Article
Energy & Fuels
N. S. C. Mazlan, F. A. Halim Yap, M. S. Yahya, S. B. Mohamed, N. A. Sazelee, N. A. Ali, I. Jusoh, M. Ismail
Summary: This study focuses on the catalytic effect of TiF3 on the hydrogen storage properties of the MgH2-Na3AlH6-LiBH4 system produced by ball milling. The addition of TiF3 catalyst results in a faster hydrogen uptake and release rate compared to the catalyst-free system. The apparent activation energy for the dissociation of Li3AlH6, MgH2, and NaBH4 in the TiF3-doped composite is significantly reduced. TiF3's catalytic performance is attributed to the in-situ production of Al-Ti and Al-F phases during the dehydrogenation process.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Xin Zhang, Lingchao Zhang, Wenxuan Zhang, Zhuanghe Ren, Zhenguo Huang, Jianjiang Hu, Mingxia Gao, Hongge Pan, Yongfeng Liu
Summary: This work presents an effective synthetic strategy for low-temperature and highly reversible hydrogen cycling with LiBH4 nanocomposite, showing superior hydrogen sorption capabilities and stable cyclability. The key factor influencing hydrogen cycling is the reactivity of boron, which has been successfully addressed in this study. The synergistic effects of nanostructuring and nanocatalysis contribute to efficient formation of BH4- hydrogenation and elemental boron during dehydrogenation process, shedding light on new strategies for practical hydrogen storage applications in borohydride family.
Article
Chemistry, Physical
Heng Lu, Jianbo Li, Tianyu Xie, Yu'an Chen, Yangfan Lu, Zhongqing Liu, Qian Li, Fusheng Pan
Summary: This study reports that with the help of Al/AlH3, NaBH4 can serve as a reversible hydrogen storage host and reactant in the Mg/MgH2 system. The addition of Al species can promote the decomposition and reformation of NaBH4, leading to improved performance of the hydrogen storage material.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Hui Luo, Yunshu Yang, Liwen Lu, Guangxu Li, Xinhua Wang, Xiantun Huang, Xiaoma Tao, Cunke Huang, Zhiqiang Lan, Wenzheng Zhou, Jin Guo, Haizhen Liu
Summary: In this study, a two-dimensional Ti3CN MXene was synthesized and added to the Li-Mg-B-H composite, resulting in a reduction in the dehydrogenation temperature and induction period of the composite. The reversible capacity and capacity retention ratio of the composite were maintained at high levels. Micro-structure studies revealed the transformation of Ti3CN into highly-dispersed nano-TiB2, which acted as an active catalyst to improve the kinetics and reversibility of the composite. This research provides insights into the role of MXene in tailoring the hydrogen storage properties of metal borohydride-based composites.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Machi Kanna, Hikaru Oyama, Tomoyuki Ichikawa, Keita Yamamoto, Hiroki Miyaoka, Yoshitsugu Kojima, Takayuki Ichikawa
Summary: NaBH4 does not absorb NH3 below 100 kPa, while LiBH4 absorbs NH3 at lower pressures. Mixed borohydrides demonstrate a synergistic phenomenon where they absorb NH3 at low pressures and liquefy above 100 kPa. The kinematic viscosity of the liquefied state changes during NH3 absorption.
CHEMICAL COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Shaolei Zhao, Long Liang, Baozhong Liu, Limin Wang, Fei Liang
Summary: The introduction of lithium nitride as a catalyst in aluminum hydride significantly reduces the dehydrogenation temperature and provides stable hydrogen capacity. Adjusting the mass fraction of lithium nitride enables the release of hydrogen at different temperatures.
