The remarkable morphological diversity and species abundance of teleost fishes offer a valuable resource for understanding vertebrate evolution.In phase I of the Fish10K project,genomes of 110 teleost species were seq...The remarkable morphological diversity and species abundance of teleost fishes offer a valuable resource for understanding vertebrate evolution.In phase I of the Fish10K project,genomes of 110 teleost species were sequenced and assembled,filling gaps in 3 previously unrepresented orders,and integrated with existing data to generate a 464 species wholegenome alignment spanning all teleost orders-the largest such resource beyond mammals and birds.展开更多
The purposeful and sensible fabrication of novel binary-shelled photocatalysts is highly attractive for photocatalytic hydrogen evolution.In this work,ZnIn_(2)S_(4)(ZIS)nanosheets were induced to grow on a framework o...The purposeful and sensible fabrication of novel binary-shelled photocatalysts is highly attractive for photocatalytic hydrogen evolution.In this work,ZnIn_(2)S_(4)(ZIS)nanosheets were induced to grow on a framework of Pd-porphyrin MOFs(Pd-PMOFs)to construct novel binary-shelled nanotubes(Pd-PMOFs@ZIS)via a multistep solvothermal process.On account of the abundant active sites,well-matched band gaps,strong visible light harvesting capability and outstanding charge migration efficiency,the assembled Pd-PMOFs@ZIS heterostructures exhibited prominently enhanced photocatalytic hydrogen generation activity.Concretely,the hydrogen evolution rate of the optimized sample was up to 8200.25μmol g^(−1) h^(−1) under visible light irradiation,which was approximately 24.07 and 13.73 times larger than those of individual ZIS and Pd-PMOFs,respectively.More importantly,density functional theory(DFT)calculations demonstrated that the fabrication of the heterojunctions established electron transport channels with Pd and In ions showing strong covalent bonding,and the electrons were converged and consumed at the interfaces between Pd-PMOFs and ZIS.Specifically,the transfer pathway of electrons is from Pd-PMOFs to ZIS.Our work provides a convenient and advanced prototype for synthesizing binary heterojunction photocatalysts with superior charge separation and transfer efficiency.展开更多
Transition metal phosphides(TMPs)have gradually developed as star catalysts in the field of electrocatalytic hydrogen evolution.In this work,a honeycomb porous bimetallic phosphide embedded in a N,P-dual-doped carbon ...Transition metal phosphides(TMPs)have gradually developed as star catalysts in the field of electrocatalytic hydrogen evolution.In this work,a honeycomb porous bimetallic phosphide embedded in a N,P-dual-doped carbon composite(abbr.:MoP/MoNiP@NPC-800)was prepared by one-step high-temperature pyrolysis of polyoxometalate(POM)[Ni(2,2’-bipy)_(3)][Mo_(6)O_(19)](abbr.:Ni-POM)assisted by NaH_(2)PO_(2)·H_(2)O.The catalyst MoP/MoNiP@NPC-800 exhibits surprising HER activity,by delivering low overpotentials of 50.4/72.6 mV at 10 mA cm^(-2),small Tafel slopes of 54/74 mV dec^(-1),and reliable~120 hours stability at 50 mA cm^(-2),respectively,in 1.0 M KOH and 0.5 M H_(2)SO_(4).The excellent HER catalytic activity is attributed to the synergistic effect of ample MoP and MoNiP dual active sites,which result from the N,P-dual-doped carbon layer protecting MoP and MoNiP from agglomeration and corrosion,and the 3D honeycomb porous structure increasing the number of exposed active sites and facilitating mass transfer.Theoretical calculations further prove that the most active sites for the HER are the P sites of the MoP and MoNiP dual-active centers.This study provides an effective strategy for the synthesis of bimetallic phosphides using POMs as sacrificial templates.展开更多
基金supported by The General Program(Key Program,Major Research Plan)of National Natural Science Foundation of China nos.32170439(to G.Y.F.),32122021(to K.W.),32293252,and 32170438(to C.C.F.)the Thousands Marine Species Genome Sequencing Project of Qingdao Free Trade Zone Management Committee(to G.Y.F.)+3 种基金Shandong Province Key Research and Development Plan no.2023CXPT057(to G.Y.F.)the Specially appointed Professor Program of Jiangsu Province,the Jiangsu Foreign Expert Bureau,and the Jiangsu Provincial Department of Technology grant JSSCTD202142(to I.S.)received technical support from the China National Gene Banksupported by the High-performance Computing Platform of YZBSTCACC.
