Materials Research Bulletin最新文献

{"title":"Enhanced visible-light photocatalytic H2 evolution over three-dimensional spiny spherical ZnxCd1-xS","authors":"Jiangli Liu,&nbsp;Xiaowei Wang,&nbsp;Yushen Zhang,&nbsp;Hua Zhao,&nbsp;Lei Shi","doi":"10.1016/j.materresbull.2025.113552","DOIUrl":"10.1016/j.materresbull.2025.113552","url":null,"abstract":"<div><div>Zn_xCd_1-xS has good solar visible region absorption and tunable band structure, is considered as a promising candidate for photocatalyst, yet the reports about three-dimensional Zn_xCd_1-xS were less. Herein, a novel three-dimensional spiny spherical Zn_xCd_1-xS were synthesized by a simple template-free hydrothermal process using cadmium chloride, zinc acetate, and thiourea as the precursors. Their hydrogen production properties were investigated. It was found that the highest photocatalytic H₂ production performance was achieved when the molar ratio of Zn and Cd was 6:4. Compared with CdS, its H₂ production rate was 1248.1 μmolg^-1h^-1, which increased by a factor of about 14 times. And it could show sustained hydrogen production capacity, and structural and morphological stability. And the quantum efficiency at 400 nm was 2.38 %. Obviously, due to its simple synthesis, inexpensive cost and controllable morphology, the prepared three-dimensional spiny spherical Zn_xCd_1-xS nanostructures have very promising applications in photocatalysis field.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"191 ","pages":"Article 113552"},"PeriodicalIF":5.3,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144071450","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Crystal structure controlled energy transfer to Tb3+ in KTb(MoO4)2 and K5Tb(MoO4)4 crystals","authors":"Muhammad Usama Jamal ,&nbsp;Vitali Nagirnyi ,&nbsp;Kirill Chernenko ,&nbsp;Aleksei Kotlov ,&nbsp;Yevheniia Smortsova ,&nbsp;Dmitry Spassky","doi":"10.1016/j.materresbull.2025.113553","DOIUrl":"10.1016/j.materresbull.2025.113553","url":null,"abstract":"<div><div>Luminescent properties of KTb(MoO₄)₂ and K₅Tb(MoO₄)₄ crystals, possessing the same elemental composition but different crystal structures, were studied. The structural arrangement of Tb³⁺ ions, ordered in KTb(MoO₄)₂ and disordered in K₅Tb(MoO₄)₄, determines their luminescence properties. Partial lattice disorder of K₅Tb(MoO₄)₄ results in broadened bands of Tb³⁺ emission and excitation spectra, but also in more efficient energy transfer from electron-hole excitations to Tb³⁺ due to the disorder-induced limitation of charge carriers’ mean path. It is shown that interband excitation of the Tb^{3+ 5}D₄ terms responsible for the green emission is realized via the intermediate stage of self-trapped exciton creation, while that of the ⁵D₃ terms responsible for the blue emission is realized through the impact interaction. Crystal structure determining the position of Tb³⁺ states in the electronic energy band structure and the distance between neighboring Tb³⁺ sites was found to strongly influence thermal stability and decay characteristics of the Tb³⁺ emission.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"191 ","pages":"Article 113553"},"PeriodicalIF":5.3,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143947966","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structures and properties of the Sb-doped PLZT ferroelectric ceramics around the morphotropic phase boundary","authors":"Lingfeng Li ,&nbsp;Changcheng Zhou ,&nbsp;Jinmin Zou ,&nbsp;Zhihong Luo ,&nbsp;Laijun Liu ,&nbsp;Yu Chen","doi":"10.1016/j.materresbull.2025.113549","DOIUrl":"10.1016/j.materresbull.2025.113549","url":null,"abstract":"<div><div>For the applications of piezoelectric energy harvester, both a large figure of merit and a high Curie temperature are required for ferroelectric ceramics. In this work, the Sb-doped PLZT (Pb_0.96La_0.04(Zr_1-<em>_x</em>Ti<em>_x</em>)O₃ + 0.5 wt.