Article
Chemistry, Physical
N. N. Sulaiman, M. Ismail, A. H. A. Rashid, N. A. Ali, N. A. Sazelee, S. N. Timmiati
Summary: The hydrogen sorption performances of the 4MgH(2) + LiAlH4 system destabilized with 5 wt% Al2TiO5 showed significantly improved dehydrogenation temperature and kinetics. The introduction of Al2TiO5 resulted in earlier hydrogen liberation and enhanced absorption and desorption kinetics, indicating a synergistic effect on hydrogen storage behavior.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Nurul Amirah Ali, Muhammad Amirul Nawi Ahmad, Muhammad Syarifuddin Yahya, Noratiqah Sazelee, Mohammad Ismail
Summary: The effect of nanosized CoTiO3 additive on the desorption behavior of LiAlH4 was investigated for the first time in this study. The addition of CoTiO3 improved the desorption behavior of LiAlH4, reducing the desorption temperature and increasing the desorption rate. The experimental results suggest that the CoTiO3 additive promoted notable advancements in the desorption performance of LiAlH4 through the in situ-formed active species.
Article
Engineering, Environmental
Yongyang Zhu, Shaoyang Shen, Liuzhang Ouyang, Jiangwen Liu, Hui Wang, Zhenguo Huang, Min Zhu
Summary: This study reports an economical method to synthesize Mg(BH4)(2) by converting B-O bonds in widely available borates or boric acid to B-H. This method avoids expensive boron sources and high pressure and temperature conditions, significantly reducing costs, and could be an alternative to the current synthesis processes of Mg(BH4)(2).
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Geo Jong Kim, Hyun Tae Hwang
Summary: Hydrogen from sodium borohydride can be generated by thermolysis or hydrolysis, but both methods have drawbacks such as high temperatures required or safety concerns. A new process, thermal hydrolysis of SBH, is proposed to address these issues and achieve efficient hydrogen production.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Energy & Fuels
Weitao Shi, Feifan Hong, Renhuan Li, Ruolin Zhao, Sizhi Ding, Ziqi Liu, Peilin Qing, Yi Fan, Haizhen Liu, Jin Guo, Zhiqiang Lan
Summary: MnO2-doped Ti3C2 was used as a catalyst to enhance the hydrogen storage performance of MgH2. The doped sample exhibited good adsorption ability at room temperature and could absorb 5.13 wt% hydrogen in 400 s at 75°C. The composite did not alter the thermodynamic properties of MgH2 and formed multiphase interfaces, improving the hydrogen storage performance. This study provides a new strategy for preparing efficient catalysts for hydrogen storage applications.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Engineering, Environmental
Kaicheng Xian, Bo Nie, Zigen Li, Mingxia Gao, Zhenglong Li, Congxiao Shang, Yongfeng Liu, Zhengxiao Guo, Hongge Pan
Summary: A synergetic approach was developed to improve the properties of lithium borohydride (LiBH4) for solid-state hydrogen storage, by constructing an active porous core-shell network structure with optimized TiO2 fraction, enabling effective confinement of LiBH4 and enhancement of hydrogen sorption properties.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Jikai Ye, Guanglin Xia, Xuebin Yu
Summary: By reacting graphene-wrapped Al with LiBH4, this study achieved the destabilization of LiBH4, improving the reaction efficiency between LiBH4 and Al and demonstrating complete dehydrogenation and hydrogenation of LiBH4.
MATERIALS TODAY ENERGY
(2021)
Article
Chemistry, Physical
Qian Li, Ning Miao, Jinling Zhong, Chengzhang Wu, Haiyan Leng
Summary: This study investigates the effect of KH on the hydrogen storage properties of graphene-doped MgH2, in comparison with KOH. The results demonstrate that the addition of 1 wt% KH and 1 wt% graphene significantly enhances the hydrogen storage performance of MgH2. It desorbs 6.0 wt% H2 within 30 min at 300°C, faster than pure MgH2. However, the desorption rate and activation energy are slower and larger, respectively, than the sample doped with KOH and graphene. Formation of the catalyst KMgH3 is observed with both KH and KOH, indicating that the H-H exchange between KH and MgH2 may suppress the desorption of MgH2, while the in-situ formed MgO by KOH addition promotes MgH2 desorption.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Xiao-Sheng Liu, Hai-Zhen Liu, Ning Qiu, Yan-Bing Zhang, Guang-Yao Zhao, Li Xu, Zhi-Qiang Lan, Jin Guo
Summary: In this study, NbF5 was successfully used to improve the cycling properties of MgH2-AlH3 composite, leading to a stable hydrogen desorption capacity during cycling. The addition of NbF5 is able to reduce pulverization of the composite during cycling, enhancing the material's stability.
