Diamond and Related Materials最新文献

{"title":"Corrigendum to “Modeling the zero-phonon line of strained SnV centers in diamond; Including reflections on computational cost and accuracy”, [Diam. Relat. Mater. 165 (2026), 113669]","authors":"Danny E.P. Vanpoucke","doi":"10.1016/j.diamond.2026.113735","DOIUrl":"10.1016/j.diamond.2026.113735","url":null,"abstract":"","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"166 ","pages":"Article 113735"},"PeriodicalIF":5.1,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148231301","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":"Outside Front Cover - Journal name, Cover image, Volume issue details, ISSN, Cover Date, Elsevier Logo and Society Logo if required","authors":"","doi":"10.1016/S0925-9635(26)00525-X","DOIUrl":"10.1016/S0925-9635(26)00525-X","url":null,"abstract":"","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"166 ","pages":"Article 113814"},"PeriodicalIF":5.1,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148231302","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":"MOF-derived SN Co-doped carbon supported small-sized Ni nanoparticles for efficient CO2 reduction to CO","authors":"Yuchen Zhang ,&nbsp;Yuying Feng ,&nbsp;Miao Zhang ,&nbsp;Zhiwei Yu ,&nbsp;Xian Sun ,&nbsp;Li Zhang","doi":"10.1016/j.diamond.2026.113791","DOIUrl":"10.1016/j.diamond.2026.113791","url":null,"abstract":"<div><div>Utilizing renewable energy to catalyze the reduction of CO₂ into diverse high-value products represents an effective pathway for mitigating carbon emissions. Nickel-based catalysts benefit from natural abundance and low cost. Moreover, their CO₂ activation capability and *CO desorption characteristics can be optimized through rational structural design to modulate the adsorption energy of reaction intermediates. These properties make them viable alternatives to noble metal catalysts. In this study, a two-step method termed “pyrolysis-doping” was employed to synthesize the Ni@SNC catalyst, which consists of small-sized Ni nanoparticles supported on S<img>N co-doped carbon, facilitating efficient electrocatalytic CO₂ reduction reaction (CO₂RR). In the Ni@SNC structure, the coordination of surface Ni nanoparticles with N generates active sites, while S doping modulates the electronic state of these sites to optimize the adsorption of *COOH and the desorption of *CO. Performance tests indicated that Ni@SNC achieved a maximum CO Faradaic efficiency (FE_CO) of 94.6% at −0.9 V (vs. RHE), with a corresponding CO partial current density (j_CO) of 13.4 mA cm⁻², while exhibiting excellent stability during an extended electrolysis. Various characterizations and experiments have shown that S doping selectively etched the carbon layer, thereby increasing the electrochemically active area (ECSA). Furthermore, S doping modulated the electronic configuration of Ni<img>N sites, enhancing the balance between adsorption and desorption of reaction intermediates. This work thus provides a new design method for creating efficient and stable non-precious metal CO₂ reduction catalysts.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"166 ","pages":"Article 113791"},"PeriodicalIF":5.1,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148168015","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":"Electrically tunable and thermally reconfigurable ultrathin metal-free THz absorber for refractive index biosensing","authors":"Raj Kumar Gupta ,&nbsp;Jitendra Bahadur Maurya","doi":"10.1016/j.diamond.2026.113789","DOIUrl":"10.1016/j.diamond.2026.113789","url":null,"abstract":"<div><div>An ultrathin, metal-free terahertz <span><math><mfenced><mi>THz</mi></mfenced></math></span> absorber based on a hybrid configuration of graphene and vanadium dioxide <span><math><mfenced><mrow><mi>VO</mi><mo>₂</mo></mrow></mfenced></math></span> structure is presented and numerically investigated. The integration of phase-change <span><math><mi>VO</mi><mo>₂</mo></math></span> and electrically tunable graphene enables a compact and actively controllable <span><math><mi>THz</mi></math></span> absorber with an overall thickness of approximately <span><math><mi>λ</mi><mo>/</mo><mn>150</mn></math></span> resulting in an ultrathin device. The resonance response can be actively adjusted by tuning the chemical potential of graphene through an external bias. The absorber operates in two distinct regimes determined by the phase state of <span><math><mi>VO</mi><mo>₂</mo><mo>.