%Sb₂O₅) ceramics were synthesized by the conventional solid-state reaction process, and the compositional dependence of phase structures, microstructure and electrical properties were comprehensively investigated. Firstly, the manipulable R-T morphotropic phase boundary (MPB) has been successfully built by adjusting the Zr/Ti ratio, and the shift of MPB is found to significantly influence the dielectric properties and ferroelectric modes of the Sb-doped PLZT ceramics. The reduced polarization anisotropy in the MPB region provides a driving force for abnormal grain growth. Moreover, the presence of oxygen vacancies was verified in the ceramics by the X-ray photoelectron spectroscopy measurement. In particular, the ferroelectric properties and domain switching of the ceramics were analyzed in detail from the <em>P</em>-<em>E</em> and <em>J</em>-<em>E</em> hysterisis loops measured at different temperatures and electric fields. The internal bias field <em>E</em>_i increased with rise in temperature, as evidenced by the high concentration of oxygen vacancies identified in the sample with <em>x</em> = 0.47. The intrinsic relaxation phenomenon observed in the domain switching process was attributed to the short-range migration of singly ionized oxygen vacancies at elevated temperatures. With increasing temperature, thermal activation induces space charge and domain dynamics, causing Maxwell–Wagner polarization and polarization switching in the ceramic at lower electric fields. As benefited from the Sb-doping effect and an optimized MPB, the sample with <em>x</em> = 0.47 obtained excellent mechanical and electrical properties including <em>H</em>_v=3.97 GPa, <em>d</em>₃₃=529 pC/N, <em>T</em>_C=277 °C, <em>ε</em>_r=1167, <em>P</em>_r=28.33 μC/cm², and FOM (<em>d</em>₃₃×<em>g</em>₃₃)=27.08×10⁻¹² m²/N, which provide this material with enormous competitiveness for applications in piezoelectric energy harvesters.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"191 ","pages":"Article 113549"},"PeriodicalIF":5.3,"publicationDate":"2025-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143947964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nickel-polyimide-nickel based ultra-wideband octagonal solar absorber as a thermal emitter","authors":"Vikram Maurya,&nbsp;Sarthak Singhal","doi":"10.1016/j.materresbull.2025.113545","DOIUrl":"10.1016/j.materresbull.2025.113545","url":null,"abstract":"<div><div><strong>This paper presents a highly efficient ultrathin compact nickel-polyimide-nickel (Ni-Pi-Ni) based thermal emitter using an ultrawideband circular slot loaded corner notched octagonal solar absorber operating from infrared to ultraviolet (UV) spectrum.</strong> The total volume of the absorber is 90 × 90 × 11 nm³. Absorption (A)≥90 % is achieved across 133.4347–4252.739 THz (70.543–2248.29 nm) with an average of 98.37 %. The proposed symmetric structure is polarization insensitive and has <em>A</em>≥90 % for incident angles up to θ≤50° and ≥80 % for incident angles up to θ≤60°. It covers some parts of the infrared region and the complete visible and ultraviolet range, making it suitable for a wide range of solar applications. As a solar absorber, its solar absorption efficiency (η_A) is 98.4 %, and thermal emission efficiency (η_E) is 85.49 %, 89.79 %, 93.19 %, 95.46 %, 96.89 %, 97.8 %, 98.37 % at 500 K, 1000 K, 1500 K, 2000 K, 2500 K, 3000 K &amp; 3500 K respectively. <strong>Maximum 69.19 % Solar to Electrical Conversion Efficiency (</strong><span><math><msub><mrow><mi>η</mi></mrow><mrow><mi>sol</mi><mo>−</mo><mi>electrical</mi></mrow></msub></math></span><strong>) is achieved using the proposed solar absorber.</strong></div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"191 ","pages":"Article 113545"},"PeriodicalIF":5.3,"publicationDate":"2025-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143947376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synergistic activation of peroxymonosulfate through oxygen vacancies-rich Ni1.8Co1.2O4/halloysite catalyst for efficient environmental restoration: Performance and mechanism insights","authors":"Long Zhang ,&nbsp;Xiaolong Hu ,&nbsp;Rui Li ,&nbsp;Weimin Qian ,&nbsp;Junying Song ,&nbsp;Sana Wu ,&nbsp;Xiongbo Dong ,&nbsp;Qingbin Guo ,&nbsp;Dengzheng Gao ,&nbsp;Li Wang","doi":"10.1016/j.materresbull.2025.113547","DOIUrl":"10.1016/j.materresbull.2025.113547","url":null,"abstract":"<div><div>Introducing oxygen vacancies (OVs) is a prospective method to enhance the performance of eliminating persistent organic pollutants via sulfate radical-based advanced oxidation processes. In this paper, a novel Ni_1.8Co_1.2O₄/halloysite catalyst with