Ternary heterojunction strategies appear to be an efficient approach improve the efficiency of organic solar cells (OSCs) through harvesting more sunlight. OSCs are fabricated by employing wide bandgap polymer donor (PM6), narrow nonfullerene acceptor (Y6), and PC71 BM as third component tune light absorption morphologies blend films. A record power conversion (PCE) 16.67% (certified 16.0%) on rigid substrate is achieved in optimized PM6:Y6:PC71 ratio 1:1:0.2. The introduction endows with...

Graphene/carbon nanotube (GR/CNT) composites were prepared by a modified exfoliation approach and used as capacitive deionization (CDI) electrodes. SEM TEM images demonstrate that the CNTs are successfully inserted into GR. Nitrogen sorption analysis electrochemical impedance spectroscopy show GR/CNT have larger specific surface area higher conductivity compared with GR, which is due to inhibiting aggregation increasing in vertical direction. Through cyclic voltammetry galvanostatic...

Graphene-coated hollow mesoporous carbon spheres are rationally designed and originally used as efficient electrode materials for capacitive deionization.

N, P, S co-doped hollow carbon polyhedra derived from MOF-based core–shell nanocomposites were developed for capacitive deionization.

In order to obtain excellent desalination behavior during the capacitive deionization (CDI) process, electrodes should provide efficient pathways for ion and electron transport. Here we open up a new opportunity prepare high performance based on three-dimensional macroporous graphene architectures (3DMGA). The 3DMGA were fabricated by simple template-directed method using polystyrene microspheres as sacrificial templates. resulting exhibited 3D interconnected structure with large specific...

We systematically summarized the current progress in graphene-based materials for capacitive deionization.

Capacitive deionization (CDI) with low-energy consumption and no secondary waste is emerging as a novel desalination technology. Graphene/mesoporous carbon (GE/MC) composites have been prepared via direct triblock-copolymer-templating method used CDI electrodes for the first time. The influences of GE content on textural properties electrochemical performance were studied. transmission electron microscopy nitrogen adsorption–desorption analysis indicate that mesoporous structures are well...

Exploring active and low-cost transition metal oxides (TMOs) based catalysts for volatile organic compounds (VOCs) abatement is vital air pollution control technologies. Since 18 oxygen atoms are required the complete mineralization of a toluene molecule, participation large amount key requirement catalytic oxidation toluene. Here, degradation was improved by weakening Co-O bond strength on surface cobalt oxide, so as to increase species, while maintaining high stability catalyst combustion....

A three-dimensional graphene-based hierarchically porous carbon (3DGHPC) has been prepared by a dual-template strategy and explored as the electrode for capacitive deionization (CDI). The texture analyses indicate that incorporation of into graphene (3DG) constructed hierarchical pore network with bimodal distribution. Compared to those 3DG (250.3 m2 g−1, 0.49 cm3 g−1), 3DGHPC exhibits higher specific surface area 384.4 g−1 an improved volume 0.73 g−1. electrosorption behavior investigated...

Currently, selective catalytic reduction (SCR) of NOx with NH3 in the presence SO2 by using vanadium-free catalysts is still an important issue for removal stationary sources. Developing high-performance a significant challenge. In this work, series Fe2O3-promoted halloysite-supported CeO2–WO3 were synthesized molten salt treatment followed impregnation method and demonstrated improved SO2. The obtained catalyst exhibits superior activity, high N2 selectivity over wide temperature range from...

Capacitive deionization (CDI) has received wide attention as an emerging water treatment technology because of its low energy consumption, cost, and high efficiency. However, the conventional carbon electrode materials for CDI have densities, which occupy large volumes are disadvantageous use in limited space (e.g., household or on offshore platforms). In order to miniaturize device, it is quite urgent develop volumetric adsorption capacity (VAC) materials. To overcome this issue, we...

The separation and recovery of heavy metal ions are demonstrated by 3D graphene-based asymmetric electrodes <italic>via</italic> capacitive deionization.

A novel ion-selective 3D graphene electrode was designed to overcome the co-ions expulsion effect and improve CDI performance.

Heavy metals widely exist in wastewater, which is a serious threat to human health or water environment. Highly efficient removal of heavy metal ions from wastewater major challenge treatment. In this work, capacitive via an electro-adsorption and electro-reaction coupling process was originally demonstrated. The efficiency the binary-component solutions containing nitrate (10 mg/L) NaCl (100 can reach 99%. Even be close 99% multi-component solution all seven nitrates mg/L for each) 100...

Nitrogen-doped porous carbon derived from a bimetallic metal–organic framework was demonstrated as highly efficient electrodes for flow-through deionization capacitors.

Non-fullerene all-small-molecule organic solar cells (NFSM-OSCs) have shown potential as OSCs, owing to their high purity, easy synthesis and good reproducibility. However, challenges in the modulation of phase separation morphology limited development. Herein, two novel small molecular donors, BTEC-1F BTEC-2F, derived from molecule DCAO3TBDTT, are synthesized. Using Y6 acceptor, devices based on non-fluorinated DCAO3TBDTT showed an open circuit voltage (Voc ) 0.804 V a power conversion...

Capacitive deionization (CDI) is a promising water purification technology. However, the current ion adsorption capacity of CDI electrode materials still an issue, which cannot meet rapid demand clean from saline water. Herein, trace-Fe-enhanced removal ions via presented. The electrodes up to 36.25 mg g–1 in 500 L–1 NaCl media at 1.2 V together with stable regeneration property. In situ Raman and ex XPS measurements unravel mechanism water, reinforced due introduction trace Fe boosting...

Endowing photodetectors with mechanically flexibility and actual functionality are current research issues in developing optoelectronic devices. However, rigid metal-based or metal-oxide-based electrodes remain a block to the realization of ultraflexible electronics. Thus, an all-organic photodetector (all-OPD) is designed by innovatively introducing symmetrical organic PH1000/PH1000 substitute widely applied indium-doped tin oxide (ITO)/Ag electrodes. Specifically, this all-OPD exhibits...

Abstract The flexible titanium dioxide (TiO 2 ) nanofibers (NFs) film are promising candidates for high‐performance wearable optoelectronic devices. However, the TiO ultraviolet photodetectors (UV PDs) generally suffer from low photosensitivity, which limits practical applications. Herein, a (TO) NFs photodetector integrated by ferroelectric BaTiO 3 (BTO) is developed via electrospinning technology with double sprinklers and in situ heat treatment. Compared TO PD poor on/off ratio ≈44,...

2D Ruddlesden-Popper perovskites (PVKs) have recently shown overwhelming potential in various optoelectronic devices on account of enhanced stability to their 3D counterparts. So far, regulating the phase distribution and orientation perovskite thin films remains challenging achieve efficient charge transport. This work elucidates balance struck between sufficient gradient sedimentation colloids less formation small-n phases, which results layered alignment compositions thus photoresponse....