Materials Today Sustainability最新文献_第6页

Recent advances in sustainable synthesis of zeolites

IF 7.1 3区材料科学

Materials Today Sustainability Pub Date : 2024-12-18 DOI: 10.1016/j.mtsust.2024.101065

Jiaqi Shi , Min Zhang , Longfeng Zhu , Qinming Wu , Xiangju Meng , Feng-Shou Xiao

引用次数: 0

A critical analysis of electric arc furnace (EAF) slag for sustainable geopolymer concrete production

IF 7.1 3区材料科学

Materials Today Sustainability Pub Date : 2024-12-18 DOI: 10.1016/j.mtsust.2024.101064

Kamal Kishore, M. Neaz Sheikh, Muhammad N.S. Hadi

{"title":"A critical analysis of electric arc furnace (EAF) slag for sustainable geopolymer concrete production","authors":"Kamal Kishore, M. Neaz Sheikh, Muhammad N.S. Hadi","doi":"10.1016/j.mtsust.2024.101064","DOIUrl":"10.1016/j.mtsust.2024.101064","url":null,"abstract":"<div><div>The iron and steelmaking industry is undergoing significant transformation to meet the rising demand for steel and its components. Generally, the production of steel is a continuous process carried out by using various furnaces, including blast furnaces (BF), basic oxygen furnaces (BOF), integrated furnaces (BF and BOF), and electric arc furnaces (EAF), with distinct operating conditions. Among these, the EAF has emerged as a sustainable solution for steel production due to its utilization of recycled steel scraps and alloys. However, the processing of steel using EAF generates waste industrial slag that requires appropriate reuse to prevent environmental contamination. The EAF slag contains heavy toxic metals such as zinc (Zn), manganese (Mn), nickel (Ni), cadmium (Cd), chromium (Cr), aluminium (Al), posing risks to water and soil if disposed of in landfills, while incineration is both energy-intensive and costly. Therefore, a sustainable and cost-effective solution is imperative. Geopolymer concrete, made from waste materials, offers numerous advantages in terms of strength and durability. Despite this, there is a lack of literature on the effects of EAF slag on geopolymer concrete. The EAF slag has the potential to be utilized as aggregates or as a pozzolanic material in geopolymer composites. Recycling EAF slag in geopolymer composites not only promotes environmental sustainability but also reduces greenhouse gas emissions. This comprehensive review explores the application of EAF slag in geopolymer composites, examining its synergistic effects on the mineralogical composition, morphological characteristics, environmental consequences, and management, as well as its impact on the hardened properties of geopolymer composites.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"29 ","pages":"Article 101064"},"PeriodicalIF":7.1,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143136369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hygroscopic sterilization synergistic effect of UiO-66-NH2@Potassium polyacrylate/carbon fiber negative ions electrode

IF 7.1 3区材料科学

Materials Today Sustainability Pub Date : 2024-12-13 DOI: 10.1016/j.mtsust.2024.101055

Tianyuan Hou , Shougang Chen , Qingfeng Bie , Weili Dong , Jianhua Liu , Bo Wen , Jiang Zhang , Yuqing Ye , Liting Dong , Xiao Sun , Xuechen Xu

{"title":"Hygroscopic sterilization synergistic effect of UiO-66-NH2@Potassium polyacrylate/carbon fiber negative ions electrode","authors":"Tianyuan Hou , Shougang Chen , Qingfeng Bie , Weili Dong , Jianhua Liu , Bo Wen , Jiang Zhang , Yuqing Ye , Liting Dong , Xiao Sun , Xuechen Xu","doi":"10.1016/j.mtsust.2024.101055","DOIUrl":"10.1016/j.mtsust.2024.101055","url":null,"abstract":"<div><div>Indoor air pollution is a major challenge faced by mankind. and tiny negative ions are one of the ideal answers to the problem of indoor air pollution. This method to purify indoor air has received increasing attention in recent years. In this work, a design method of potassium polyacrylate/carbon fiber (UN-PK-CF) composite unidirectional negative ions generating electrode which modified by UiO-66-NH<sub>2</sub> is presented. UiO-66-NH<sub>2</sub> particles are uniformly dispersed within the potassium polyacrylate (PK) hydrogel matrix, facilitating efficient moisture absorption. The natural pores formed during the PK hydrogel curing process effectively store the absorbed water and buffer the release of water in low humidity. One-dimensional carbon fibers, arranged as a skeleton within the hydrogel medium, facilitate rapid charge transfer and discharge from tip to generate negative ions and ROS. The UN-PK-CF electrode developed in this study exhibits outstanding moisture resistance and possesses the capability to harvest and utilize environmental water. Especially under the condition of low humidity, the sterilization rate of the electrode can reach nearly 99% under the coordination of adsorbed water.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"29 ","pages":"Article 101055"},"PeriodicalIF":7.1,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143096810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Revolutionary optimization: Synthetic fiber-reinforced geopolymer mortars with metazeolite and red mud for unmatched durability and sustainability