</mo></math></span> When <span><math><mi>VO</mi><mo>₂</mo></math></span> is in the metallic state, several dipolar resonances are excited, producing a broadband absorption response spanning <span><math><mn>5</mn><mo>−</mo><mn>18</mn><mspace></mspace><mi>THz</mi></math></span>. In contrast, in the insulating state of <span><math><mi>VO</mi><mo>₂</mo><mo>,</mo></math></span> the number of resonances is reduced, and a single dominant resonance appears at <span><math><mn>9.926</mn><mspace></mspace><mi>THz</mi><mspace></mspace></math></span>with a full width at half maximum <span><math><mfenced><mi>FWHM</mi></mfenced><mspace></mspace></math></span>of <span><math><mn>0.094</mn><mspace></mspace><mi>THz</mi></math></span>. This sharp resonance makes the structure suitable for sensing applications. The broadband absorption region can be effectively utilized for THz electromagnetic shielding, while the narrowband response enables refractive index sensing. The proposed absorber achieves a maximum sensitivity of <span><math><mn>1.944</mn><mspace></mspace><mi>THz</mi><mo>/</mo><mi>RIU</mi></math></span> and a figure of merit <span><math><mfenced><mi>FOM</mi></mfenced></math></span> of <span><math><mn>32.46</mn><mspace></mspace><mi>RIU</mi><mo>⁻</mo><mn>1</mn><mo>.</mo></math></span> Furthermore, its sensing capability is evaluated using different biological samples, such as blood, breast, and skin tissues, demonstrating its applicability in biomedical diagnostics.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"166 ","pages":"Article 113789"},"PeriodicalIF":5.1,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148168517","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":"Fabrication of MnO2/graphene/boron-doped diamond composite electrodes for high-performance supercapacitors","authors":"Yanyan Shen ,&nbsp;Yanlei Su ,&nbsp;Shuntao Jia ,&nbsp;Hong jun Hei ,&nbsp;Shengwang Yu ,&nbsp;Jie Gao","doi":"10.1016/j.diamond.2026.113786","DOIUrl":"10.1016/j.diamond.2026.113786","url":null,"abstract":"<div><div>This study presents a hierarchical MnO₂/graphene/boron-doped diamond (MnO₂/G/BDD) composite electrode to overcome the low capacitance and poor interfacial stability of diamond-based electrochemical materials. The electrode was constructed via a three-step process: (i) deposition of a BDD film on a Si wafer via microwave plasma chemical vapor deposition, followed by peeling to obtain a freestanding plate; (ii) in-situ growth of a three-dimensional graphene network via catalytic transformation of a Ni interlayer; and (iii) electrodeposition of MnO₂ at 0.9 V, with deposition time as a key variable. The MnO₂/G/BDD electrode (MnO₂ deposited for 2100 s) exhibits a microsphere-like morphology and delivers exceptional electrochemical performance, achieving a maximum areal capacitance of 574.52 mF/cm² at a scan rate of 10 mV/s, which is 205 times higher than that of the G/BDD substrate. It also shows a minimal charge-transfer resistance of 0.4 Ω and outstanding stability (89.65% capacitance retention after 1000 cycles). Our results clearly show that the 3D graphene interlayer serves as a high-conductivity channel for rapid electron transport, while the outer diamond and MnO₂ layers retain their intrinsic properties. Additionally, the in-situ grown three-dimensional graphene network provides sufficient anchoring sites for MnO₂, thereby enhancing the interfacial adhesion between the BDD plate and MnO₂.