2023,9 (1-2)
The cover picture shows a novel two-dimensional metal–organic framework, EuCDDB, using for sensing and proton conduction. Solvent immersion experiment indicates that EuCDDB possesses a highly selective and fast responsive turn-on fluorescence sensing on DMF molecule triggered by efficient ligand-to-metal energy transfer process. Besides, the existence of hydrogen bonding interaction in the voids gives a considerable proton conductivity of 3.7×10–6 S cm–1 for EuCDDB at 90 °C and 90% RH. More details are discussed in the article by Liao et al. on page 230003. The cover picture shows a novel two-dimensional metal–organic framework, EuCDDB, using for sensing and proton conduction. Solvent immersion experiment indicates that EuCDDB possesses a highly selective and fast responsive turn-on fluorescence sensing on DMF molecule triggered by efficient ligand-to-metal energy transfer process. Besides, the existence of hydrogen bonding interaction in the voids gives a considerable proton conductivity of 3.7×10–6 S cm–1 for EuCDDB at 90 °C and 90% RH. More details are discussed in the article by Liao et al. on page 230003.
2022,8 (3-4)
The cover picture shows novel fluorenyl- orphyrins serving as charge trapping elements. With steric hin-drance building blocks of fluorene units, 2Flu-TPP presents highly nonplanar 3-dimensional structure which could effectively inhibit molecular packing and reduce the formation of leakage current paths. High-performance organic field effect transistor memory based on solu-tion-pro- cessing 2Flu-TPP element is achieved. More details are discussed in the article by Xie et al. on page 220006. The cover picture shows novel fluorenyl- orphyrins serving as charge trapping elements. With steric hin-drance building blocks of fluorene units, 2Flu-TPP presents highly nonplanar 3-dimensional structure which could effectively inhibit molecular packing and reduce the formation of leakage current paths. High-performance organic field effect transistor memory based on solu-tion-pro- cessing 2Flu-TPP element is achieved. More details are discussed in the article by Xie et al. on page 220006.
2022,8 (1-2)
The cover picture shows the complex and coordination polymers prepared by feasible solvothermal strategy with the reaction of amphiphilic 4-(methylthio) benzoic acid and copper/silver salts, and these compounds were taken for luminescent investigation. More details are discussed in the article by Liao et al. on page 220004. The cover picture shows the complex and coordination polymers prepared by feasible solvothermal strategy with the reaction of amphiphilic 4-(methylthio) benzoic acid and copper/silver salts, and these compounds were taken for luminescent investigation. More details are discussed in the article by Liao et al. on page 220004.
2021,7 (4)
The cover picture shows a facile strategy for large-scale synthesizing Co/C catalyst via the pyrolysis of cobalt acetate and melamine under N2 and applied it as a trifunctional catalyst for oxygen reduction reaction, oxygen evolution reaction, and hydrogen evolution reaction process. More details are discussed in the article by Sun et al. on page 210013. The cover picture shows a facile strategy for large-scale synthesizing Co/C catalyst via the pyrolysis of cobalt acetate and melamine under N2 and applied it as a trifunctional catalyst for oxygen reduction reaction, oxygen evolution reaction, and hydrogen evolution reaction process. More details are discussed in the article by Sun et al. on page 210013.
2021,7 (3)
Thecoverpictureshows that the thermal processing of citric acid and urea
resulted in some relatively minor carbonization and also significant thermally
induced chemical reactions for the formation of molecular dyes and/or
chromophores, which were incorporated with crosslinking into the
“nano-carbon/organic hybrids”. Some of
the molecular dyes and/or chromophores were red/near-IR absorptive and
fluorescent, which prompted erroneous claims of the hybrid samples as
“red/near-IR carbon dots”. More details are discussed in the article by Sun et al. on page 210011. Thecoverpictureshows that the thermal processing of citric acid and urea
resulted in some relatively minor carbonization and also significant thermally
induced chemical reactions for the formation of molecular dyes and/or
chromophores, which were incorporated with crosslinking into the
“nano-carbon/organic hybrids”. Some of
the molecular dyes and/or chromophores were red/near-IR absorptive and
fluorescent, which prompted erroneous claims of the hybrid samples as
“red/near-IR carbon dots”. More details are discussed in the article by Sun et al. on page 210011.
