Sounak Roy
YOU?
Author Swipe
View article: La <sub> 2– <i>x</i> </sub> Sr <sub> <i>x</i> </sub> Ce <sub> 2– <i>y</i> </sub> Ni <sub> <i>y</i> </sub> O <sub>7</sub> Catalysts with Interstitial Nickel for Enhanced Dry Reforming of Methane
La <sub> 2– <i>x</i> </sub> Sr <sub> <i>x</i> </sub> Ce <sub> 2– <i>y</i> </sub> Ni <sub> <i>y</i> </sub> O <sub>7</sub> Catalysts with Interstitial Nickel for Enhanced Dry Reforming of Methane Open
This study explores the catalytic performance of solution combustion-synthesized doped defective fluorite catalysts, La2-xSrxCe2-yNiyO7, for the dry reforming of methane. A comprehensive structural analysis, supported by theoretical calcul…
View article: A dual promotional effect of doping tantalum (Ta) in atomically dispersed Ru/CeO2 catalyst toward CO2 methanation: Enhanced associative adsorption of CO2 and activation of H2
A dual promotional effect of doping tantalum (Ta) in atomically dispersed Ru/CeO2 catalyst toward CO2 methanation: Enhanced associative adsorption of CO2 and activation of H2 Open
Precisely controlling the product selectivity in CO2 hydrogenation through rational catalyst design presents a promising approach to mitigate environmental and energy-related challenges, though it remains a significant scientific hurdle. H…
View article: A Conjugated Porous Organic Polymer as a Metal‐Free Bifunctional Electrocatalyst for Enhanced Water Splitting
A Conjugated Porous Organic Polymer as a Metal‐Free Bifunctional Electrocatalyst for Enhanced Water Splitting Open
A conjugated porous organic polymer (SMCOP‐4) with imine linkage and triazine functional moiety was rationally designed and synthesized by an imine condensation reaction. The π‐conjugated network of SMCOP‐4 facilitates electron mobility, e…
View article: Engineering Lattice Strain in Co‐Doped NiMoO <sub>4</sub> for boosting Methanol Oxidation Reaction
Engineering Lattice Strain in Co‐Doped NiMoO <sub>4</sub> for boosting Methanol Oxidation Reaction Open
Nickel‐based molybdates have attracted considerable attention owing to their distinctive isomorphous structure. In this study, pristine NiMoO 4 and Co‐doped Ni 1‐x Co x MoO 4 were synthesized and investigated for their electrocatalytic act…
View article: Induced bifunctionality by mechanical blending of OER and ORR active 3D perovskite electrocatalysts for zinc-air batteries
Induced bifunctionality by mechanical blending of OER and ORR active 3D perovskite electrocatalysts for zinc-air batteries Open
Bifunctional electrocatalysts for oxygen electrocatalysis are typically developed by combining separate OER and ORR electrocatalysts to form composites, often requiring complex synthesis methods. In this study, we present a simplified appr…
View article: Oxygen vacancy assisted hydrogen evolution reaction over CeO<sub>2</sub>-based solid solutions
Oxygen vacancy assisted hydrogen evolution reaction over CeO<sub>2</sub>-based solid solutions Open
Producing sustainable hydrogen through water electrolysis is a promising approach to meet the growing demand for renewable energy storage.
View article: Promising metal-free green heterogeneous catalyst for quinoline synthesis using Brønsted acid functionalized g-C3N4
Promising metal-free green heterogeneous catalyst for quinoline synthesis using Brønsted acid functionalized g-C3N4 Open
Rationally designing distinct acidic and basic sites can greatly enhance performance and deepen our understanding of reaction mechanisms. In our current investigation, we studied the utilization of Brønsted acid sites within layered graphi…
View article: Exploring Dry Reforming of CH<sub>4</sub> to Syngas Using High‐Entropy Materials: A Novel Emerging Approach
Exploring Dry Reforming of CH<sub>4</sub> to Syngas Using High‐Entropy Materials: A Novel Emerging Approach Open
The high global warming potential of natural gas methane necessitates its conversion into valuable products, typically through syngas production. Among various technologies for methane valorization, dry reforming of methane (DRM), particul…
View article: Morphologically tuned CuO-ZnO-CeO<sub>2</sub> catalyst for CO<sub>2</sub> hydrogenation to methanol.
Morphologically tuned CuO-ZnO-CeO<sub>2</sub> catalyst for CO<sub>2</sub> hydrogenation to methanol. Open
Morphologically modified composite CuO-ZnO-CeO2 catalysts were synthesized using a single-step hydrothermal technique. The study highlights the influence of solvent on the structural and physico-chemical properties of the catalysts. Variou…
View article: The role of reducibility <i>vis-à-vis</i> oxygen vacancies of doped Co<sub>3</sub>O<sub>4</sub>/CeO<sub>2</sub> in the oxygen evolution reaction
The role of reducibility <i>vis-à-vis</i> oxygen vacancies of doped Co<sub>3</sub>O<sub>4</sub>/CeO<sub>2</sub> in the oxygen evolution reaction Open
CeO 2 aids Ce 4+ → Ce 3+ reduction, facilitating Co 2+ → Co 3+ oxidation in Co 3 O 4 during OER's positive potential. Intermediate Co 3+ lowers activation energy, boosting OER kinetics.
View article: Creation of a facile heterojunction in Co/ZnO–TiO<sub>2</sub> for the photocatalytic degradation of alizarin S
Creation of a facile heterojunction in Co/ZnO–TiO<sub>2</sub> for the photocatalytic degradation of alizarin S Open
Multicomponent heterojunction works as an efficient catalyst for dye degradation.