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"166 ","pages":"Article 113786"},"PeriodicalIF":5.1,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148168612","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":"Enhanced supercapacitor and OER/HER performance of MOF-derived CuMn2O4 decorated on carbon nanotube-modified carbon felt","authors":"Hadiseh Mohammadi Kalimani ,&nbsp;Jamal Mazloom ,&nbsp;Morteza Safari","doi":"10.1016/j.diamond.2026.113776","DOIUrl":"10.1016/j.diamond.2026.113776","url":null,"abstract":"<div><div>Carbon-based substrates are commonly used as conductive scaffolds for electrochemical energy storage due to their excellent electrical conductivity, flexibility, and porous structure, which promote rapid charge transport and electrolyte infiltration. However, the inherently inert surfaces of these materials restrict the adhesion of active materials and uniform growth. In this study, we propose a modification of carbon felt (CF) using carbon nanotubes (CNTs) through dip-coating, followed by the growth of metal-organic framework-derived CuMn₂O₄ nanoparticles. This approach is intended to enhance the performance of the CuMn₂O₄@CNT/CF electrode in supercapacitor applications and the oxygen evolution reaction (OER) as well as the hydrogen evolution reaction (HER). X-ray diffraction and field emission scanning electron microscopy analyses confirm that the formation of crystalline spinel CuMn₂O₄ nanoparticles is distributed on CNT-coated carbon felt. The CuMn₂O₄@CNT/CF sample demonstrated superior supercapacitive behavior compared to CuMn₂O₄/CF as a cathode electrode. Conversely, Fe₂O₃ nanofibers prepared by a sol–gel electrospinning procedure and loaded onto CF were used as the anode. The CuMn₂O₄@CNT<strong>//</strong>Fe₂O₃ asymmetric supercapacitor device provided an energy density of 16.3 Wh kg⁻¹ at a corresponding power density of 699.8 W kg⁻¹. During the OER and HER measurements, the CuMn₂O₄@CNT/CF electrode achieved overpotentials of 337 mV for OER and 141 mV for HER to attain the benchmark current density of ±10 mA cm⁻², with corresponding Tafel slopes of 62 mV dec⁻¹ and 174 mV dec⁻¹, respectively. Overall, these results indicate the effectiveness of CNT interlayers in revealing full potentials of CF substrates for energy storage and OER/HER applications.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"166 ","pages":"Article 113776"},"PeriodicalIF":5.1,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148168614","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":"Corrigendum to “Electrically tunable metal-graphene reflective metasurface for phase superposition-based multibeam generation for terahertz 6G communications” [Diam. Relat. Mater. 165 (2026) 113627]","authors":"Abdelkarim S. Elhenawy ,&nbsp;Ahmed Allam ,&nbsp;Haruichi Kanaya ,&nbsp;Adel B. Abdel-Rahman","doi":"10.1016/j.diamond.2026.113736","DOIUrl":"10.1016/j.diamond.2026.113736","url":null,"abstract":"","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"166 ","pages":"Article 113736"},"PeriodicalIF":5.1,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148231419","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":"Partially unzipped fluorinated multi-walled carbon nanotube - electrode material for metal-free oxygen electrodes","authors":"M.O. Danilov ,&nbsp;G.I. Dovbeshko ,&nbsp;S.S. Fomanyuk ,&nbsp;O.P. Gnatyuk ,&nbsp;I.I. Gnatyuk ,&nbsp;V. Boiko ,&nbsp;O. Bezkrovnyi ,&nbsp;B.M. Romanyuk ,&nbsp;T. Sabov ,&nbsp;I.A. Rusetskyi ,&nbsp;G.Ya. Kolbasov","doi":"10.1016/j.diamond.2026.113795","DOIUrl":"10.1016/j.diamond.2026.113795","url":null,"abstract":"<div><div>The method of electrochemical anodic oxidation of multi-walled carbon nanotubes in electrolytes based on ethylene glycol, water and ammonium fluoride was used to synthesize partially unzipped multi-walled carbon nanotubes (PUMWCNTs). It has been shown that anodic oxidation of multi-walled carbon nanotubes results in individual non-agglomerated PUMWCNTs. An original approach is proposed, which includes electrochemical splitting of nanotubes in an electrolyte containing ammonium fluoride. Unzipping introduces oxygen-containing and fluorine functional groups and edge sites, altering the electronic structure, increasing surface area, and improving charge transfer. This makes them excellent for energy storage and electrocatalysis for fuel cells oxygen electrodes. By electron microscopy, X-ray phase analysis, IR spectroscopy, XPS and Raman spectra it was proved that fluorine doped PUMWCNTs were synthesized