Graphene quantum dots are known to exhibit tunable photoluminescence (PL) through manipulation of edge functionality under various synthesis conditions. Here, we report observation excitation dependent anomalous m–n type fingerprint PL transition in synthesized amino functionalized graphene (5–7 nm). The effect band-to-band π*–π and interstate band n–π induced transitions led effective multicolor emission changeable wavelength the system. A reasonable assertion that equi-coupling activated...

Abstract Green synthesis of urea under ambient conditions by electrochemical co‐reduction N 2 and CO gases using effective electrocatalyst essentially pushes the conventional two steps (N + H = NH 3 CO(NH ) industrial process at high temperature pressure, to brink. The single step green has hit a roadblock due lack efficient economically viable with multiple active sites for dual reduction gas molecules urea. Herein, copper phthalocyanine nanotubes (CuPc NTs) having (such as metal center,...

Electrocatalytic ammonia (NH3) synthesis through the nitrogen reduction reaction (NRR) under ambient conditions presents a promising alternative to famous century-old Haber–Bosch process. Designing and developing high-performance electrocatalyst is compelling necessity for electrochemical NRR. Specific transition metal based nanostructured catalysts are potential candidates this purpose owing their attributes such as higher actives sites, specificity well selectivity electron transfer, etc....

Ammonia forms the fundamental agricultural constituent and vital energy provenance of a clean hydrogen mediator. production leads to immense utilization drastic environmental repercussion. It is daunting task design synthesize competent catalysts for reduction nitrogenous species (nitrogen or nitrates, by nitrogen reaction (NRR) nitrate (NO3RR) process, respectively) into ammonia. Cobalt(II) phthalocyanine (CoPc) nanotubes were effectively wrapped 2D graphene sheets produce (1D–2D)...

Eight-electron nitrate reduction (NO3RR) offers a cost-effective and environmentally friendly route of ammonia production wastewater remediation. However, identification reinforcement the metal–ligand interaction responsible for catalytic activity in transition-metal phthalocyanine-based heterostructures still remain unclear due to their complexity. Herein, directed by computation, we present heterostructure approach couple 2D graphene sheets with 1D manganese (II) phthalocyanine produce...

The dual metal sites of Co and Mo in a CoPc–MoS 2 system mediate CO N activation result C–N coupling reaction to produce urea via an electrocatalytic pathway.

Nitrate, a water-pollutant, is converted to valuable product ammonia electrochemically using Fe(TCNQ) 2 /CF nanorod arrays with yield rate 11351.6 μg h –1 cm –2 and faradaic efficiency 85.2% under ambient conditions.

Abstract Using low and optimized magnetic field along with electric is a novel strategy to facilitate electrochemical nitrite reduction reaction (NO 2 RR). Herein, the assisted electrocatalytic ammonia synthesis employing spin‐thrusted β‐MnPc at 95 mT explored. The calculated rate of generation 16603.4 µg h −1 mg cat , which almost twice that nonpolarized manganese phthalocyanine (MnPc) catalyst. Additionally, Faradaic efficiency (FE) –0.9 V versus RHE found be 92.9%, significantly higher...

The orientation of β-CuPc favours the overlap central Cu with N parallel molecules, which is reason behind high electrical conductivity and selectivity in NH 3 production via nitrate reduction, impossible other polymorphs.

All-inorganic perovskite nanocrystals are emergent alternative of organolead halide perovskites. Cesium antimony (Cs3Sb2X9, X = Cl, Br, I) all-inorganic perovskites possessing analogous electronic configuration to the promising materials for optoelectronic applications. We report on a colloidal route synthesis uniform Cs3Sb2Cl9 nanowires with lengths up several microns. have synthesized aspect ratio controlled nanorods same ∼20 nm diameter by tuning precursors and ligands in reaction. The...

Highly-luminescent nanophosphors have a decisive role in solid-state lighting (SSL) as well field emission display (FED) applications due to their potential use fabrication of nanophosphor based FED and solid state devices. Herein, the red emitting highly-luminescent Eu3+–Li+ co-doped magnesium aluminate (MgAl2O4) were synthesized by customized sol–gel route with an average particle size 18 nm, which can be easily scaled up large quantity. The resulting exhibits hypersensitive emission,...

Solid-state lighting (SSL) and field emission based display (FED) devices collectively encompass a major fraction of contemporary research efforts thus development newer generation highly luminescent nanophosphors presently defines critical juncture for further this still somewhat-nascent field. However, the low efficiency red phosphors constitutes principal bottleneck commercialization such devices. Herein, we present light emitting Na+ codoped CaSnO3:Eu3+ nanophosphor with an average...

By adopting a facile, environmentally benign, solution phase method under ambient conditions, we have successfully synthesized all-inorganic cesium lead halide perovskite 1D rods.

DFT is applied to identify the active sites of NiPc for NRR and its catalytic origination. Accordingly, nanorods, synthesized by solvothermal method, exhibit NH₃ yield rate 85 μg h⁻¹ mg_cat⁻¹ FE 25% at −0.3 V <italic>vs.</italic> RHE.

Green urea synthesis is a novel way to convert N 2 /NO x and CO as compared the industrial method, which an expensive high energy demanding process. Mechanistic insights of are important increase efficiency

Ammonia is produced through the energy-intensive Haber-Bosch process, which undergoes catalytic oxidation for production of commercial nitric acid by senescent Ostwald process. The two industrial processes demand process sustainability. Hence, single-step electrocatalysis offers a promising approach toward more environmentally friendly solution. Herein, we report 10-electron pathway associated one-step electrochemical dinitrogen reaction (N2OR) to manganese phthalocyanine (MnPc) hollow...

Abstract The Ostwald process, which is producing HNO 3 for commercial use, involves the catalytic oxidation of NH and a series chemical reactions conducted under severe operating conditions. Due to their energy‐intensive nature, these activities play major role in greenhouse gas emissions global energy consumption. In response urgent requirements environmental sectors, there an increasingly critical need develop novel, highly efficient, environmentally sustainable methods. Herein, CoPc/C N 4...

Measurement of pH in living cells is a great and decisive factor for providing an early accurate diagnosis factor. Along with this, the multimodal transverse longitudinal relaxivity enhancement potentiality over single modality within platform magnetic resonance imaging (MRI) field very challenging issue diagnostic purposes biomedical application. Therefore, this work aims to design versatile by fabricating novel nanoprobe through holmium- manganese-ion doping carbon quantum dots...