IF 7.1 3区材料科学

Materials Today Sustainability Pub Date : 2024-12-12 DOI: 10.1016/j.mtsust.2024.101062

Beyza Fahriye Aygun , Mucteba Uysal

{"title":"Revolutionary optimization: Synthetic fiber-reinforced geopolymer mortars with metazeolite and red mud for unmatched durability and sustainability","authors":"Beyza Fahriye Aygun , Mucteba Uysal","doi":"10.1016/j.mtsust.2024.101062","DOIUrl":"10.1016/j.mtsust.2024.101062","url":null,"abstract":"<div><div>This study provides a comprehensive life cycle assessment (LCA) of geopolymer mortar (GM), demonstrating notable environmental, economic, and durability advantages over traditional cement mortar (TCM). The objective is to assess GM's performance and sustainability in comparison to TCM. The production of GM, which utilizes materials like metazeolite (MZ) calcined at 900 °C<strong>,</strong> red mud (RM), and ground granulated blast slag (GGBS) activated by NaOH and Na₂SiO₃ in a 2:1 ratio, is found to be more efficient. Durability tests revealed that GM's compressive strength improved by 60%–133%, with GMs containing 30% RM and 0.5% basalt fiber (BF) maintaining 36.71 MPa and those reinforced with 0.5% polyethylene fiber (PEF) retaining 35.94 MPa after 270 days of exposure to hydrochloric acid (HCl). When exposed to sulfuric acid (H₂SO₄), the samples with polyethylene fibers showed the least deterioration, retaining 37.27 MPa after 28 days. LCA results indicate that although the raw material costs for GM are roughly double those of TCM, the lifecycle expenses of GM are competitive due to 50% lower production costs<strong>,</strong> 100% higher transportation costs, and 33% lower maintenance costs<strong>.</strong> Furthermore, GM generates about one-third of the CO₂ emissions of TCM, representing a 67% reduction. GM also reduces toxicity potential by 70%, emitting fewer phosphates and nitrates. Additionally, GM disposal results in decreased CO₂ and methane emissions and less heavy metal leaching compared to TCM. The optimized GM mix achieved a TOPSIS score of 0.85, significantly higher than TCM's 0.45, highlighting GM's superior sustainability and overall performance.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"29 ","pages":"Article 101062"},"PeriodicalIF":7.1,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143096450","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Constructing rational pore in nanocarbons by chemical and physical co-activation of polyaniline for high performance electrical double layer capacitors

IF 7.1 3区材料科学

Materials Today Sustainability Pub Date : 2024-12-10 DOI: 10.1016/j.mtsust.2024.101060

Zhenhu Li , Yu Zeng , Shuangyi Liu

{"title":"Constructing rational pore in nanocarbons by chemical and physical co-activation of polyaniline for high performance electrical double layer capacitors","authors":"Zhenhu Li , Yu Zeng , Shuangyi Liu","doi":"10.1016/j.mtsust.2024.101060","DOIUrl":"10.1016/j.mtsust.2024.101060","url":null,"abstract":"<div><div>Rationalizing pore structure of carbon electrode materials is an effective strategy to improve electrochemical performance of electrical double layer capacitors (EDLCs). Herein, chemical-physical co-activation method is developed to prepare polyaniline-derived N-doped porous nanocarbon with useable micropore and small mesopore for guaranteeing high electrostatically adsorptive area and fast ion transport, respectively. K<sub>2</sub>CO<sub>3</sub> firstly pre-activates to create appropriate pores, following by CO<sub>2</sub> deep activation for pore development. The resulting coral-like nitrogen-doped porous carbon (NPC<sub>KC</sub>) exhibits stable nitrogen-doping, largely efficient surface area, reasonable pore configuration (0.7–3 nm), which are highly desirable for capacitive behaviors. When conducted in aqueous electrolyte, NPC<sub>KC</sub> electrode displays a specific capacitance up to 236 F g<sup>−1</sup> at 0.5 A g<sup>−1</sup> and conspicuous cyclic stability of 96.9 % retention after 10,000 cycles. More meaningful, the organic NPC<sub>KC</sub>-based EDLC reaches a 132 F g<sup>−1</sup> specific capacitance at 0.2 A g<sup>−1</sup> and maintain 120 F g<sup>−1</sup> even at 10 A g<sup>−1</sup> (90.9 % capacitance retention), greatly surpassing that of commercial AC with similar specific surface area, which exclusively clarifies the significant influence of small mesopores on EDLC energy storage. Meanwhile, it possesses high density energy (40.7 W h kg<sup>−1</sup> at 149.6 W kg<sup>−1</sup>) and power density (23.5 W h kg<sup>−1</sup> at 6020 W kg<sup>−1</sup>), as well as excellent cyclic stability (89.4% of initial capacitance after 10,000 cycles), holding great practical potentials to application in commercial EDLCs.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"29 ","pages":"Article 101060"},"PeriodicalIF":7.1,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143096280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Elucidating the synergy of layer-by-layer TMDC-TMN deposition for superior electrochemical performance in supercapattery devices

