Metal–organic frameworks (MOFs) and graphene aerogels (GAs) are both considered as good candidates for high‐performance supercapacitors. In this work, a growth‐oriented Fe‐based MOF synergized with GA composite for supercapacitor is prepared. MIL‐88‐Fe is in situ grown at (002) lattice plane on the surface of graphene via a one‐step solvothermal method. Long periodic hexagonal structure and electrophilicity of MOF provide strong p–π interaction with graphene sheets. By utilizing the abundant interspace of GA, the existence of MOF could affect the electric double‐layer characteristics of composites. The MOF/GA composites have the advantages of high capacitive volume, fast charge/discharge rate, and reliable cycling stability. The specific capacitance is as high as 353 F g−1 at the scan rate of 20 A g−1, and the retention ratio is 74.4% after 10 000 cycles.

Among many thermo-photochromic materials, the color-changing behavior caused by temperature and light is usually lack of a full color response. And the study on visible light-stimuli chromic response is rarely reported. Here, we proposed a strategy to design a thermo-photochromic chameleon biomimetic material consisting of photonic poly(N-isopropylacrylamide-co-methacrylic acid) copolymer and plasmonic nanoparticles which has a vivid color change triggered by temperature and light like chameleons. We make use of the plasmonic nanoparticles like gold nanoparticles and silver nanoparticles to increase the sensitivity of the responsive behavior and control the lower critical solution temperature of the thermosensitive films by tuning the polymer chain conformation transition. Finally, it is possible that this film would have colorimetric responses to the entire VIS spectrum by the addition of different plasmonic nanoparticles to tune the plasmonic excitation wavelength. As a result, this method provides a potential use in new biosensors, military and many other aspects.

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The nonuniformity of microscopic electrochemical reaction of electrodes essentially results in the partial reaction discrepancy and subsequent partial overheating, which is the most critical safety problem of the battery system in electric vehicles. Herein, we report a class of DLPC@S/DLPC@Li full cell based on a distinctly constructed double-layer photonic crystal (DLPC) with a three-dimensional-ordered interconnected structure. This full cell not only ensures the uniformity of microscopic electrochemical reaction but also solves common problems such as low conductivity of sulfur, poor cycle life, and lithium dendrite growth. Impressively, the full cell exhibits superior electrochemical performance pertaining to high reversible capacity of 703.3 mAh g–1 even at an extremely high rate of 10 C and excellent cycle performance with 1200 cycles with about 0.0317% capacity loss per cycle at 0.5 C.

most porous carbon families only possess a single pore-type structure, [14][15][16][17][18] which makes it difficult to meet the demands due to the blockage of the simplex porous channels caused by the infiltration of RP and unsatisfied RP loading, leading to poor cycling properties. Micro-mesoporous nanostructure is beneficial to capture RP and increase the effective contact area. [19][20][21] But, the uncontrollable and disordered distribution of pores causes the heterogeneous size and agglomeration of RP, hindering the ion diffusion, and low pore volume cannot alleviate the drastic volume changes. Thus, constructing interconnected and ordered porous carbon host to exclusively confine RP and affording adequate space to clamp the volume expansion, is an effective strategy to respond to critical requirements for designing ideal carbon scaffolds as well as infiltration technology. Another hurdle that impedes the high-rate capacity of RP/C composites is that the porous carbon usually provides inferior electrical conductivity because of the sp 3hybridized CC bonding and amorphous state, leading to sluggish solid-state diffusion processes. [21] The most popular tactic is the engineering of the carbonaceous nanomaterials through iodine (I), boron(B), and nitrogen (N) doping, which could improve the reactivity and conductivity of carbon by creating heteroatoms defects. [22][23][24] Non-metallic heteroatom doping may increase the active sites in the carbon skeleton but may also create an intrinsic hurdle against charge transfer. In contrast, doping metal into the carbon supports can greatly improve its electrical conductivity as well as generate more active sites. Among them, Cu, which naturally owns the second-highest conductivity, [25] only 6% lower than the Ag, is a good choice for non-noble metal doping. Nevertheless, because metal tends to be located on the external surface of carbon in the form of aggregated particles, ions must pass through an intricate island-like structure byway to react with the guest RP during the discharge process, which aggravates the ionic and electrical resistance inevitably. Therefore, it is wise to reduce the particle size of Cu and nanoconfine it into the inside carbon layer of the porous matrix.Aiming to simultaneously utilize the excellent conductivity of Cu and the high porosity of porous carbon, an ideal RP immobilizer with dispersed Cu nanoclusters anchored to a trimodal porous carbon framework with periodic macroporesThe natural insulating property and notorious pulverization of volume variationinduced materials during cycling pares the electrochemical activity of red phosphorous (RP) for lithium/sodium-ion batteries (LIBs/SIBs). To work out these issues, a tailored trimodal porous carbon support comprising highly ordered macropores and micro-mesoporous walls embedded with copper (Cu) nanoclusters (Cu-OMC) is proposed to confine RP. The construction of highly conductive copper-carbon wall facilitates fast electrons and ions transportation, while the interconnected and ordered po...