Metal–organic frameworks (MOFs) and relative structures with uniform micro/mesoporous structures have shown important applications in various fields. This paper reports the synthesis of unprecedented mesoporous NixCo3−xO4 nanorods with tuned composition from the Co/Ni bimetallic MOF precursor. The Co/Ni‐MOFs are prepared by a one‐step facile microwave‐assisted solvothermal method rather than surface metallic cation exchange on the preformed one‐metal MOF template, therefore displaying very uniform distribution of two species and high structural integrity. The obtained mesoporous Ni0.3Co2.7O4 nanorod delivers a larger‐than‐theoretical reversible capacity of 1410 mAh g−1 after 200 repetitive cycles at a small current of 100 mA g−1 with an excellent high‐rate capability for lithium‐ion batteries. Large reversible capacities of 812 and 656 mAh g−1 can also be retained after 500 cycles at large currents of 2 and 5 A g−1, respectively. These outstanding electrochemical performances of the ternary metal oxide have been mainly attributed to its interconnected nanoparticle‐integrated mesoporous nanorod structure and the synergistic effect of two active metal oxide components.

We propose a novel approach to performing fine-grained 3D manipulation of image content via a convolutional neural network, which we call the Transformable Bottleneck Network (TBN). It applies given spatial transformations directly to a volumetric bottleneck within our encoderbottleneck-decoder architecture. Multi-view supervision encourages the network to learn to spatially disentangle the feature space within the bottleneck. The resulting spatial structure can be manipulated with arbitrary spatial transformations. We demonstrate the efficacy of TBNs for novel view synthesis, achieving state-of-the-art results on a challenging benchmark. We demonstrate that the bottlenecks produced by networks trained for this task contain meaningful spatial structure that allows us to intuitively perform a variety of image manipulations in 3D, well beyond the rigid transformations seen during training. These manipulations include non-uniform scaling, non-rigid warping, and combining content from different images. Finally, we extract explicit 3D structure from the bottleneck, performing impressive 3D reconstruction from a single input image. 1

This paper reports fast microwave hydrothermal synthesis of Ni-based metal−organic frameworks (Ni-MOFs) and their derived yolk−shell NiO structures by direct calcination in air. The molar ratio of the Ni ion to the benzene-1,3,5-tricarboxylic acid (H 3 BTC) ligand has important influence on the NiO morphologies and their electrochemical performances. The obtained yolk−shell NiO microsphere displays a large reversible capacity of 1060 mAh g −1 at a small current density of 0.2 A g −1 and a good high-rate capability when evaluated as an anode for rechargeable lithium-ion batteries. Moreover, the facilitated hydrogen release from ammonia borane (AB) at a lower temperature and the depressed release of undesired volatile byproducts are also observed in the Ni-MOFs supported AB.There is a increasing demand to make efficient use of energy and to find renewable and clean energy sources that can substitute for fossil fuels. 1,2 Energy storage, an important intermediate step toward versatile, clean, and efficient energy applications, has received worldwide concern both in academia and industry. 3−7 Among various candidates of energy storage systems, lithium-ion batteries (LIB) and fuel cells have received considerable attention owing to their high energy densities and environmental benignity. 8−16 LIB, one of the most important rechargeable batteries, have been widely used due to their high energy density and long cycle life. 10,17,18 Metal oxides such as NiO have long been extensively investigated as a potential electrode material for LIBs because of their 2−3 times higher theoretical capacities than commercial graphite electrodes. 19−42 However, their cycling performances and high-rate capabilities are still not satisfactory due to the large volume change associated with lithium insertion and extraction and poor electrical conductivity. 32−38,40−42 Hydrogen is one of the most promising candidates to replace nonrenewable fuel sources because it can react with oxygen to generate electricity with high energy density without byproducts. 43−45 Thus, hydrogen has been regarded as a suitable energy carrier for energy production from primary sources. Advanced materials are highly desired that can store a large amount of hydrogen at mild conditions (common temperature and relatively low pressure) along with a fast release kinetics. 46 Over the past decade, ammonia borane (NH 3 BH 3 , AB) has received much attention as a solid-state hydrogen storage medium because of its satisfactory stability, relatively low molecular mass, and remarkably high energy density. 47−50 However, its practical application is greatly limited by the poor kinetics of hydrogen generation below 85°C and the release of impurities that are detrimental to fuel cells.Metal−organic frameworks (MOFs) are porous materials synthesized by assembling metal ions with organic bridging ligands. 51,52 The metal ions in the MOFs can be thermally transformed into metal oxides, and the C and other elements are oxidized into gas molecules after calcining the MOFs in air at e...

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