IF 7.1 3区材料科学

Materials Today Sustainability Pub Date : 2024-12-09 DOI: 10.1016/j.mtsust.2024.101063

Muhammad Zahir Iqbal , Ayesha Zakir , Maira Javed , Nacer Badi , Rashid Ali , H.H. Hegazy , A.A. Alahmari

{"title":"Elucidating the synergy of layer-by-layer TMDC-TMN deposition for superior electrochemical performance in supercapattery devices","authors":"Muhammad Zahir Iqbal , Ayesha Zakir , Maira Javed , Nacer Badi , Rashid Ali , H.H. Hegazy , A.A. Alahmari","doi":"10.1016/j.mtsust.2024.101063","DOIUrl":"10.1016/j.mtsust.2024.101063","url":null,"abstract":"<div><div>Supercapatteric devices can combine the advantages of batteries and supercapacitors, addressing their individual limitations in power and energy density. This study focuses on enhancing the electrochemical performance of battery-grade electrodes through the strategic incorporation of transition metal dichalcogenides and transition metal nitrides, specifically tungsten disulfide. Utilizing the magnetron sputtering, we integrated conductive layers of chromium nitride and titanium nitride between substrate and WS<sub>2</sub>. Results of thorough electrochemical testing revealed that the initial specific capacity (Q<sub>s</sub>) of WS<sub>2</sub> was 600 C/g. However, by incorporating interfacial layers of CrN and TiN, the Q<sub>s</sub> was significantly improved 830 C/g and 1230 C/g, demonstrating the substantial impact of interface engineering on overall performance of WS<sub>2</sub>. The fabricated supercapatteric devices, demonstrated exceptional performance, with WS<sub>2</sub>/CrN//AC achieving Q<sub>s</sub> of 950 C/g and WS<sub>2</sub>/TiN//AC reaching a Q<sub>s</sub> of 1100 C/g. Moreover, WS<sub>2</sub>/CrN//AC and WS<sub>2</sub>/TiN//AC attained power densities of 6800 W/kg (with 99.8 % capacity retention) and 7108 W/kg (with 99.9 % capacity retention), respectively, and energy densities of 98 Wh/kg and 135 Wh/kg, highlighting the superior performance and stability of WS<sub>2</sub>/TiN//AC. Additionally, for examining the diffusive and capacitive behaviors of devices, two different semi-empirical models were further used and compared. This work emphasizes the potential of interface engineering in enhancing the performance of hybrid energy storage (HES) systems.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"29 ","pages":"Article 101063"},"PeriodicalIF":7.1,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143135584","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Phytofabrication of silver nanoparticles using Ehretia rigida leaf aqueous extract, their characterization, antioxidant and antimicrobial activities

IF 7.1 3区材料科学

Materials Today Sustainability Pub Date : 2024-12-09 DOI: 10.1016/j.mtsust.2024.101059

Samson O. Oselusi , Nicole R.S. Sibuyi , Mervin Meyer , Samantha Meyer , Abram M. Madiehe

