Electrochemically synthesized Cd doped ZnO nanorods and integrated atomic Cd-S bridged Cd:ZnO/CdS heterostructure photoanode for enhanced visible light responsive water oxidation applications

Sadhasivam, S.; Sadhasivam, T.; Oh, Tae Hwan

doi:10.1016/j.jelechem.2023.117289

Cited by 12 publications

(5 citation statements)

References 63 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Among them, spinel-structured transition metal materials have attracted significant attention due to their competitive cost and excellent performance of HER or OER [11]. As a result, it is desirable to investigate the development of highly effective, low-cost, and environmentally friendly bifunctional electrocatalysts that allow the OER and HER to consume less energy [12,13]. Several ways have been devised to maximize water splitting activity, such as nanostructures, composites, noble metal doping, morphology, and the support of substrates with a high active surface area [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Facile Construction of Three-Dimensional Heterostructured CuCo2S4 Bifunctional Catalyst for Alkaline Water Electrolysis

Yang

et al. 2023

Catalysts

View full text Add to dashboard Cite

Developing an efficient multi-functional electrocatalyst with high efficiency and low cost to replace noble metals is significantly crucial for the industrial water electrolysis process and for producing sustainable green hydrogen (H2) fuel. Herein, ultrathin CuCo2S4 nanosheets assembled into highly open three-dimensional (3D) nanospheres of CuCo2S4 (Cu/Co = 33:67) were prepared by a facile one-pot solvothermal approach and utilized as a bifunctional electrocatalyst for efficient overall water splitting. The as-prepared CuCo2S4 is characterized structurally and morphologically; the BET surface area of the CuCo2S4 (Cu/Co = 33:67) catalyst was found to have a larger specific surface area (21.783 m2g−1) than that of other catalysts with a Cu/Co ratio of 67:33, 50:50, and 20:80. Benefiting from a highly open structure and ultrathin nanosheets with excellent exposure to catalytically active sites, CuCo2S4 (Cu/Co = 33:67) is identified as an efficient catalyst for the proton reduction and oxygen evolution reactions in 1 M KOH with an overpotential of 182 and 274 mV at 10 mA cm−2, respectively. As expected, a low cell voltage of 1.68 V delivers a current density of 10 mA cm−2. Stability and durability are also greatly enhanced under harsh alkaline conditions. Therefore, this work provides a simple strategy for the rational design of spinel-based transition metal sulfide catalysts for electrocatalysis.

show abstract

Section: Introductionmentioning

confidence: 99%

Facile Construction of Three-Dimensional Heterostructured CuCo2S4 Bifunctional Catalyst for Alkaline Water Electrolysis

Yang

et al. 2023

Catalysts

View full text Add to dashboard Cite

show abstract

“…Photocatalysis is a sustainable, cost‐effective, and environmentally friendly technology for producing H 2 . [ 6–9 ] Titanium dioxide (TiO 2 ) is a low‐toxicity, highly stable, and inexpensive UV‐responsive semiconductor that has been widely researched for the objective of achieving transcendent photocatalytic performance. Doping TiO 2 with metals or non‐metals reduces the TiO 2 energy gap and enhances the utilization of doped‐TiO 2 photocatalysts exposed to sunlight.…”

Section: Introductionmentioning

confidence: 99%

Optimizing Conductive Polymer Bulk Structure: Influence of Polymerization Temperature on Photocatalytic Performance for Sustainable Hydrogen Production

Lee,

Hsu,

Chen

et al. 2024

Energy Tech

View full text Add to dashboard Cite

The influence of the polymerization temperature upon the bulk‐structure‐doped conductive polymer polyaniline (emeraldine‐salt, PANI) on the semiconducting, optical, and electrical properties of the photocatalyst is investigated. When the B‐PANI polymerization temperature increases from 5 to 60 °C, the crystallinity and conductivity of Pt/N‐TiO2/B‐PANI (PNT/B‐PANI) decreases. To rectify the problems of recycling convenience and secondary pollution, this study combines a photocatalyst and a porous polystyrene film for sustainable hydrogen production. The photocatalytic performance of the polystyrene/PNT/B‐PANI‐5 (PS/PNT/B‐PANI‐5) photocatalyst film (27 047 μmol h−1 g−1) under simulated sunlight irradiation is enhanced by a factor of up to 1.6 compared to that of PS/PNT. Therefore, the PS/PNT/B‐PANI photocatalyst film is a visible‐light photocatalyst which is a promising candidate for enhancing photocatalytic recycling convenience.