View article: Activating cobalt inverse spinel oxides <i>via</i> Fe substitution for enhanced water splitting reaction
Activating cobalt inverse spinel oxides <i>via</i> Fe substitution for enhanced water splitting reaction Open
Owing to their expeditious kinetics and remarkable catalytic prowess, spinel oxides have attracted significant attention as promising non-precious metal electrocatalysts for oxygen evolution reaction.
View article: High activity in the dry reforming of methane using a thermally switchable double perovskite and <i>in situ</i> generated molecular level nanocomposite
High activity in the dry reforming of methane using a thermally switchable double perovskite and <i>in situ</i> generated molecular level nanocomposite Open
La 2 MnNiO 6 (left) decomposes to constituent metal/metal oxides (right), molecular level nanocomposite, during DRM without altering their original positions in the double perovskite at ≥600 °C and hence both the phases show identical DRM …
View article: Post-synthetic exchange in a zirconium metal–organic framework for efficient photoreduction of CO<sub>2</sub> to formate
Post-synthetic exchange in a zirconium metal–organic framework for efficient photoreduction of CO<sub>2</sub> to formate Open
Post-synthetic modification of a water-stable Zr–NDI MOF to a Zr–Ti mixed-metal MOF results in an enhanced photocatalytic CO 2 conversion to formate.
View article: A Conjugated Porous Organic Polymer as the Bifunctional Electrocatalyst for Enhanced Water Splitting
A Conjugated Porous Organic Polymer as the Bifunctional Electrocatalyst for Enhanced Water Splitting Open
A conjugated porous organic polymer (SMCOP-4) with imine linkage was rationally designed and synthesized by an imine condensation reaction. The π-conjugated network structure of SMCOP-4 facilitates electron mobility, enhancing electrochemi…
View article: Efficient Synthesis of Quinolines from 2‐Aminoaryl Ketones with α‐Methylene Carbonyl Derivatives: Exploiting the Dual Acid Sites of Metal Organic Framework Catalyst
Efficient Synthesis of Quinolines from 2‐Aminoaryl Ketones with α‐Methylene Carbonyl Derivatives: Exploiting the Dual Acid Sites of Metal Organic Framework Catalyst Open
We report on the use of heterogeneous metal organic framework (MOF) catalysts for the Friedländer synthesis of 2‐aminoaryl ketone with α‐methylene carbonyl derivatives, a versatile and widely used method for the synthesis of quinoline deri…
View article: One-step production of adipic acid from cyclohexane over stable oxides (CeO2 & ZrO2) using O2: Enhanced oxidation activity in acidic medium
One-step production of adipic acid from cyclohexane over stable oxides (CeO2 & ZrO2) using O2: Enhanced oxidation activity in acidic medium Open
One-step production of adipic acid from cyclohexane using O2 is a long due process for replacing conventional two-step process involving nitric acid oxidation of KA-oil. This work presents one-step oxidation of cyclohexane into adipic acid…
View article: An Adaptive Gain Tuner Based Fore-ground Calibration Algorithm of a Pipeline ADC
An Adaptive Gain Tuner Based Fore-ground Calibration Algorithm of a Pipeline ADC Open
This brief proposes a low power mixed-signal foreground calibration algorithm of a pipeline ADC, using a digitally controlled re-configurable switched capacitor multiplying DAC (MDAC) gain controller. The proposed calibration technique for…
View article: Thermodynamic Analysis of Methanol Synthesis via CO2 Hydrogenation Reaction
Thermodynamic Analysis of Methanol Synthesis via CO2 Hydrogenation Reaction Open
The most inspiring opportunity to reduce greenhouse gas emissions is direct hydrogenation of CO2 into a commodity of products, which is also an appealing choice for generating renewable energy. CO2 hydrogenation can yield methanol which ha…
View article: Enhanced Photoinduced Electrocatalytic Oxidation of Methanol Using Pt Nanoparticle-Decorated TiO<sub>2</sub>–Polyaniline Ternary Nanofibers
Enhanced Photoinduced Electrocatalytic Oxidation of Methanol Using Pt Nanoparticle-Decorated TiO<sub>2</sub>–Polyaniline Ternary Nanofibers Open
Herein, perylene-3,4,9,10-tetracarboxylic acid-doped polyaniline (PTP) nanofibers with/without photoreactive anatase TiO2 (TiO2-PTP and PTP, respectively) have been successively synthesized and subsequently decorated by Pt nanoparticles (P…
View article: Unveiling the dual role of chemically synthesized copper doped zinc oxide for resistive switching applications
Unveiling the dual role of chemically synthesized copper doped zinc oxide for resistive switching applications Open
In this study, efforts were devoted to unveiling the dual role of single crystalline Cu (5%) doped ZnO (Cu:ZnO) synthesized by a simple and low-cost chemical process and to investigate its efficacy on resistive switching (RS) applications.…
View article: A novel microwave-assisted hydrothermal route for the synthesis of Zn<sub>x</sub>TPA/γ-Al<sub>2</sub>O<sub>3</sub>for conversion of carbohydrates into 5-hydroxymethylfurfural
A novel microwave-assisted hydrothermal route for the synthesis of Zn<sub>x</sub>TPA/γ-Al<sub>2</sub>O<sub>3</sub>for conversion of carbohydrates into 5-hydroxymethylfurfural Open
Energy-efficient and sustainable processes for the production of 5-hydroxymethylfurfural (HMF) from carbohydrates are in high demand.