{"title":"Phytofabrication of silver nanoparticles using Ehretia rigida leaf aqueous extract, their characterization, antioxidant and antimicrobial activities","authors":"Samson O. Oselusi , Nicole R.S. Sibuyi , Mervin Meyer , Samantha Meyer , Abram M. Madiehe","doi":"10.1016/j.mtsust.2024.101059","DOIUrl":"10.1016/j.mtsust.2024.101059","url":null,"abstract":"<div><div>The green synthesis of nanoparticles (NPs) offers a sustainable, rapid, and cost-effective alternative to traditional chemical and physical methods, with diverse applications across various fields. This study reports the synthesis of silver nanoparticles (AgNPs) using <em>Ehretia rigida</em> (Er) leaf aqueous extract and evaluates their biological activities. The formation of the NPs was confirmed by the change in colour from clear to dark brown. The synthesis parameters, such as pH, temperature, Er extract and silver nitrate (AgNO<sub>3</sub>) concentrations, reaction ratio, and incubation time, were optimized for high yields, controlled size, and stability of the NPs. The optimized Er-AgNPs were characterized using ultraviolet–visible (UV–vis) spectroscopy, dynamic light scattering (DLS), Fourier transform infrared (FTIR) spectroscopy, and high-resolution transmission electron microscopy (HR–TEM). The Er-AgNPs sample presented a characteristic absorbance peak at 408 nm, a hydrodynamic size of 74.02 ± 0.19 nm, a polydispersity index (PDI) of 0.39 ± 0.05, and a zeta potential of −25.4 ± 6.26 mV. FTIR analysis revealed the nature of the biomolecules responsible for the reduction and stabilization of the NPs. HR–TEM revealed that the Er-AgNPs were spherical, with core sizes ranging from 6 to 18 nm. The Er leaf aqueous extract and Er-AgNPs possessed antioxidant activities, with the Er leaf extract having higher activity than Er-AgNPs. The Er leaf extract did not exhibit any antimicrobial activity, whereas the Er-AgNPs demonstrated broad-spectrum antimicrobial activities against all the tested pathogens. This study provides a sustainable, easy and cost-effective method to produce AgNPs for biomedical applications.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"29 ","pages":"Article 101059"},"PeriodicalIF":7.1,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143135586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preserving food quality: Electrochemical detection of synthetic food antioxidant, propyl gallate in processed foods using ternary component layered double hydroxide/graphene aerogel synergy

IF 7.1 3区材料科学

Materials Today Sustainability Pub Date : 2024-12-09 DOI: 10.1016/j.mtsust.2024.101061

Megha Maria Stanley , Balasubramanian Sriram , Sea-Fue Wang , Abhikha Sherlin V , Sakthivel Kogularasu , Mary George

{"title":"Preserving food quality: Electrochemical detection of synthetic food antioxidant, propyl gallate in processed foods using ternary component layered double hydroxide/graphene aerogel synergy","authors":"Megha Maria Stanley , Balasubramanian Sriram , Sea-Fue Wang , Abhikha Sherlin V , Sakthivel Kogularasu , Mary George","doi":"10.1016/j.mtsust.2024.101061","DOIUrl":"10.1016/j.mtsust.2024.101061","url":null,"abstract":"<div><div>Fueled by the mounting demand from convenience-oriented consumers, the contemporary food industry increasingly relies on specialty chemicals to extend the shelf-life of processed food. Antioxidants such as propyl gallate (PG) are added to food products to avert lipid oxidation. Existing methods for monitoring PG often lack the required sensitivity and accuracy for real-time applications. Our work demonstrates enhanced sensitivity and selectivity through the synergistic combination of transition metal-based ternary layered double hydroxide (LDH) and graphene aerogel (GA) coated on a disposable screen-printed carbon electrode (SPCE). Introducing multi-metal-based LDH improves the electrochemical stability compared to virgin LDH structures. Using NiFeCu-LDH anchored to porous GA leading to high specific surface area and enhanced electron transfer, we explore the electrochemical conversion of PG at the modified SPCE using various electrochemical techniques. Differential pulse voltammetry showed a wide linear range from 0.02 to 279.1 μM and a limit of detection of 0.004 μM. Importantly, our work chronicles new insights into using Deep Eutectic Solvent (DES) systems for the green synthesis of LDHs. The developed electrochemical sensor was successfully used to assay PG in real food matrices, achieving recoveries of ±97.60–99.2%.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"29 ","pages":"Article 101061"},"PeriodicalIF":7.1,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143096449","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Strategies on utilizing biomass derived 5-hydroxymethylfufural by catalytic reactions: Pathways and mechanisms

IF 7.1 3区材料科学

Materials Today Sustainability Pub Date : 2024-12-05 DOI: 10.1016/j.mtsust.2024.101058