Article
Chemistry, Multidisciplinary
Xi Chen, Zhao Li, Yue Zhang, Dongming Liu, Chunyang Wang, Yongtao Li, Tingzhi Si, Qingan Zhang
FRONTIERS IN CHEMISTRY
(2020)
Article
Chemistry, Physical
Z. Li, J. Z. Yu, Y. Zhang, D. M. Liu, C. Y. Wang, T. Z. Si, Y. T. Li, Q. A. Zhang
Summary: By utilizing a synergy strategy of confinement and metallic catalysis, NaAlH4 desorption close to room temperature was achieved for the first time, resulting in significant enhancements in hydrogen storage properties of complex hydrides.
JOURNAL OF POWER SOURCES
(2021)
Article
Engineering, Electrical & Electronic
Rui Tong, Weipeng Zhang, Ximan Ke, Dongming Liu, Zhongwei Zhang
Summary: The study shows that alkaline texturing results in better surface doping concentration, junction depth, and passivation effect compared to MACE texturing. Combining MACE and alkaline texturing processes generates structures that lead to higher conversion efficiency in solar cells.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2021)
Article
Chemistry, Physical
Yue Zhang, Ming Zhang, Dongming Liu, Zhixin Ba, Yongtao Li, Tingzhi Si, Qingan Zhang
Summary: The effects of solid-state hydrogen introduction on the oxidation combustion property and mechanism of Al2Mg alloy were investigated. It was found that hydrogenation can lower the starting combustion temperature of Al2Mg alloy and change its oxidation mechanism. Various oxides such as MgAl2O4, γ-Al2O3, and α-Al2O3 were formed during the oxidation of hydrogenated Al2Mg alloy, while AlN was hardly generated.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Zhao Li, Rui Liu, Dongming Liu, Yue Zhang, Tingzhi Si, Yongtao Li
Summary: In this study, three-dimensional interconnection porous cobalt was successfully prepared and applied as an effective catalyst for accelerating NaBH4 hydrolysis to produce hydrogen. The experimental results demonstrated high hydrogen generation rate and provided insights into the catalytic properties of nanoporous metals.
REACTION KINETICS MECHANISMS AND CATALYSIS
(2021)
Article
Energy & Fuels
Rui Tong, Shicheng Zhang, Dongming Liu, Weipeng Zhang, Yutao Wang, Xiaofeng Liu
Summary: The study shows that the thickness of the Al2O3 layer needs to balance surface and bulk passivation effects of SiNx:H, with lower RI of SiNx:H displaying better hydrogen passivation capability. Thinner Al2O3 layer facilitates faster stabilization of boron-oxygen complexes during efficiency restoration.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2021)
Article
Chemistry, Multidisciplinary
Xiang Chen, Qicheng Wang, Yuwen Cheng, Hanlu Xing, Junzhe Li, Xianjun Zhu, Lianbo Ma, Yongtao Li, Dongming Liu
Summary: In this study, a one-step method was developed to grow S-doped FeOOH nanosheets on iron foam (IF) as efficient electrocatalysts for hydrogen evolution reaction. The as-obtained S-FeOOH/IF electrode showed excellent OER performance with low overpotential and high activity.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Physical
Xiang Chen, Zhaojian Qiu, Hanlu Xing, Shunxin Fei, Junzhe Li, Lianbo Ma, Yongtao Li, Dongming Liu
Summary: This study proposes a strategy for developing robust water oxidation catalysts by utilizing composition changes and structure reconstruction. By tuning the amount of sulfur, a tunable bifunctional electrocatalyst is achieved, resulting in a lower voltage requirement for overall water splitting.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Engineering, Electrical & Electronic
Rui Tong, Hui Zheng, Sheng Ma, Dongming Liu, Changtong Xu, Weipeng Zhang, Xiaofeng Liu
Summary: This paper investigates the effect of thermal oxidation on the performance of passivated emitter and rear cells (PERC) after the diffusion process. It is found that post-oxidation using an annealing furnace improves the electrical properties of solar cells and mitigates laser-induced damage during the laser doping process.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2022)
Article
Engineering, Electrical & Electronic
