Pub Date : 2026-02-06DOI: 10.1016/j.jallcom.2026.186666
Jae Won Choi, Seong-Joon Won, Jung-Min Cho, Yun-Ho Kim, Gangmin Park, Dong-Hoon Jang, No-Won Park, Gil-Sung Kim, Sangjun Jeon, Sang-Kwon Lee
{"title":"Temperature-dependent Spin Thermopowers in Pt/Ni80Fe20/Al2O3 Heterostructures via the Longitudinal Spin Seebeck Effect","authors":"Jae Won Choi, Seong-Joon Won, Jung-Min Cho, Yun-Ho Kim, Gangmin Park, Dong-Hoon Jang, No-Won Park, Gil-Sung Kim, Sangjun Jeon, Sang-Kwon Lee","doi":"10.1016/j.jallcom.2026.186666","DOIUrl":"https://doi.org/10.1016/j.jallcom.2026.186666","url":null,"abstract":"","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"1 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2026-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146134273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-06DOI: 10.1016/j.jallcom.2026.186661
Nayely Pineda Romero, Joanna Grelska, Wojciech A. Sławiński, Jakub Cizek, Oksana Melikhova, Claudia Zlotea
Multi-principal element alloys have emerged as promising candidates for solid-state hydrogen storage but, their absorption/desorption cyclability remains poorly understood. In this study, the cycling behavior of four compositions in the bcc TiVNb related alloy family (ternary TiVNb, quaternary Al0.05(TiVNb)0.95, and two quinary Al0.05(TiVNb)0.95−xMox (x = 0.05, 0.10) variants) is highlighted to emphasize the effect of chemistry on the capacity degradation mechanisms. The best alloys showing a very fast stabilization of their performance and a minimum loss of capacity during cycling are the quinary ones, while TiVNb is the poorest one. Repeated cycling does not induce metal chemical species migration, phase segregation, or changes in average and local structures, as demonstrated by SEM-EDS, synchrotron-based total scattering, and related pair distribution function analysis coupled with reverse Monte Carlo modeling. Metal atoms are randomly distributed in the bcc lattice of these alloys, which enhances structural integrity during cycling. The only significant change that could explain the different cycling properties is related to defects’ evolution. Positron annihilation spectroscopy revealed the formation of both dislocations and vacancies during cycling, irrespective of the composition. However, the dynamics of defects strongly depends on the chemical composition: dislocations and vacancies are larger in volume in the ternary alloy than in the quinary variants, which suggests a lower defect mobility in the presence of Al and Mo. These results demonstrate that tailoring and controlling defect dynamics is paramount in enhancing the cycle-life properties of the multi-principal element alloys.
{"title":"Low mobility of crystalline defects improves the cycle life stability of Alx(TiVNb)1-x-yMoy alloys for hydrogen storage","authors":"Nayely Pineda Romero, Joanna Grelska, Wojciech A. Sławiński, Jakub Cizek, Oksana Melikhova, Claudia Zlotea","doi":"10.1016/j.jallcom.2026.186661","DOIUrl":"https://doi.org/10.1016/j.jallcom.2026.186661","url":null,"abstract":"Multi-principal element alloys have emerged as promising candidates for solid-state hydrogen storage but, their absorption/desorption cyclability remains poorly understood. In this study, the cycling behavior of four compositions in the <em>bcc</em> TiVNb related alloy family (ternary TiVNb, quaternary Al<sub>0.05</sub>(TiVNb)<sub>0.95</sub>, and two quinary Al<sub>0.05</sub>(TiVNb)<sub>0.95−<em>x</em></sub>Mo<sub><em>x</em></sub> (<em>x</em> = 0.05, 0.10) variants) is highlighted to emphasize the effect of chemistry on the capacity degradation mechanisms. The best alloys showing a very fast stabilization of their performance and a minimum loss of capacity during cycling are the quinary ones, while TiVNb is the poorest one. Repeated cycling does not induce metal chemical species migration, phase segregation, or changes in average and local structures, as demonstrated by SEM-EDS, synchrotron-based total scattering, and related pair distribution function analysis coupled with reverse Monte Carlo modeling. Metal atoms are randomly distributed in the <em>bcc</em> lattice of these alloys, which enhances structural integrity during cycling. The only significant change that could explain the different cycling properties is related to defects’ evolution. Positron annihilation spectroscopy revealed the formation of both dislocations and vacancies during cycling, irrespective of the composition. However, the dynamics of defects strongly depends on the chemical composition: dislocations and vacancies are larger in volume in the ternary alloy than in the quinary variants, which suggests a lower defect mobility in the presence of Al and Mo. These results demonstrate that tailoring and controlling defect dynamics is paramount in enhancing the cycle-life properties of the multi-principal element alloys.