2021,7 (2)
The cover picture shows factors critical for the production of organic NIR photodetectors capable of detecting NIR light beyond 1000 nm. At the heart of the problem is the challenge of producing conjugated materials that effectively combine sufficiently low bandgaps (Eg< 1.1 eV), appropriate frontier orbital energies, suitable solubility, and good film formation properties. Although a wealth of polymers and small molecules have been reported and investigated, there are currently only nine materials that provide devices capable of detection beyond 1200 nm. The history, current progress, and future challenges of producing organic photodetectors able to access the deeper portion of the NIR spectrum is reviewed in this report. More details are discussed in the article by Rasmussenet al.on page 200019. The cover picture shows factors critical for the production of organic NIR photodetectors capable of detecting NIR light beyond 1000 nm. At the heart of the problem is the challenge of producing conjugated materials that effectively combine sufficiently low bandgaps (Eg< 1.1 eV), appropriate frontier orbital energies, suitable solubility, and good film formation properties. Although a wealth of polymers and small molecules have been reported and investigated, there are currently only nine materials that provide devices capable of detection beyond 1200 nm. The history, current progress, and future challenges of producing organic photodetectors able to access the deeper portion of the NIR spectrum is reviewed in this report. More details are discussed in the article by Rasmussenet al.on page 200019.
2021,7 (1)
The cover picture shows a two step dehydrative condensation-cyclization reaction pathway for the formation of nickel(II) complexes of porphyrinic thiazolidinones from nickel(II) 2-formyl-5,10,15,20-tetraphenylporphyrin. The first step involvesLa(OTf)3-catalyzed synthesis of 2-iminoporphyrins, whichundergo nucleophilic attack by a thiol group of mercaptoacetic acid in the second step followed by an intramolecular cyclization and a removal of H2O moleculeto afford a new series of β-substituted porphyrin-thiazolidinone hybrids. More details are discussed in the article by Bhattet al. on page200020. The cover picture shows a two step dehydrative condensation-cyclization reaction pathway for the formation of nickel(II) complexes of porphyrinic thiazolidinones from nickel(II) 2-formyl-5,10,15,20-tetraphenylporphyrin. The first step involvesLa(OTf)3-catalyzed synthesis of 2-iminoporphyrins, whichundergo nucleophilic attack by a thiol group of mercaptoacetic acid in the second step followed by an intramolecular cyclization and a removal of H2O moleculeto afford a new series of β-substituted porphyrin-thiazolidinone hybrids. More details are discussed in the article by Bhattet al. on page200020.
2020,6 (4)
The cover picture shows component optimization for catalyst layers in proton exchange membrane fuel cells. As the key part of proton exchange membrane fuel cells, the optimization of catalyst layer has attracted abundant researches from various views. The daedal interaction between catalyst, supported materials, ionomer, solvent and reaction gas has been reviewed briefly in this article. More details are discussed in the article by Peng et al. on page 200016.
2020,6 (3)
The cover picture shows the application of ferroelectric materials in solar cells such as ferroelectric solar cells, ferroelectric-semiconductor solar cells, dye-sensitized solar cells, perovskite solar cells and organic thin film solar cells. They can form the measurable macroscopic electric field inside ferroelectric materials film that can be used as built-in electric field for photovoltaic devices to separate electron-hole pairs and facilitate their transport. Therefore, the light-to-electric conversion efficiency of these cells is effectively improved. More details are discussed in the article by Zhang et al. on page 190032.
2020,6 (2)
The cover picture shows the structure-property relationship of some isomeric pyridyl bisamides. Biphenyl coupled isomeric pyridyl bisamides 1—4 have been synthesized and their gelation propensities have been thoroughly investigated. In spite of having a pyridine center, capable of forming water linking network and hydrogen bonding amide functionality, all the compounds behave as non-gelator in organic and semi aqueous solvents. Spectroscopic studies confirm that the metal coordination as well as the hydrogen bonding involving the amide NHs of 1 plays a pivotal role in establishing the gel network in solution. Not only through gelation, compound 1 also selectively recognizes Ag+ ions fluorimetrically in a turn-on mode in solution state and correlates the gel phase observations. More details are discussed in the article by Ghosh on page 200004.