Rui Tong, Chengcheng Li, Sheng Ma, Xiaofeng Liu, Shuai Zou, Dongming Liu
Summary: This study examined the influence of upright pyramids (UPs) and inverted pyramids (IPs) structures on the surface reflectance, phosphorus diffusion, surface passivation, and quantum efficiency of solar cells. The results showed that IPs structure had advantages in front side reflectance, P captured ability, back side passivation effect, and silver-silicon contact resistivity. However, its poor surface passivation performance limited the efficiency of fabricated solar cells compared to UPs-structured wafers.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Nanoscience & Nanotechnology
Cuizhen Yang, Tingyao Wang, Chengcheng Li, Haiyan He, Dongming Liu, Huajie Huang
Summary: In this study, a facile soft chemistry strategy was employed to synthesize two-dimensional ultrathin PdMo bimetallene tightly coupled with Ti3C2T x MXene nanosheets. The PdMo bimetallene exhibits unsaturated Pd atoms and combines bimetallic alloy and strain effects, while the Ti3C2T x matrix optimizes the electronic structure of PdMo bimetallene and enhances the electrical conductivity. The resulting PdMo/Ti3C2T x x nanoarchitecture demonstrates superior electrocatalytic properties compared to conventional Pd nanoparticle catalysts supported by Ti3C2T x and carbon matrices.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Xiang Chen, Xinyue Xu, Yuwen Cheng, He Liu, Dongdong Li, Yumin Da, Yongtao Li, Dongming Liu, Wei Chen
Summary: The study presents a facile strategy to enhance the oxygen evolution reaction (OER) activity of Ni-based materials through doping and interfacial modulation. Experimental and theoretical results demonstrate that this strategy can effectively tune the binding energies of OER intermediates and reduce the energy barrier, leading to significantly improved OER activity.
Article
Chemistry, Inorganic & Nuclear
Chengcheng Li, Anyang Bao, Cuizhen Yang, Guoqiang Liu, Xiang Chen, Mengyue Li, Yuwen Cheng, Dongming Liu
Summary: In this study, multi-interfacial NiS/Ni3S2/Fe3O4 nanoarchitectures were successfully designed and fabricated, exhibiting exceptional oxygen evolution reaction performance and remarkable durability. This study provides inspiration for the design of novel electrocatalysts via constructing hybrid compound interfaces.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Multidisciplinary
Fang Liang, Ding Xiaoli, Song Yun, Liu Dongming, Li Yongtao, Zhang Qingan
CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
(2019)
Article
Materials Science, Multidisciplinary
Liu Yang, Shixin Zhao, Dongming Liu, Yongtao Li, Tingzhi Si
MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS
(2019)
Article
Chemistry, Physical
J. Zamora, T. Bautista, N. S. Portillo-Velez, A. Reyes-Montero, H. Pfeiffer, F. Sanchez-Ochoa, H. A. Lara-Garcia
Summary: Experimental and DFT studies were conducted on the structural, magnetic, and optical properties of RFeO3 perovskites. The perovskites exhibited an orthorhombic crystal structure and weak ferromagnetic behavior. They were confirmed to be semiconductors with a bandgap of approximately 2.1 eV.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xianxiang Lv, Jing Jin, Weiguang Yang
Summary: By depositing TiN and TiO2 surface layers on AlSi films, the electrochemical performance of silicon-based anodes can be significantly improved, suppressing volume expansion and promoting the formation of a stable SEI layer.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Sharafat Ali, Haider Ali, Syedul Hasnain Bakhtiar, Sajjad Ali, Muhammad Zahid, Ahmed Ismail, Pir Muhammad Ismail, Amir Zada, Imran Khan, Huahai Shen, Rizwan Ullah, Habib Khan, Mohamed Bououdina, Xiaoqiang Wu, Fazal Raziq, Liang Qiao
Summary: The construction and optimization of redox-heterojunctions using a bifunctional phosphate as an electron-bridge demonstrated significant improvements in photo catalytic activity, including enhanced dispersion, reduced interfacial migration resistance, and increased abundance of active-sites.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ren-Ni Luan, Na Xu, Chao-Ran Li, Zhi-Jie Zhang, Yu-Sheng Zhang, Jun Nan, Shu-Tao Wang, Yong-Ming Chai, Bin Dong
