Photocatalytic hydrogen (H2) generation through water splitting has attracted substantial attention as a clean and renewable energy process that enormous potential in converting solar-to-chemical using suitable photocatalysts. The major bottleneck the development of semiconductor-based photocatalysts lies poor light absorption fast recombination photogenerated electron–hole pairs. Herein we report synthesis CuS/TiO2 heterostructured nanocomposites with varied TiO2 contents via simple...

Abstract The new covalent organic framework material TDFP‐1 was prepared through a solvothermal Schiff base condensation reaction of the monomers 1,3,5‐tris‐(4‐aminophenyl)triazine and 2,6‐diformyl‐4‐methylphenol. Owing to its high specific surface area 651 m 2 g −1 , extended π conjugation, inherent microporosity, exhibited an excellent energy‐storage capacity with maximum capacitance 354 F at scan rate mV s good cyclic stability 95 % retention initial after 1000 cycles 10 A . π‐conjugated...

Herein, we report the synthesis of metal (Pt and Au) alloy (PtAu) nanoparticles (NPs)-integrated graphitic carbon nitride (g-C3N4) hybrids using a facile solvothermal route for water-splitting application. The NPs with varying percentages Pt Au are found to be in size range 3–5 nm uniformly distributed on g-C3N4 sheets. act as cocatalyst enhance photocatalytic activity hydrogen (H2) generation through higher light absorption efficient charge separation. composition plays an important role...

Design and development of highly active durable oxygen reduction reaction (ORR) catalyst to replace Pt- Pt-based materials are present challenges in fuel cell research including direct methanol cells (DMFC). The crossover its subsequent oxidation at the cathode is another unwanted issue that reduces efficiency DMFC. Herein we report cobalt-doped ceria (Co-CeO2) as a promising electrocatalyst with competent ORR kinetics mainly through four-electron pathway, it surpasses Pt/C by great margin...

Ni-Doped CuS synthesized by a facile solvothermal method is demonstrated as an efficient oxygen evolution catalyst in alkaline medium.

The direct alcohol fuel cell has recently emerged as an important energy conversion device. In the present article, superior (ethanol, ethylene glycol, and glycerol) electrooxidation performance using trimetallic platinum–palladium–nickel (PtPdNi) alloy nanoparticles of diameters from 2–4 nm supported on a reduced graphene oxide (rGO) electrocatalyst is demonstrated. A simple single-step solvothermal technique adopted to fabricate alloy/rGO hybrid electrocatalysts by simultaneous reduction...

Oxygen evolution reaction (OER) is energetically challenging from the platform of making many photovoltaic devices such as metal-air batteries and water splitting systems because its poor kinetics even when precious metals are used. Herein, a Co(II)-porphyrin/pyrene-comprised conjugated microporous polymer Co-MPPy-1 has been developed which shows efficient OER in alkaline medium. The material was characterized by Fourier transform infrared, solid-state 13C cross-polarization magic angle...

Tailoring the properties of transition metal-based layered double hydroxides is inevitable for high-performance energy storage and efficient urea-electro-oxidation reaction (UOR) effectively harnessing from urea-rich wastewater.

The new porous polymer TPDA-1 has been synthesized via solvothermal Schiff base condensation reaction between two organic monomers, i.e., 2,4,6-trihydroxyisophthalaldehyde and 1,3,5-tris(4-aminophenyl)triazine. material showed a very high specific capacitance of 469.4 F g–1, at 2 mV s–1 scan rate, together with surface area 545 m2 g–1. It also exhibited excellent cyclic stability 95% retention its initial after 1000 cycles 5 A suggesting potential as performance supercapacitor. Extended...

Platinum is an excellent electrocatalyst. However, the disadvantages of Pt as electrocatalyst lie in its poor earth abundance, high cost, and stability due to surface poisoning. Thus it remains a challenge find suitable alternative electrocatalysts and/or reduce use Pt. Herein, we report solvothermal synthesis bimetallic (PtAu PtNi) trimetallic (PtAuNi) alloy nanoparticles (NPs) with controlled percentages individual metals. With optimized Ni content, (Pt66Au11Ni23) NPs show superior...

A unique strategy to obtain highly efficient electrocatalysts based on the spinel Ni0.5Cu0.5Co2O4 and mesoporous ZSM-5 (Zeolite Socony Mobil-5) is reported here for methanol oxidation in an alkaline medium. To develop catalyst, Ni2+–Cu2+ ion-exchanged are prepared. 30 wt % of decorated exhibits exceptionally higher catalytic activity with reasonably low onset potential than that Ni0.5Cu0.5Co2O4, NiCo2O4, CuCo2O4, ZSM-5. Electrochemical HCHO HCOOH also takes place over this catalyst at same...

Development of an efficient and inexpensive water oxidation electrocatalyst using the earth-abundant elements is still far to go. Herein, a novel strategy has been demonstrated for developing OER by doping Co(II) in three-dimensional Cd-based MOF that contains naked pyridine moieties form uncoordinated ligand. Electrochemically active CoCd-MOF was resulted through into inactive Cd-MOF. exhibited very high catalytic activity reaction. An overpotential 353 mV required produce anodic current...

The waste chemical heat pack was recycled into a mixed-phase Fe/Fe 3 O 4 /NC catalyst. This catalyst demonstrates excellent performance in both the OER and HER, attributed to synergistic effects of metallic iron, magnetite, nitrogen doping.

Effective and facile electrochemical oxidation of chemical fuels is pivotal for fuel cell applications. Herein, we report the electrocatalytic hydrazine on a citrate-capped Au-TiO2-modified glassy carbon electrode, which follows two different paths. These pathways are ascribed to occur Au activated TiO2 surface Au-TiO2 hybrid electrocatalyst. This activation was achieved through molecular capping by citrate, leads favorable with lower Tafel slope compared that clean respective materials, is, TiO2.

Development of cost-effective and efficient non noble metal electrocatalysts has immense importance towards sustainable energy technologies. Herein, a newly constructed porous Co(ii)-metal organic framework (MOF) been utilized for the synthesis cobalt nanoparticles embedded in N-doped carbon, (Co@NPC),