abundant OVs was synthesized through water bath and calcination followed by non-stoichiometric doping method. By means of optimization and control experiments, the optimized catalyst achieved a norfloxacin (NOR) removal efficiency of 90.3 % within 40 min in the presence of peroxymonosulfate (PMS). The reaction rate constant in Ni_1.8Co_1.2O₄/halloysite-30 %/PMS system was 0.34 min⁻¹, which was around 1.5 times more than that in NiCo₂O₄/halloysite-30 %/PMS system. Halloysite alleviated the agglomeration of ultrafine Ni_1.8Co_1.2O₄ and contributed to the formation of OVs. The generation of OVs furnished supplementary active sites for the reaction and expedited the electron transfer. Radical quenching experiments verified that both ¹O₂ and SO₄^•− were the principal active species during the oxidation process. The enhanced catalytic activity could be ascribed to the fact that a substantial quantity of OVs in Ni_1.8Co_1.2O₄/halloysite-30 %, promoted the generation of ¹O₂ and SO₄^•−, especially ¹O₂. Based on the analysis of HPLC-MS, possible degradation pathways of NOR and the degradation mechanisms were deduced. In brief, this study could offer a new and innovative idea for the advancement of crystal defect engineering on the surface of spinel catalysts within the environmental domain.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"191 ","pages":"Article 113547"},"PeriodicalIF":5.3,"publicationDate":"2025-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143942560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nanoconfinement strategy for lightweight FeCoNi/N-doped carbon nanotubes with broadband electromagnetic absorption","authors":"Shengyuan Liang ,&nbsp;Junjie Wang ,&nbsp;Dunyan Jiang ,&nbsp;Lijun Wang ,&nbsp;Shikuo Li","doi":"10.1016/j.materresbull.2025.113548","DOIUrl":"10.1016/j.materresbull.2025.113548","url":null,"abstract":"<div><div>Designing rational and lightweight magnetic-dielectric composites for efficient electromagnetic wave absorption remains a significant challenge. Herein, the FeCoNi metal-induced nitrogen-doped carbon nanotubes (FeCoNi@NCNTs) were synthesized though unique nanoconfinement strategy during carbon thermal reduction reaction. In confined environment, sufficient conditions were provided for the multidimensional growth of nanostructures. The mechanisms of carbon nanotube growth and electromagnetic wave absorption were further investigated. The FeCoNi@NCNTs exhibited a minimum reflection loss of -59.5 dB within the 2–18 GHz frequency range. Moreover, the composite achieved a minimum effective absorption bandwidth of 5.3 GHz at 2.0 mm. This work provides a new insight for preparing various magnetic-dielectric composites with rich absorption effects and broadband microwave absorption.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"191 ","pages":"Article 113548"},"PeriodicalIF":5.3,"publicationDate":"2025-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143937099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Near-infrared scintillation characteristics of Nd3+-activated La2O3–TiO2–TeO2 glass and glass ceramics","authors":"Shuntaro Muneta ,&nbsp;Naoki Kawano ,&nbsp;Daisuke Nakauchi ,&nbsp;Takumi Kato ,&nbsp;Kai Okazaki ,&nbsp;Kensei Ichiba ,&nbsp;Akihiro Nishikawa ,&nbsp;Keiichiro Miyazaki ,&nbsp;Fumito Kagaya ,&nbsp;Kenji Shinozaki ,&nbsp;Takayuki Yanagida","doi":"10.1016/j.materresbull.2025.113544","DOIUrl":"10.1016/j.materresbull.2025.113544","url":null,"abstract":"<div><div>We fabricated a tellurite glass (NLTT) having a composition of 1Nd₂O₃–10La₂O₃–10TiO₂–79TeO₂ and its corresponding glass ceramics (NLTT490 and NLTT500), and investigated the luminescence characteristics for near-infrared (NIR) emitting scintillators. NLTT490 and NLTT500 were obtained through a heat treatment process of NLTT at 490 °C and 500 °C for 24 hours, respectively. Clear photoluminescence and scintillation peaks appeared in the NIR wavelength region, and the peak positions were consistent with those due to the Nd³⁺ f–f electronic transitions. The photoluminescence quantum yields were 46 % for NLTT, 40 % for NLTT490, and 41 % for NLTT500, showing a slight decrease by the heat treatment. All samples exhibited an almost linear relationship between the dose rate and the NIR intensity under X-ray. The heat treatment led to increase the intensity of NIR scintillation, and NLTT500 exhibited a minimum measurable dose rate (0.5 mGy/h), which was lower than that of Nd³⁺-activated Bi₄Si₃O₁₂ and GdVO₄ single crystals.