Au-Plasmon-induced resonance energy transfer modulates the charge carrier energetics of ZnO nanosheets to trigger the stoichiometric conversion of methane into ethane and hydrogen.

Sn-based anode materials have become potential substitutes for commercial graphite anode due to their high specific capacity and good safety. In this paper, ultrafine Sn nanoparticles embedded in nitrogen and phosphorus codoped porous carbon nanorods (Sn@C) are obtained by carbonizing bacteria that adsorb the Sn electroplating sludge extracting solution. The as-prepared Sn@ C rod-shaped composite exhibits superior electrochemical Li-storage performances, such as a reversible capacity of approximate 560 mAh/g at 1 A/g and an ultralong cycle life exceeding 1500 cycles, with approximately no capacity decay. The ultrastable structure of the Sn@C was revealed using in situ transmission electron microscope at the nanoscale and indicated that the Sn@C composite could restrict the volume expansion of Sn nanoparticles during the lithiation/ delithiation cycles. This work provides a new insight into addressing the electroplating sludge and designing novel lithium ion battery anodes.

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Five Cd(II) coordination polymers with the in situ generated ligand 5-amino-tetrazolate (atz−) were prepared from the hydrothermal reactions of the corresponding Cd(II) salts, and characterized by elemental analysis, IR spectroscopy, thermogravimetric analysis (TGA) and single crystal X-ray diffraction. The results of X-ray crystallographic analysis revealed that compounds {[Cd5(atz)9]Cl} n ·2nH2O (1) and {[Cd5(atz)9](SO4)0.5} n ·2nH2O (3) are isostructural with the perfect Kagome layers bridged by [Cd2(μ4-atz)3] clusters to generate a three-dimensional (3D) rare lon (topological type symbol) topological network with a vertex symbol of 66. Its hexagonal channels are filled by Cl− or SO4 2− anions and water molecules. Compound [Cd5(atz)8(μ2-Cl)2] n ·3nH2O (2) contains three different kinds of bridging modes of the atz− anion and is an intricate 3D polymer. It possesses a 5,6-connected btv topology with a vertex symbol of (47·62·8)2(410·65), which is rarely observed but only predicted by O’Keeffe in theory in coordination polymers. Compound [Cd7.5(atz)9(μ3-SO4)2(μ3-OH)2] n ·4.5H2O (4) is a 3D coordination polymer with a 3,4-connected (83)4(86)3 topology, which is built from trinuclear [Cd3(μ3-SO4)(μ3-OH)] clusters and bridging mononuclear Cd centers. Compound [Cd5(atz)4(μ5-SO4)2(μ3-OH)2] n (5) is constructed by a 3D inorganic cationic [Cd5(μ5-SO4)2(μ3-OH)2] n 4+ network, a 6-connected pcu topology, templated by atz− anions. The anion-exchange experiments were performed successfully for 1 and 3. Moreover, the thermal stabilities and photoluminescent properties of these compounds were investigated. This work markedly indicates that the subtle changes in the synthesis conditions profoundly influence the structures and topologies of the products.

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