Serin Jung , Kyung Suh Kim , Geon Hyeong Park , Hyun Gil Cha , Hanseob Jeong , Myung Jong Kang

{"title":"Strategies on utilizing biomass derived 5-hydroxymethylfufural by catalytic reactions: Pathways and mechanisms","authors":"Serin Jung , Kyung Suh Kim , Geon Hyeong Park , Hyun Gil Cha , Hanseob Jeong , Myung Jong Kang","doi":"10.1016/j.mtsust.2024.101058","DOIUrl":"10.1016/j.mtsust.2024.101058","url":null,"abstract":"<div><div>Biomass refinery, produces chemicals that can replace pristine petroleum-derived chemicals through chemical/biological engineering processes, and is regarded as a renewable energy source for achieving environmental-friendly production and sustainability. Among various kinds of biomass derived chemicals, 5-hydroxymethylfufural (5-HMF), produced by the dehydration of fructose via glucose isomerization, has remarkable potential as a platform chemical for utilization in value-added products such as pharmaceutical, bio plastics, bio fuels and polyesters. Representative chemicals produced from 5-HMF are 2,5-diformylfuran and 2,5-furandicarboxylic acid, which are generated via oxidation reactions, and 2,5-bis(hydroxymethyl)furan which are generated via a reduction reaction. Theses oxidation/reduction products can potentially be used as value-added chemicals for polymer vitrimers, and in bioplastic monomers for replacing pristine polyethylene terephthalate, polyurethane and polyesters. Herein, the recent achievements in the catalytic conversion of 5-HMF to oxidation/reduction products using heterogeneous catalysts and electrocatalysts are presented, including the detailed catalytic mechanisms of 5-HMF valorization. The current challenges and future perspectives are discussed to prompt further studies and catalyst design for the oxidation/reduction of 5-HMF to useful chemicals.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"29 ","pages":"Article 101058"},"PeriodicalIF":7.1,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143135582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation of electrochemical features of a novel Ni2P2O7-Polyaniline nanohybrid as electroactive material in high-reliable supercapacitors

IF 7.1 3区材料科学

Materials Today Sustainability Pub Date : 2024-12-03 DOI: 10.1016/j.mtsust.2024.101054

Harish Chevulamaddi, Venkateswara Rao Kalagadda

{"title":"Investigation of electrochemical features of a novel Ni2P2O7-Polyaniline nanohybrid as electroactive material in high-reliable supercapacitors","authors":"Harish Chevulamaddi, Venkateswara Rao Kalagadda","doi":"10.1016/j.mtsust.2024.101054","DOIUrl":"10.1016/j.mtsust.2024.101054","url":null,"abstract":"<div><div>A novel nanohybrid of Ni<sub>2</sub>P<sub>2</sub>O<sub>7</sub>-Polyanaline (NPP) has been engineered to study energy storage performance. The nanohybrid was fabricated by surface coating of Ni<sub>2</sub>P<sub>2</sub>O<sub>7</sub> layered nanostructure (NPL) with the conductive polymer polyaniline (PANI). Initially, pristine Ni<sub>2</sub>P<sub>2</sub>O<sub>7</sub> layered nanostructure (NPL) was synthesized through single-step hydrothermal approach. Subsequently, hybrid composite (NPP) was constructed using in-situ oxidative polymerization of aniline monomer. The structural, morphological, and compositional properties of synthesized samples were characterized via XRD, FTIR, SEM, TEM, XPS and BET analysis. The electrochemical performances of the materials were evaluated for supercapacitor performance using Cyclic Voltammetry (CV), Galvanostatic Charge-Discharge (GCD) test, Electrochemical Impedance analysis (EIS), and cyclic stability assessments. The results demonstrated that the hybrid composite exhibited significantly enhanced capacitance of 1333.9 F/g at 1 mV/s, 1150 F/g at 1 A/g from CV and GCD measurements respectively, including impressive stability performance, retaining 95% of its capacitance over 7000 CV cycles. Furthermore, symmetrical supercapacitor device constructed using NPP electrodes and operated at potential window of 1.6 V. The assembled symmetric device demonstrated superior energy density, power density, and cycling performance. The improvements in the performance of the three and two-electrode systems are attributed to PANI coating on the NPL surface, indicating that the hybrid composite is promising candidate for highly reliable supercapacitors.</div></div>","PeriodicalId":18322,"journal":{"name":"Materials Today Sustainability","volume":"29 ","pages":"Article 101054"},"PeriodicalIF":7.1,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143096279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0