysts. A multistage solar driven evaporation system further increases H2O2 concentration to 0.43 wt %, reaching application level for water treatment. Such an efficient production originates from ultrafast hole preservation, which enables a two-electron transfer reaction pathway for H2O2 production. Our work highlighted the potential of MOF-based photocatalyst for on-demand and large scale H2O2 production.

SCI ; EI

英语

第一 ; 通讯

National Natural Science Foundation of China["22373046","52376191"] ; National Natural Science Foundation of China[2023B0303000002] ; Guangdong Major Project of Basic and Applied Basic Research["JCYJ20220818100212027","ZDSYS20220527171403009"] ; Shenzhen Science and Technology Innovation Commission[2022A1515011333] ; Guangdong Basic and Applied Basic Research Fund[11309723]

Chemistry ; Electrochemistry ; Energy & Fuels ; Science & Technology - Other Topics ; Materials Science

Chemistry, Physical ; Electrochemistry ; Energy & Fuels ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:001242679500001

AMER CHEMICAL SOC

20242416251848

Indicators (chemical) ; Metal-Organic Frameworks ; Precious metals ; Tungsten ; Water treatment

Water Treatment Techniques:445.1 ; Gas Fuels:522 ; Metallurgy:531.1 ; Tungsten and Alloys:543.5 ; Precious Metals:547.1 ; Chemistry:801 ; Chemical Products Generally:804 ; Organic Compounds:804.1

Web of Science

1.Southern Univ Sci & Technol, SUSTech Energy Inst Carbon Neutral, Dept Mech & Energy Engn, Shenzhen Key Lab Intelligent Robot & Flexible Mfg, Shenzhen 518055, Guangdong, Peoples R China
2.City Univ Hong Kong, Dept Chem, State Key Lab Marine Pollut, Hong Kong 999077, Peoples R China
3.City Univ Hong Kong, Shenzhen Res Inst, Shenzhen 518057, Guangdong, Peoples R China

Hu, Qiushi,Liu, Shang,Liu, Jingjing,et al. Ultrafast Hole Preservation with Undercoordinated Tungsten for Efficient Solar-to-Chemical Conversion[J]. ACS ENERGY LETTERS,2024,9:3252-3260.

Hu, Qiushi,Liu, Shang,Liu, Jingjing,Lin, Meng,Ye, Ruquan,&Chen, Xihan.(2024).Ultrafast Hole Preservation with Undercoordinated Tungsten for Efficient Solar-to-Chemical Conversion.ACS ENERGY LETTERS,9,3252-3260.

Hu, Qiushi,et al."Ultrafast Hole Preservation with Undercoordinated Tungsten for Efficient Solar-to-Chemical Conversion".ACS ENERGY LETTERS 9(2024):3252-3260.