show abstract

“…Due to its nontoxicity, high stability, relative affordability, lack of mass transfer resistance, ability to operate in ambient conditions, and most importantly, the potential to decompose recalcitrant organic pollutants into less harmful compounds in a short span, photocatalysis using ZnO/CdS heterostructures has been recognized as one of the most fascinating and potentially effective methods [46,47]. In this context, the use of ZnO/CdS heterostructures in photocatalysis has drawn considerable attention from a wide range of researchers and academicians since it provides an effective and environmentally friendly solution to wastewater management [48,49]. Recently, He et al synthesized binary CdS/ZnO heterostructures by a facile aqueous chemical process and found that the optimized CdS/ZnO heterostructures (CZ-3) exhibited a superior hydrogen production rate and dye degradation efficiency than the bare ZnO and CdS [37].…”

Section: Introductionmentioning

confidence: 99%

“…According to Lu et al, the hydrothermally grown ZnO/CdS heterostructures on FTO substrate have shown a 105 times higher photocatalytic hydrogen production rate (7669 µmol/g/h) than pure ZnO with a highest cyclic stability of 92.02% after 5 cycles for the optimized sample (ZS3) [47]. Sadhasivam et al achieved a highest photocurrent density of 3.6 mA/cm 2 for Cd-doped ZnO/CdS heterostructures, which is 10 times higher than pristine ZnO [49]. Guo et al reported the high rate of hydrogen generation and stability with the ZnO/CdS core/shell heterostructures [38].…”

Section: Introductionmentioning

confidence: 99%

Review of Recent Developments in the Fabrication of ZnO/CdS Heterostructure Photocatalysts for Degradation of Organic Pollutants and Hydrogen Production

Nadikatla¹,

Chintada²,

Gurugubelli³

et al. 2023

Molecules

View full text Add to dashboard Cite

Researchers have recently paid a lot of attention to semiconductor photocatalysts, especially ZnO-based heterostructures. Due to its availability, robustness, and biocompatibility, ZnO is a widely researched material in the fields of photocatalysis and energy storage. It is also environmentally beneficial. However, the wide bandgap energy and quick recombination of the photoinduced electron–hole pairs of ZnO limit its practical utility. To address these issues, many techniques have been used, such as the doping of metal ions and the creation of binary or ternary composites. Recent studies showed that ZnO/CdS heterostructures outperformed bare ZnO and CdS nanostructures in terms of photocatalytic performance when exposed to visible light. This review largely concentrated on the ZnO/CdS heterostructure production process and its possible applications including the degradation of organic pollutants and hydrogen evaluation. The importance of synthesis techniques such as bandgap engineering and controlled morphology was highlighted. In addition, the prospective uses of ZnO/CdS heterostructures in the realm of photocatalysis and the conceivable photodegradation mechanism were examined. Lastly, ZnO/CdS heterostructures’ challenges and prospects for the future have been discussed.

show abstract

Electrochemically synthesized Cd doped ZnO nanorods and integrated atomic Cd-S bridged Cd:ZnO/CdS heterostructure photoanode for enhanced visible light responsive water oxidation applications

Cited by 12 publications

References 63 publications

Facile Construction of Three-Dimensional Heterostructured CuCo2S4 Bifunctional Catalyst for Alkaline Water Electrolysis

Facile Construction of Three-Dimensional Heterostructured CuCo2S4 Bifunctional Catalyst for Alkaline Water Electrolysis

Optimizing Conductive Polymer Bulk Structure: Influence of Polymerization Temperature on Photocatalytic Performance for Sustainable Hydrogen Production

Review of Recent Developments in the Fabrication of ZnO/CdS Heterostructure Photocatalysts for Degradation of Organic Pollutants and Hydrogen Production

Contact Info

Product

Resources

About