at room temperature. It was shown that fluorine-doped de-agglomerated PUMWCNTs containing different graphite forms as result of synthesis, quantum dots including, are very good catalysts of oxygen reduction reaction for oxygen electrodes of fuel cells, which are similar to platinum-containing materials in their characteristics and are stable during six-month tests. Results were achieved for the zinc oxygen cell at a peak load for PUMWCNTs of 520 mW cm⁻² and for platinum-containing electrodes of 650 mW cm⁻² by polarization at 0.4 <em>V</em>. This result makes it possible to produce metal - free catalysts working in the same way as electrodes containing noble metals.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"166 ","pages":"Article 113795"},"PeriodicalIF":5.1,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148168610","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":"Molecular dynamics study of diamane dehydrogenation: from hydrogen divacancy through domains of bilayer graphene to diamane quantum dots","authors":"Alexey I. Podlivaev ,&nbsp;Konstantin P. Katin","doi":"10.1016/j.diamond.2026.113779","DOIUrl":"10.1016/j.diamond.2026.113779","url":null,"abstract":"<div><div>Tight-binding molecular dynamics are employed to study the dehydrogenation of diamane under heating. We found that desorption of atomic hydrogen predominates during the initial stage rather than H₂ desorption or carbon skeleton rearrangement. Arrhenius formula yields the activation energy of 2.59 eV for the first hydrogen atom desorption. The presence of a hydrogen vacancy facilitates the desorption of the second hydrogen atom from the opposite carbon layer, leading to the rapid formation of a divacancy. Then hydrogen near the divacancy preferentially desorbs, resulting in the growth of a dehydrogenated region. Within this region, the interlayer bonds break, forming bilayer graphene. However, the interlayer bonds remain intact within the hydrogenated domains. The minimal hydrogenated domain capable of sustaining stable interlayer C<img>C bonds comprises 8 hydrogen atoms. In such a domain, the rupture of an interlayer bond is preserved by an energy barrier of 2.31 eV. Partially dehydrogenated diamane, containing both dielectric and conductive domains, could be promising for applications in all‑carbon 2D nanoelectronics.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"166 ","pages":"Article 113779"},"PeriodicalIF":5.1,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148168017","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":"Dopamine derived nanoarchitectonics nitrogen and sulfur dual doped hollow carbon spheres with interconnected micro-mesopores for supercapacitor application","authors":"Ning Zhang ,&nbsp;Yue Zhou ,&nbsp;Lei Liu ,&nbsp;Yang Yu","doi":"10.1016/j.diamond.2026.113794","DOIUrl":"10.1016/j.diamond.2026.113794","url":null,"abstract":"<div><div>Nitrogen and sulfur dual-doped hollow carbon spheres were synthesized using dopamine as carbon precursor and L-cysteine as catalyst. The resulting hollow carbon spheres exhibited a uniform diameter of approximately 80 nm and featured a well-developed interconnected micro-/mesoporous structure. The synergistic effect of nitrogen and sulfur co-doping contributed to their superior electrochemical performance. The materials achieved a high specific capacitance of 320 F g⁻¹ at a current density of 0.5 A g⁻¹ in a three-electrode configuration with 6 M KOH as the electrolyte. Furthermore, in a symmetric all-solid-state supercapacitor, they demonstrated a competitive specific capacitance of 256 F g⁻¹ at 1 A g⁻¹, along with a good rate capability, retaining 79% of the capacitance as the current density increased twentyfold. In addition, the carbon spheres exhibited a favorable energy density of 9.8 Wh kg⁻¹ at a power density of 100 W kg⁻¹, highlighting their potential for high-performance energy storage applications.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"166 ","pages":"Article 113794"},"PeriodicalIF":5.1,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148168518","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}