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
Energy & Fuels
Haoyuan Li, Qiang Fu, Hongyun Qin, Xia Chen, Qicheng Zhang, Hui Zhang, Shoudong Wang, Zixu Dong, Ming Wang
Summary: In this study, the controllable and continuous MgH2 hydrolysis was achieved by using an optimized porous filter element, which provides valuable reference for continuous MgH2 hydrolysis.
Article
Engineering, Environmental
Ke Wang, Xin Zhang, Yongfeng Liu, Zhuanghe Ren, Xuelian Zhang, Jianjiang Hu, Mingxia Gao, Hongge Pan
Summary: This study developed a novel graphene-guided nucleation and growth process to prepare N-doped Nb2O5 nanorods, which significantly improved the hydrogen storage properties of MgH2. MgH2 doped with the nanorods released a substantial amount of hydrogen at lower temperatures, and demonstrated faster kinetics in reloading hydrogen.
CHEMICAL ENGINEERING JOURNAL
(2021)
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
Chemistry, Physical
Dezhu Tan, Cong Peng, Qingan Zhang
Summary: In this study, a Mg-Ni-TiS2 composite was synthesized through a solution-based method, which showed improved hydrogen desorption kinetics due to the synergistic catalytic effect of Mg2NiH4, TiH2, and TiS2. The composite also exhibited high cycle stability. This work provides a feasible approach for the development of Mg-based hydrogen storage materials.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Cong Peng, Yongtao Li, Qingan Zhang
Summary: This paper proposes a new approach to improve the sorption kinetics of magnesium hydride by catalyzing it with highly dispersed nickel nanoparticles. The experiment demonstrates that the in-situ formation of highly dispersed Ni nanoparticles in the MgH2 matrix significantly enhances the hydrogen desorption kinetics and retention rate of MgH2.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
N. A. Sazelee, N. A. Ali, M. S. Yahya, M. F. Md Din, M. Ismail
Summary: In this study, BaMnO3 was used as an additive to improve the drawbacks of MgH2, resulting in a lower desorption temperature, faster absorption kinetics, and lower activation energy. The formation of certain compounds enhanced the performance of MgH2.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Review
Materials Science, Multidisciplinary
Hang Yang, Zhao Ding, Yu-Ting Li, Shao-Yuan Li, Ping-Keng Wu, Quan-Hui Hou, Yang Zheng, Biao Gao, Kai-Fu Huo, Wen-Jia Du, Leon L. Shaw
Summary: Developing safer and more efficient hydrogen storage technology is crucial for the realization of the hydrogen economy. MgH2 has been extensively studied as a promising solid-state hydrogen storage material due to its lightweight, high storage density, and abundant reserves. However, practical applications have been hindered by issues such as stable thermodynamics, sluggish kinetics, and rapid capacity decay.
Article
Chemistry, Physical
Chen Jin, Haoyuan Zheng, Li Wang, Haizhen Liu, Xinhua Wang, Mi Yan
Summary: Adding rare earth hydride CeH2.51 significantly improves the hydrogen storage performance of Mg(NH2)2-2LiH, enhancing the hydrogen absorption/desorption kinetics and cycle performance. The sample doped with 7.5 wt% CeH2.51 shows the best comprehensive performance, with reduced activation energy and stable hydrogen storage capacity after cycles.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Environmental
Haizhen Liu, Xingqing Duan, Zhiye Wu, Hui Luo, Xinhua Wang, Cunke Huang, Zhiqiang Lan, Wenzheng Zhou, Jin Guo, Mohammad Ismail
Summary: In this work, a bimetallic open layered Ti2VC2 MXene was successfully synthesized and showed good enhancing impact on the hydrogen storage properties of MgH2. MgH2-Ti2VC2 starts dehydrogenation at a lower temperature and both MgH2-Ti2VC2 and MgH2-Ti2VAlC2 can start rehydrogenation at room temperature. The reversible capacity of MgH2-Ti2VC2 only slightly decreases after 100 cycles.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Metallurgy & Metallurgical Engineering
Yaokun Fu, Lu Zhang, Yuan Li, Sanyang Guo, Han Yu, Wenfeng Wang, Kailiang Ren, Wei Zhang, Shumin Han
Summary: Hydrogen storage is a crucial aspect of the hydrogen economy, and solid-state hydrogen storage is the most promising approach. In this study, a ternary transition metal sulfide FeNi2S4 with a hollow balloon structure was designed as a catalyst for MgH2 to enhance its dehydrogenation/hydrogenation performance by constructing a MgH2/Mg2NiH4-MgS/Fe system.