Summary: Extensive research has revealed that oxygen evolution reaction (OER) in alkaline conditions involves dynamic surface restructuring. The development and design of sulfide/oxide pre-catalysts can reasonably adjust the composition and structure after surface reconstruction, which is crucial for OER. This study utilized a simple two-step hydrothermal method to achieve in situ S leaching and doping, inducing the composition change and structure reconstruction of CoFe oxides. The transformed FeOOH and CoOOH exhibited excellent OER activity and could be easily mass-produced using low-cost iron based materials and simple methods.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jun'an Lai, Daofu Wu, Peng He, Kang An, Yijia Wang, Peng Feng, WeiWei Chen, Zixian Wang, Linfeng Guo, Xiaosheng Tang
Summary: Zero-dimensional organic-inorganic metal halides (OMHs) are gaining attention in the fabrication of light-emitting diodes due to their broad emission band and high photoluminescence quantum yield. This work synthesized a zero-dimensional organic tetraphenylphosphonium bismuth chloride (TBC) that showed efficient blue light emission, with the emission mechanism attributed to the transition of Bi3+ ions. White light-emitting diodes (WLEDs) were fabricated using TBC, along with green-emitting and red-emitting single crystals, achieving single-component white emissions. These findings demonstrate the different emission mechanism of ns2 ions-based OMHs and highlight the potential of bismuth-based OMHs in WLEDs applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xuewei Liang, Yunhai Su, Taisen Yang, Zhiyong Dai, Yingdi Wang, Xingping Yong
Summary: The revolutionary design concept of high-entropy alloys has brought new opportunities and challenges to the development of advanced metal materials. In this work, AlCrCuFe2NiTix high-entropy flux cored wires were prepared by combining the design idea of a high-entropy alloy with the characteristics of flux cored wire. AlCr-CuFe2NiTix high-entropy surfacing alloys were prepared using gas metal arc welding technology. The wear properties of the alloys were analyzed, and the phase composition, microstructure, strengthening mechanism, and wear mechanism were discussed. The results show that the alloys exhibit a dendritic microstructure with BCC/B2 + FCC phases. Increasing Ti content leads to the precipitation of Laves phase. The alloys show improved microhardness and wear resistance due to the precipitation of coherent B2 and Laves phases. However, excessive Ti addition results in the increase of Laves phase and reduced wear resistance of the alloys.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
M. Vadivel, M. Senthil Pandian, P. Ramasamy, Qiang Jing, Bo Liu
Summary: This work presents the enhanced photocatalytic and electrochemical performance of g-C3N4 assisted PAA on CoFe2O4 ternary nanocomposites. The incorporation of PAA and g-C3N4 improves the separation efficiency of photogenerated charge carriers, resulting in superior photocatalytic degradation and high specific capacitance values.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Vibhu T. Sivanandan, Ramany Revathy, Arun S. Prasad
Summary: In this study, pure and doped cobalt ferrite nanoparticles were prepared using the sol-gel auto-combustion method with the aid of lemon juice as eco-fuel. The crystal structure, lattice parameter, crystallite size, microstrain, optical parameters, and room temperature magnetic properties of the samples were analyzed. The effect of doping on the magnetic properties was also investigated.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qing Guo, Bowen Zhang, Benzhe Sun, Yang Qi