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"301 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2026-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146122161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-06DOI: 10.1016/j.jallcom.2026.186681
Muhammad Wasim Afzal, Muhammad Imran Kanjal, RuiFeng Ren, Yuanyuan Zhang, Iram Yasmin, Saira Sabir, Shazia Ashraf, Xue Liu, Yan Bai, Dong-Bin Dang
The electrochemical CO2 reduction reaction (eCO2RR) to produce valuable products is a promising strategy for mitigating carbon emissions and combating climate change. Indium-based catalysts demonstrate high activity and selectivity in this process, particularly in formate production. However, achieving high Faradaic efficiency, stability, and selectivity toward the desired products, while controlling the adsorption of competitive intermediates *COOH and *OCHO on In-based materials with precision, remains a significant challenge. To address this challenge, we introduce a cerium-doped indium-based material (InCe0.4BTC) as a highly efficient and stable electrocatalyst for CO2 reduction (CO2RR). Specifically engineered for formate (HCOOˉ) production, this catalyst modifies the electronic structure of indium to enhance its performance. The InCe0.4BTC catalyst demonstrated an impressive 96% Faradaic efficiency (FE) for formate (HCOOˉ) production at -1.0 V versus the reversible hydrogen electrode (RHE), significantly surpassing the performance of traditional In-based catalysts. It also demonstrated exceptional long-term stability, maintaining an average FE of 95.5% over 50 h. The catalyst achieved a partial current density of 25 mA cm-2 for formate production at -1.0 V vs. RHE, highlighting its potential for high-rate CO2 reduction. The InCe0.4BTC catalyst exhibited enhanced charge-transfer properties and superior selectivity for formate, thereby addressing the significant limitations of In-based catalysts. Density functional theory (DFT) calculations further revealed that Ce doping alters the electronic structure of the catalyst, enhancing its interaction with the *OCHO intermediate. These results highlight the potential of InCe0.4BTC as a highly promising catalyst for efficient, stable CO2 reduction, offering exciting possibilities for renewable energy storage and carbon capture.
电化学CO2还原反应（eCO2RR）生产有价值的产品是一种有前途的减少碳排放和应对气候变化的策略。铟基催化剂在该过程中表现出较高的活性和选择性，特别是在甲酸酯生产中。然而，在精确控制竞争中间体*COOH和*OCHO在in基材料上的吸附的同时，实现对所需产物的高法拉第效率、稳定性和选择性仍然是一个重大挑战。为了解决这一挑战，我们引入了一种掺铈铟基材料（InCe0.4BTC）作为高效稳定的二氧化碳还原（CO2RR）电催化剂。该催化剂专为甲酸盐（HCOO）的生产而设计，可以改变铟的电子结构以提高其性能。与可逆氢电极（RHE）相比，InCe0.4BTC催化剂在-1.0 V下生成甲酸（HCOO）的法拉第效率（FE）达到了令人印象深刻的96%，大大超过了传统in基催化剂的性能。该催化剂还表现出了优异的长期稳定性，在50小时内平均FE保持在95.5%。与RHE相比，在-1.0 V条件下，该催化剂的部分电流密度为25 mA cm-2，可以生产甲酸盐，突出了其高速二氧化碳还原的潜力。InCe0.4BTC催化剂表现出增强的电荷转移性能和对甲酸盐的优越选择性，从而解决了in基催化剂的重大局限性。密度泛函理论（DFT）计算进一步表明，Ce掺杂改变了催化剂的电子结构，增强了其与*OCHO中间体的相互作用。这些结果突出了InCe0.4BTC作为高效、稳定的二氧化碳减排催化剂的潜力，为可再生能源储存和碳捕获提供了令人兴奋的可能性。
{"title":"Efficient Electroreduction of CO2 to Formate via Stable Cerium-Doped Indium-Based Metal-Organic Framework","authors":"Muhammad Wasim Afzal, Muhammad Imran Kanjal, RuiFeng Ren, Yuanyuan Zhang, Iram Yasmin, Saira Sabir, Shazia Ashraf, Xue Liu, Yan Bai, Dong-Bin Dang","doi":"10.1016/j.jallcom.2026.186681","DOIUrl":"https://doi.org/10.1016/j.jallcom.2026.186681","url":null,"abstract":"The electrochemical CO<sub>2</sub> reduction reaction (eCO<sub>2</sub>RR) to produce valuable products is a promising strategy for mitigating carbon emissions and combating climate change. Indium-based catalysts demonstrate high activity and selectivity in this process, particularly in formate production. However, achieving high Faradaic efficiency, stability, and selectivity toward the desired products, while controlling the adsorption of competitive intermediates *COOH and *OCHO on In-based materials with precision, remains a significant challenge. To address this challenge, we introduce a cerium-doped indium-based material (InCe<sub>0.4</sub>BTC) as a highly efficient and stable electrocatalyst for CO<sub>2</sub> reduction (CO<sub>2</sub>RR). Specifically engineered for formate (HCOOˉ) production, this catalyst modifies the electronic structure of indium to enhance its performance. The InCe<sub>0.4</sub>BTC catalyst demonstrated an impressive 96% Faradaic efficiency (FE) for formate (HCOOˉ) production at -1.0<!