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<正>Hou and coworkers in their Article on pages 136–144 reported H+/nanosheets and H+/nanoscrolls derived from K4Nb6O17with increased surface areas have a high adsorption capacity and a rapid visible-light response for the photodegradation of RhB.The materials can be easily prepared with low-cost and so,     

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正The cover image presents the application of inorganic solidstate electrolytes in large-scale energy storage systems. In article No. 1905013, Xu et al. summarize the progress of three common inorganic sodium ion solid electrolytes: Na-β-Al_2O_3,     

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正This special issue is dedicated to Dr. LI Yongfang, Professor at theInstituteofChemistry,ChineseAcademyofSciences(ICCAS)andatSoochowUniversity,ontheoccasionofhis70th birthday. It consists of 3 highlights and 11 papers, in the fields of electrochemistry, conducting polymers, organic solar     

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The essence of heavy oil processing is molecular composition and conversion. The benefit of a refinery is based on the molecules they buy and sell. Refining at molecular level has been a common concept both in academic and industrial communities. However, it is challenging for chemists to understand the composition of heavy petroleum and the detailed mechanisms of refining processes.     

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正The cover image presents that BN nanosheets induce the oxygen-rich {110} facets of Bi OI to expose. In article No. 2009063, Zhou et al. demonstrated a novel strategy to tune exposed oxygen-rich {110} facets of Bi OI by constructing 2D/2D BiOI/BN photocatalysts for efficient photocatalytic oxidation performance.     

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正The cover image shows the conversion of CO_2 to various valueadded chemicals through thermo-, electro-and photocatalysis. This special issue of CO_2 reduction features a collection of articles that describe advances in the field of CO_2 utilization relating to catalytic reduction of CO_2 using different catalysts and approaches.     

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正The cover image shows the application of solid-state nuclear magnetic resonance(SSNMR) in exploring surface/subsurface structure of solid nanocrystals. In article No. 1905021, Li et al. demonstrate a strategy of combining ~(17)O and ~1H NMR with electron paramagnetic resonance(EPR) for investigating unique local surface structure of a partially reduced TiO_2 material, and interpreting the reaction of water with this surface.     

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正The cover image presents the unique reactivity of thiolated gold nanoparticles with PPh3.On page 792,ZHU et al.demonstrate that a series of thiolated gold nanoparticles with different compositions,structures,sizes and protecting thiolates can be     

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正The cover image presents the inverse opal photonic crystals for photocatalytic hydrogen production.In article No.1803014,ZHANG et al.demonstrated that the CdS inverse opals with hierarchical porous structures could largely enhance the hydrogen production via multiple scattering and reflection of the induced mimic solar light.     

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正The cover image shows the process of the slow release of antibiotics from antibiotic-loaded micelles in an acidic environment.In article No.1910059,Chen et al.demonstrate a strategy to synthesize micelles with sustained cargo release characteristics and prove that these micelles can effectively improve the antibacterial effiiciency of the antibiotics.     

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正The cover image shows a X-type hole transport material (HTM)with an intermolecular charge transfer behavior could be used as an efficient hole transport layer of p-i-n perovskite solar cell.In article No. 2008050, Xu et al. proposed a new X-type HTM consistingofanelectron-deficientpara-diazinecoreand electron-donatingmethoxytriphenylamineperipheralunitfor enhancing the dipole moment and mobility of the HTM. The pi-nperovskitesolarcellsbasedonthisnewHTMshoweda power conversion efficiency of 17.52%.     

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正The cover image presents the self-assembled hematite/graphene composite for the thermal decomposition of an energetic material. In article No. 1905048, Zhang et al.     

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正The cover image depicts future vehicles powered by fuel cells with rationally designed non-precious-metal-based catalyst layers. In article No. 2010048, Hu et al. reviewed the recent efforts toward the development of non-precious-metal-N-C electrocatalysts for proton exchange membrane fuel cells, emphasizing on the improvement of their stability and activity at the device level.