Summary: This study prepared ZnO films with various nonpolar preferred orientations using conventional chemical bath deposition method and characterized their growth process and mechanism. It was found that the type and concentration of nitrate could control the preferred orientation and surface roughness of ZnO films. Additionally, ZnO films with different preferred orientations exhibited different optical properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Chong Zhang, Yan Liu, Zhaoyan Wang, Hang Yang
Summary: In this study, six bimetallic FeCo particles were synthesized via the hydrothermal method at different Fe:Co ratios. The Fe:Co ratio not only modulates the composition of the particles but also influences their structure and magnetic properties. The FeCo alloys showed a transformation from an Fe-based structure to a Co-based structure with increasing Co content. The Fe:Co ratio of 1:1 and 3:1 resulted in particles with the highest and lowest saturation magnetization, respectively.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jianning Zhang, Jing Li, Yiren Wang, Xiaodong Mao, Yong Jiang
Summary: We conducted a study on the formation of ultra-fine Y-Ti-Ta-O nano-oxides in Ta+B micro-alloyed 13CrWTi-ODS alloys using electron microscopy and first-principles calculations. The Y-Ti-Ta-O nano-oxides were found to be mainly Y2(Ti,Ta)2O7, with an average size of 7 nm and a number density of 6.8 x 1023 m-3. Excess boron was found to enhance the adhesion of some low-sigma grain boundaries but weaken the Fe/Y2Ti2O7 interface, while excess tantalum enhanced the Fe/Y2Ti2O7 interface but caused serious degradation of grain boundaries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Yirong Fang, Pei Cheng, Hang Yuan, Hao Zhao, Lishu Zhang
Summary: A new composite system of nitrogen-doped reduced graphene oxide and black phosphorus quantum dots has been developed for tumor therapy, showing improved electrochemical properties and stability. The system generates hydrogen peroxide and hydroxyl radical to effectively kill tumor cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xiufang Qin, Yuanli Ma, Hui Zhang, Ting Zhang, Fang Wang, Xiaohong Xu
Summary: The structure and magnetism of cobalt ferrites after Mn2+-Tb3+ co-doping were studied. Co-doped samples exhibited cubic spinel structure and spherical shape of ferrite nanoparticles. The redistribution of Co2+ and Fe3+ ions between octahedral and tetrahedral sites was observed due to Mn2+-Tb3+ co-doping. The coercivity and magnetization saturation of co-doped samples were significantly improved, leading to a maximum energy product that is 190% higher than that of the un-doped sample.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ho Yeon Lee, Wonjong Yu, Yoon Ho Lee
Summary: Recently, there has been an increasing interest in developing ultra-fine nanostructured electrodes with extensive reaction areas to enhance the performance and low-temperature operation of solid oxide fuel cells. The use of a refined approach involving co-sputtering metal alloys and oxide targets has demonstrated the feasibility of nano-columnar structures in perovskite-based electrodes, expanding the temperature range of thin film electrodes. This study systematically examines the effects of chamber pressure control in the co-sputtering process and identifies the intricate relationship between sputtering pressure and film structure. By fine-tuning the columnar growth in the electrode, significant improvements in performance and thermo-mechanical properties were achieved, resulting in high-performance all-sputtered solid oxide fuel cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qianyun Bai, Xiaoxiao Yan, Da Liu, Kang Xiang, Xin Tu, Yanhui Guo, Renbing Wu
Summary: This study proposes a simple method to develop a non-precious transition metal-based electrocatalyst with high catalytic activity and robustness for the hydrogen evolution reaction. The as-synthesized electrode exhibits a low overpotential and high current density, indicating its potential in energy conversion.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
