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Microwave absorption performance and mechanisms of core–shell SiO2@C and hollow carbon nanospheres with different sizes.

Remolding the reactivity of metal active sites is critical to facilitate renewable electricity-powered water electrolysis. Doping heteroatoms, such as Se, into a metal crystal lattice has been considered an effective approach, yet usually suffers from loss of functional heteroatoms during harsh electrocatalytic conditions, thus leading to the gradual inactivation of the catalysts. Here, we report a new heteroatom-containing molecule-enhanced strategy toward sustainable oxygen evolution improvement. An organoselenium ligand, bis(3,5-dimethyl-1

C28H32O6, orthorhombic, Pnma (no. 62), a = 7.752(2) Å, b = 29.959(8) Å, c = 10.176(3) Å, V = 2363.5(11) Å3, Z = 4, R gt(F) = 0.1145, wR ref(F 2) = 0.1076, T = 296(2) K.

Controlling interpenetration and flexibility behaviors is intriguing and fundamental for porous coordination polymers. We report exceptional interpenetration behaviors involving controllable partia...

In recent years, molecular perovskite energetic materials have attracted more attention because of their simple synthesis processes, high thermal stabilities, excellent performances, and great significance as a design platform for energetic materials. To explore the possibility of the application of molecular perovskite energetic materials in heat-resistant explosives, four silver(I)-based molecular perovskite energetic compounds, (H

Molecular-based ferroic phase-transition materials have attracted increasing attention in the past decades due to their promising potential as sensors, switches, and memory. One of the long-term challenges in the development of molecular-based ferroic materials is determining how to promote the ferroic phase-transition temperature (

A new organic–inorganic layered perovskite, (C6H5(CH2)4NH3)2[MnCl4], undergoes three reversible structural phase transitions accompanying with magnetic–dielectric dual-bistabilities, and exhibits an intrinsic magnetodielectric effect during the spin-flop transition.

A new A2BX4-type layered perovskite, (4-fluorophenethylaminium)2[CuCl4], exhibits multi-channel properties including above-room-temperature ferroelasticity, reversible thermochromism, indirect semi-conductivity, and low-temperature ferromagnetism.

Combination of Sr(ii) and a funtional porphyrin-based ligand produce a metal-organic framework with highly efficient adsorption and photocatalytic degradation performances for organic dyes.

Three new three-dimensional metal-organic frameworks were synthesized based on a naphthalenediimide derivative ligand, all of which exhibit photochromic behaviour due to the presence of the naphthalenediimide core. Interestingly, two of them possess significant colour changes under light, excellent stability, and appropriate photochromic lifetimes, thus showing potential for application in inkless and erasable printing media.

The dicopper site in a metal–azolate framework result in an enhanced electroreduction selectivity and current density of CO for yielding acetate.

A direct strategy toward the synthesis of functionalized abietane-type diterpenes and related polycyclic molecules was developed through an Au-catalyzed 1,3-acyloxy migration/cyclization/electrophi...

Reducing CO2 into fuels via photochemical reactions relies on highly efficient photocatalytic systems. Herein, we report a new and efficient photocatalytic system for CO2 reduction. Driven by electrostatic attraction, an anionic metal-organic framework Cu-HHTP (HHTP = 2,3,6,7,10,11-hexahydroxytriphenylene) as host and a cationic photosensitizer [Ru(phen)3]2+ (phen = 1,10-phenanthroline) as guest were self-assembled into a photocatalytic system Ru@Cu-HHTP, which showed high activity for photocatalytic CO2 reduction under laboratory light source (CO production rate of 130(5) mmol g-1 h-1, selectivity of 92.9%) or natural sunlight (CO production rate of 69.5 mmol g-1 h-1, selectivity of 91.3%), representing the remarkable photocatalytic CO2 reduction performance. More importantly, the photosensitizer [Ru(phen)3]2+ in Ru@Cu-HHTP is only about 1/500 in quantity reported in the literature. Theoretical calculations and control experiments suggested that the assembly of the catalysts and photosensitizers via electrostatic attraction interactions can provide a better charge transfer efficiency, resulting in high performance for photocatalytic CO2 reduction.

Indoor detection of volatile organic compound (VOC, such as benzene and toluene vapors) concentration is necessary due to the serious toxicity hazards even at trace level. However, physisorbents usually exhibit weak interactions between sorbate and sorbent, thus exhibiting poor responsive signal especially in the presence of trace concentrations of VOCs. Herein, we report a new flexible metal-organic framework [Sr2(BINDI)(DMF)(H2O)]∙G (H4BINDI = N,N′-bis(5-isophthalic acid)naphthalenediimide, DMF = N,N-dimethylformamide, G = 0.6DMF) that exhibits interesting pore-opening behavior after immersing in H2O, hence allowing aromatic hydrocarbon molecules to diffuse into the pores. Interestingly, the pore-opening phase [Sr2(BINDI)(H2O)2] shows significant (∼116 fold) and extremely fast (2(BINDI)(H2O)2]⊃benzene reveal that the special "bilateral π-π stacking" interactions between electron-rich aromatic hydrocarbon and electron-deficient NDI cores facilitate electron transfer, and greatly enhance the intensity of fluorescence. Furthermore, this material can be fabricated into simple test strips, which enable visual detection of trace benzene vapor (3 ppm) under UV light.