JOURNAL OF MAGNESIUM AND ALLOYS
(2023)
Article
Chemistry, Physical
Chaodong Hu, Zhiwen Zheng, Tingzhi Si, Qingan Zhang
Summary: The amorphous TiMgVNi3-doped MgH2, prepared by ball milling under a hydrogen atmosphere, exhibits enhanced dehydrogenation kinetics and cycle durability due to the in situ formation of catalytic nanoparticles from an amorphous phase.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Peng Wang, Zhihui Tian, Zexuan Wang, Chaoqun Xia, Tai Yang, Xiulong Ou
Summary: In this study, transition metal sulfides were used as catalysts to enhance the hydrogen storage behaviors of MgH2. The addition of sulfides significantly increased the desorption and absorption kinetics of hydrogen in MgH2, with MgH2-TiS2 showing the best performance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Environmental Sciences
Kanhaiya Chawla, Deepak Kumar Yadav, Abhinav Bajpai, Sushant Kumar, Chhagan Lal
Summary: This study investigates the improvement of hydrogen storage properties of MgH2 by using activated carbon as a catalyst in MgH2-AC nanocomposites. The results show that the presence of activated carbon helps reduce oxygen in MgO phase, leading to significantly enhanced absorption capacity and kinetics in the MgH2-AC nanocomposites. The nanocomposites also exhibit high hydrogenation properties with the presence of beta- and gamma-phases of MgH2, as supported by XRD data.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Chemistry, Physical
J. L. Snider, T. M. Mattox, Y-S Liu, L. F. Wan, P. Wijeratne, M. D. Allendorf, V Stavila, B. C. Wood, L. E. Klebanoff
Summary: LiH significantly improves the hydrogenation of MgB2, lowering the temperature and without forming undesirable intermediates, while TiH2 is essentially inert when mixed with MgB2 during high-pressure hydrogenation.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Materials Science, Multidisciplinary
Hao Dong, Yuzeng Chen, Yongchun Guo, Guibin Shan, Guoyu Yang, Linke Huang, Feng Liu, Qian Li
Summary: A novel multicomponent accumulative roll bonding (MARB) approach was proposed and successfully applied to prepare a nanostructured Ag/Cu multilayered composite. The MARB approach effectively suppresses shear band formation and reduces the thickness of the composite to 40 nm in only 6 cycles. The as-prepared nanostructured Ag/Cu multilayered composite exhibits high hardness (2.24 GPa) and high electrical conductivity (84% of international annealed copper standard; IACS), attributed to atomically ordered and chemically sharp hetero-phase interfaces and low density of grain boundaries resulting from the MARB process.
MATERIALS CHARACTERIZATION
(2023)
Article
Engineering, Environmental
Xiaowen Lu, Tingting Luo, Mingyang Zhang, J. Hugh Horton, Qiong Wu, Wei Wu, Man Qiao, Yu Wang, Zhijun Li
Summary: The size and geometry of supported metal ensembles are crucial in the design of effective heterogeneous catalysts. In this study, supported single atomic-layered, low-nuclearity palladium catalysts were created using an electronic and structural engineering strategy. These atomically dispersed Pd catalysts exhibited excellent catalytic activity in the hydrogenation of levulinic acid to 1,4-pentanediol, a reaction of importance for biomass conversion. Theoretical calculations revealed that the high catalytic activity was a result of cooperation between adjacent Pd atoms and strong electronic metal-support interactions.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Li Wang, Liuting Zhang, Xiong Lu, Fuying Wu, Xuan Sun, Hu Zhao, Qian Li
Summary: CrMnFeCoNi and CrFeCoNi high-entropy alloys (HEAs) were used to enhance the hydrogen storage performance of MgH2. Among them, Mn-containing HEAs nanosheets showed the best performance. The MgH2-CrMnFeCoNi composite could release 6.5 wt% H2 in 10 min at 300°C and started to absorb H2 at 40°C. After 20 cycles at 300°C, 97% of the hydrogen storage volume could be maintained, demonstrating good cycling performance.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Mingyu Fan, Ye Cui, Zhongwu Zhang, Liyuan Liu, Qian Li, Qun Luo
Summary: The effect of Ho addition on the oxidation behavior of Mg-Zn-Y-Ho alloys at 500 degrees C in air was investigated. Results showed that the addition of Ho can improve the high-temperature oxidation resistance of Mg-3Y-2Zn-12Ho alloys. With a 12 wt% Ho addition, the parabolic rate constant decreased by 75% compared to alloys without Ho addition. This improvement can be attributed to the formation of dense Ho2O3, which reduces the inward oxygen diffusion coefficient by 3 orders of magnitude compared to Y2O3. Additionally, the addition of Ho in the Mg-Y-Zn alloy maintained excellent tensile properties.