文摘The remarkable morphological diversity and species abundance of teleost fishes offer a valuable resource for understanding vertebrate evolution.In phase I of the Fish10K project,genomes of 110 teleost species were sequenced and assembled,filling gaps in 3 previously unrepresented orders,and integrated with existing data to generate a 464 species wholegenome alignment spanning all teleost orders-the largest such resource beyond mammals and birds.
基金supported by the National Natural Science Foundation of China(21971050).
文摘The purposeful and sensible fabrication of novel binary-shelled photocatalysts is highly attractive for photocatalytic hydrogen evolution.In this work,ZnIn_(2)S_(4)(ZIS)nanosheets were induced to grow on a framework of Pd-porphyrin MOFs(Pd-PMOFs)to construct novel binary-shelled nanotubes(Pd-PMOFs@ZIS)via a multistep solvothermal process.On account of the abundant active sites,well-matched band gaps,strong visible light harvesting capability and outstanding charge migration efficiency,the assembled Pd-PMOFs@ZIS heterostructures exhibited prominently enhanced photocatalytic hydrogen generation activity.Concretely,the hydrogen evolution rate of the optimized sample was up to 8200.25μmol g^(−1) h^(−1) under visible light irradiation,which was approximately 24.07 and 13.73 times larger than those of individual ZIS and Pd-PMOFs,respectively.More importantly,density functional theory(DFT)calculations demonstrated that the fabrication of the heterojunctions established electron transport channels with Pd and In ions showing strong covalent bonding,and the electrons were converged and consumed at the interfaces between Pd-PMOFs and ZIS.Specifically,the transfer pathway of electrons is from Pd-PMOFs to ZIS.Our work provides a convenient and advanced prototype for synthesizing binary heterojunction photocatalysts with superior charge separation and transfer efficiency.
基金financially supported by the National Natural Science Foundation of China(No.21771095 and 22071135)the Natural Science Foundation of Shandong Province(ZR2023MB002,ZR2021MB114,ZR2021MB073 and ZR2017JL013)the Youth Innovation Team of Shandong Colleges and Universities(2019KJC027).
文摘Transition metal phosphides(TMPs)have gradually developed as star catalysts in the field of electrocatalytic hydrogen evolution.In this work,a honeycomb porous bimetallic phosphide embedded in a N,P-dual-doped carbon composite(abbr.:MoP/MoNiP@NPC-800)was prepared by one-step high-temperature pyrolysis of polyoxometalate(POM)[Ni(2,2’-bipy)_(3)][Mo_(6)O_(19)](abbr.:Ni-POM)assisted by NaH_(2)PO_(2)·H_(2)O.The catalyst MoP/MoNiP@NPC-800 exhibits surprising HER activity,by delivering low overpotentials of 50.4/72.6 mV at 10 mA cm^(-2),small Tafel slopes of 54/74 mV dec^(-1),and reliable~120 hours stability at 50 mA cm^(-2),respectively,in 1.0 M KOH and 0.5 M H_(2)SO_(4).The excellent HER catalytic activity is attributed to the synergistic effect of ample MoP and MoNiP dual active sites,which result from the N,P-dual-doped carbon layer protecting MoP and MoNiP from agglomeration and corrosion,and the 3D honeycomb porous structure increasing the number of exposed active sites and facilitating mass transfer.Theoretical calculations further prove that the most active sites for the HER are the P sites of the MoP and MoNiP dual-active centers.This study provides an effective strategy for the synthesis of bimetallic phosphides using POMs as sacrificial templates.