-- --> <!-- -->V versus the reversible hydrogen electrode (RHE), significantly surpassing the performance of traditional In-based catalysts. It also demonstrated exceptional long-term stability, maintaining an average FE of 95.5% over 50<!-- --> <!-- -->h. The catalyst achieved a partial current density of 25<!-- --> <!-- -->mA<!-- --> <!-- -->cm<sup>-2</sup> for formate production at -1.0<!-- --> <!-- -->V vs. RHE, highlighting its potential for high-rate CO<sub>2</sub> reduction. The InCe<sub>0.4</sub>BTC catalyst exhibited enhanced charge-transfer properties and superior selectivity for formate, thereby addressing the significant limitations of In-based catalysts. Density functional theory (DFT) calculations further revealed that Ce doping alters the electronic structure of the catalyst, enhancing its interaction with the *OCHO intermediate. These results highlight the potential of InCe<sub>0.4</sub>BTC as a highly promising catalyst for efficient, stable CO<sub>2</sub> reduction, offering exciting possibilities for renewable energy storage and carbon capture.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"91 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2026-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146122155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-06DOI: 10.1016/j.jallcom.2026.186659
Sunil Shrestha, McKinley A. Prager, Kazuumi Fujioka, Rui Sun, Craig M. Jensen
{"title":"Kinetic and Modeling Studies of the Mechanism of the Dehydrogenation of Mg(BH4)2 to Mg(B3H8)2","authors":"Sunil Shrestha, McKinley A. Prager, Kazuumi Fujioka, Rui Sun, Craig M. Jensen","doi":"10.1016/j.jallcom.2026.186659","DOIUrl":"https://doi.org/10.1016/j.jallcom.2026.186659","url":null,"abstract":"","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"307 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2026-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146134261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Elastic accommodation and anomalous tetragonality of thin-plate martensite in an Fe-31Ni-10Co-3Ti alloy revealed by in situ neutron diffraction at cryogenic temperatures","authors":"Takayuki Yamashita, Stefanus Harjo, Wu Gong, Takuro Kawasaki, Shigekazu Morito, Satoshi Morooka, Hidetoshi Fujii, Yo Tomota","doi":"10.1016/j.jallcom.2026.186668","DOIUrl":"https://doi.org/10.1016/j.jallcom.2026.186668","url":null,"abstract":"","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"48 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2026-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146134263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-06DOI: 10.1016/j.jallcom.2026.186676
Xiaoyu Tian, Fangfei Lv, Meng Zhang, Wei-Wei Wang, Lili Huo
{"title":"Universal synthesis of mesoporous alumina supported nitride catalysts for hydrogen production from ammonia decomposition","authors":"Xiaoyu Tian, Fangfei Lv, Meng Zhang, Wei-Wei Wang, Lili Huo","doi":"10.1016/j.jallcom.2026.186676","DOIUrl":"https://doi.org/10.1016/j.jallcom.2026.186676","url":null,"abstract":"","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"182 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2026-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146134266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-06DOI: 10.1016/j.jallcom.2026.186667
Zhanhua Ye, Chi Zhang, Yang Liu, Xiaoxi Jin, Tianyu Wei, Yaojun Lin, Fei Chen
{"title":"A Multiscale Data-Driven Framework for Mechanical Property Prediction in LPBF-Processed TA15 Alloy: Integrating Explainable Machine Learning with Data Augmentation","authors":"Zhanhua Ye, Chi Zhang, Yang Liu, Xiaoxi Jin, Tianyu Wei, Yaojun Lin, Fei Chen","doi":"10.1016/j.jallcom.2026.186667","DOIUrl":"https://doi.org/10.1016/j.jallcom.2026.186667","url":null,"abstract":"","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"30 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2026-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146134268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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