2020,6 (1)
This cover picture shows a new simple and environmantal friendly fabrication approach to prepare Cu6Sn5 nanoparticles, which is a kind of intermetallic compound (IMC) with active/inert Sn-Cu interfaces. The active layer reacts with Li+ and the inert layer inhibits the volume change effectively. Meanwhile, reduced oxide graphene (RGO)/Cu6Sn5 composites are also prepared by the similar method for the reason that the presence of RGO alleviats the aggregation of Cu6Sn5 nanoparticles. This unique structure of RGO/Cu6Sn5 nanocomposites exhibits promising cycling stability (461 mAh·g-1 after 18 cycles), high rate capability and prominent capacity retention, which can be extensively used in the field of lithium-ion battery anode.
2019,5 (4)
The cover picture shows luminescent single-molecule magnets with potential applications in high density data storage and magneto-luminescence devices. This perspective highlights research advances of luminescent single-molecule magnets including metal complexes, metal-organic frameworks, ionic liquids, and metallofullerenes. More details are discussed in the article by Wang on page 190013. The cover picture shows luminescent single-molecule magnets with potential applications in high density data storage and magneto-luminescence devices. This perspective highlights research advances of luminescent single-molecule magnets including metal complexes, metal-organic frameworks, ionic liquids, and metallofullerenes. More details are discussed in the article by Wang on page 190013.
2019,5 (3)
The cover picture shows the concept of bottom-up fabrication of highly patterned nanoparticle arrays on self-assembled monolayers via selective capture of the particles onto the blue-colored components. This review summarizes the most recent advances of bottom-up fabrication applications of self-assembled monolayers, including creation of nanopatterns, surface reactions and new characterization methods. More details are discussed in the article by Fang on page 190023. The cover picture shows the concept of bottom-up fabrication of highly patterned nanoparticle arrays on self-assembled monolayers via selective capture of the particles onto the blue-colored components. This review summarizes the most recent advances of bottom-up fabrication applications of self-assembled monolayers, including creation of nanopatterns, surface reactions and new characterization methods. More details are discussed in the article by Fang on page 190023.
2019,5 (2)
The cover picture shows the hierarchical porous N-doped carbon fabricated from the renewable biomass soft wood. The as-made porous N-doped carbon with large surface area can remove Cr(VI) in solution efficiently and rapidly. A part of Cr(VI) ions were reduced to Cr(III) due to the reduction effect of electro-donor groups. This hierarchical porous N-doped carbon is a promising candidate for the removal of other heavy metals from wastewater. More details are discussed in the article by Yan on page 180024. The cover picture shows the hierarchical porous N-doped carbon fabricated from the renewable biomass soft wood. The as-made porous N-doped carbon with large surface area can remove Cr(VI) in solution efficiently and rapidly. A part of Cr(VI) ions were reduced to Cr(III) due to the reduction effect of electro-donor groups. This hierarchical porous N-doped carbon is a promising candidate for the removal of other heavy metals from wastewater. More details are discussed in the article by Yan on page 180024.
2019,5 (1)
The cover picture shows nonfullerene acceptor molecules for bulk-heterojunction polymer solar cells. The summary and discussion are focused on the molecular architecture and device performance of three types of nonfullerene acceptor materials including perylene diimide-based acceptors, A-D-A and A-π-D-π-A conjugated acceptors, aiming to understand the structure-property relationship. More details are discussed in the article by Ren on page 180025.
2018,4 (4)
The cover picture shows the fullerene@MOF materials with unique properties and applica-tions. Fullerenes have many potential applica-tions in various fields such as biomedicine, organic photovoltaics, molecular device, et al. It is very meaningful to explore more functional fullerene materials due to their spherical struc-ture and attractive properties. Metal-organic frameworks (MOFs) have gained particular in-terest due to the porous character and their applications in gas storage and catalysis. Therefore, it is fascinating to encapsulate mo-lecular fullerenes into MOF pores and to con-struct new complex materials. In this review, we discuss the up-to-date study progress for the preparation and applications of fullerene@MOF materials. More details are discussed in the article by Meng on page 180019.
The cover picture shows the fullerene@MOF materials with unique properties and applica-tions. Fullerenes have many potential applica-tions in various fields such as biomedicine, organic photovoltaics, molecular device, et al. It is very meaningful to explore more functional fullerene materials due to their spherical struc-ture and attractive properties. Metal-organic frameworks (MOFs) have gained particular in-terest due to the porous character and their applications in gas storage and catalysis. Therefore, it is fascinating to encapsulate mo-lecular fullerenes into MOF pores and to con-struct new complex materials. In this review, we discuss the up-to-date study progress for the preparation and applications of fullerene@MOF materials. More details are discussed in the article by Meng on page 180019.