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"191 ","pages":"Article 113544"},"PeriodicalIF":5.3,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143947965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Reduced graphene oxide modified ɛ-MnO2 nanoflowers cathode with oxygen vacancy for advanced rechargeable aqueous zinc-ion batteries","authors":"Chen Wang,&nbsp;Hong Liu,&nbsp;Litao Han,&nbsp;Jiajia Zhang,&nbsp;Renqiang Liu,&nbsp;Fanjun Kong","doi":"10.1016/j.materresbull.2025.113543","DOIUrl":"10.1016/j.materresbull.2025.113543","url":null,"abstract":"<div><div>Manganese dioxide (MnO₂) has become a great potential cathode material for aqueous zinc-ion batteries (AZIBs), owing to its advantages such as high theoretical capacity, moderate potential window, low price and abundant reserves. However, the inner poor electrical conductivity and sluggish reaction kinetics of MnO₂ can lead to the irreversible phase transition and capacity decay, limiting its further application. Herein, we developed a simple co-precipitation method to construct reduced graphene oxide modified MnO₂ nanoflowers with hexagonal structure (MnO₂/RGO). Ascribed to the synergetic effects of MnO₂ nanoflowers with high theoretical capacity and RGO with high conductivity and stability, the MnO₂/RGO composite delivers excellent zinc-ion storage performance with superior cycling stability (222.0 mAh g⁻¹ at 0.2 A g⁻¹ after 200 cycles and 72.6 mAh g⁻¹ at 2.0 A g⁻¹ after 3000 cycles), fast charge transfer and ion diffusion kinetics.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"191 ","pages":"Article 113543"},"PeriodicalIF":5.3,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143931697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Erratum to “Tuning the lattice strain through manipulating crystal structure of high entropy oxides enhances electrocatalytic performance” [Materials Research Bulletin 186 (2025) 113333]","authors":"Ali Burcay Coskuner,&nbsp;Tuncay Erdil,&nbsp;Cagla Ozgur,&nbsp;Uygar Geyikci,&nbsp;Cigdem Toparli","doi":"10.1016/j.materresbull.2025.113526","DOIUrl":"10.1016/j.materresbull.2025.113526","url":null,"abstract":"","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"190 ","pages":"Article 113526"},"PeriodicalIF":5.3,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143924936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Preparation of metal-organic framework-derived Fe-CoZnCN-T nanocomposites and their microwave absorption performance","authors":"Shuning Ren ,&nbsp;Pengfei Ju ,&nbsp;Haojie Yu ,&nbsp;Bohua Nan ,&nbsp;Li Wang ,&nbsp;Aizhen Lian ,&nbsp;Xusheng Zang ,&nbsp;Hongyu Liang","doi":"10.1016/j.materresbull.2025.113517","DOIUrl":"10.1016/j.materresbull.2025.113517","url":null,"abstract":"<div><div>With advancing technology, electromagnetic wave applications are expanding, yet associated radiation increasingly threatens precision instruments and human health, necessitating high-performance absorption materials. Metal-organic frameworks (MOFs) emerge as promising candidates due to their lightweight design, structural tunability, and porosity. This study synthesized three Fe-CoZnCN-T composites through Fc-ZIF-8@CoZn-ZIF pyrolysis at 700 °C, 800 °C, and 900 °C. Structural characterization via TEM/XRD/VSM/Raman revealed optimized dielectric/magnetic properties in Fe-CoZnCN-700. When blended with paraffin (30 wt%), this composite demonstrated exceptional impedance matching and wave dissipation. At 2 mm thickness, Fe-CoZnCN-700 achieved a minimum reflection loss of -61.95 dB at 15.20 GHz with &gt;5.42 GHz effective bandwidth, outperforming counterparts processed at higher temperatures. The balanced permittivity-permeability synergy in 700 °C-derived material underscores its potential for ultrathin microwave absorbers in GHz-range applications.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"190 ","pages":"Article 113517"},"PeriodicalIF":5.3,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143924933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}