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
Jinzhou Li, Chao Chen, Zepeng Lv, Wansen Ma, Meng Wang, Qian Li, Jie Dang
Summary: A carbon, nitrogen co-doped porous Co2P catalyst anchored on bimetallic MXene nanosheets (MX@MOF-Co2P) exhibited excellent electrocatalytic performance for the oxygen evolution reaction (OER) with small overpotentials and low Tafel slope. The exceptional performance was attributed to the porous structure, electronic structure modulation, and synergistic effect between cobalt phosphide and MXenes.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Zepeng Lv, Jinshuai Fei, Yang You, Xuewei Lv, Qian Li, Jie Dang
Summary: Exfoliated Ti3C2Tx MXenes are used as a substrate to grow polypore N,Ni-Co2P nanoarrays through in situ interface-growth strategy, resulting in heterointerfaces for efficient overall water splitting.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Neurosciences
Linxuan Zhang, Zehao Zeng, Xiaoyu Lu, Mengqing Li, Jiayu Yao, Guangjing Zou, Zhaorong Chen, Qian Li, Changqi Li, Fang Li
Summary: Methamphetamine (Meth) is a highly addictive CNS stimulant, and effective treatment for Meth addiction is currently lacking. This study investigates the role of cell adhesion molecules (CAMs) in Meth addiction and specifically focuses on Contactin 1 (CNTN1). The findings suggest that CNTN1 expression in the nucleus accumbens (NAc) plays a crucial role in Meth-induced addiction, and the mechanism may involve the expression of synapse-associated proteins in the NAc. Silencing CNTN1 expression in the NAc can reverse Meth-induced conditioned place preference (CPP) and decrease the expression levels of NR2A, NR2B, and PSD95 in the NAc.
NEUROTOXICITY RESEARCH
(2023)
Article
Chemistry, Physical
Li Wang, Yuyuan Zhao, Xu Zhang, Qianwen Liu, Qun Luo, Zhihong Yu, Xiaohua Yang, Qian Li
Summary: This work investigates the influence of 2H and 3R phase content on the hydrogen storage and electrochemical properties of A5B19-type LaY2Ni10.6Mn0.5Al0.3 alloys. The results show that the 2H and 3R phases have similar hydrogen storage and electrochemical properties but different structural stability during cycling. The smaller volume expansion of the 2H phase leads to better structural and cycling stability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Qun Luo, Meng Cong, Hongxia Li, Longfei Zhu, Hongcan Chen, Qian Li
Summary: In this paper, an effective method for Fe removal from Al-7Si alloys by adding Sn is proposed. The Fe content reduction in Sn reaches 33.8%, comparable to adding B. More Fe-rich compounds are deposited at the bottom after Sn addition. The β-Sn was found to attach to the β-Al9Fe2Si2 phase, leading to more deposition of β-Al9Fe2Si2 due to its higher density compared to the alloy.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Hu Yao, Guang Zeng, Qinfen Gu, Kazuhiro Nogita, Jing Guo, Qian Li
Summary: The influences of microstructure evolution induced by thermal-mechanical processing on the hydrogen storage performance of Mg-Ni-Gd-Y-Zn-Cu alloys were investigated. The extruded alloy showed higher hydrogen absorption capacity and faster hydrogen ab/desorption kinetics due to refined alpha-Mg grains and the presence of 14H-type LPSO phases. These findings have implications for the design and manufacturing of magnesium-based hydrogen storage materials.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Review
Materials Science, Multidisciplinary
Zechun Wang, Shiyao Chen, Shenglan Yang, Qun Luo, Yancheng Jin, Wei Xie, Lijun Zhang, Qian Li
Summary: In recent years, high-entropy alloys (HEAs) have attracted a lot of attention in the materials community, and significant progress has been made in exploring the potential of lightweight refractory high-entropy alloys (RHEAs) with excellent high-temperature properties. This paper provides a comprehensive review of the recent progress and status of lightweight RHEAs, including classifications, fundamental data, computational approaches, preparation techniques, mechanical properties, and behaviors at different temperatures.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Applied
Wansen Ma, Zeming Qiu, Jinzhou Li, Liwen Hu, Qian Li, Xuewei Lv, Jie Dang
Summary: Developing efficient and low-cost non-noble metal-based bifunctional catalysts for hydrogen and oxygen evolution reactions in alkaline media is challenging but meaningful. The key to improving reaction efficiency is to enhance the catalyst's electronic structure for optimized adsorption of intermediates and reduced reaction energy barrier. In this research, a V-doped Co2P coupled with high-entropy MXene heterostructure catalyst was prepared and showed excellent HER and OER activity and long-term stability. This work provides new strategies for the application of high-entropy MXene and the design of novel non-noble metal-based bifunctional electrolytic water catalysts.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Wansen Ma, Meng Wang, Chaowen Tan, Jiancheng Wang, Yanan Dai, Liwen Hu, Xuewei Lv, Qian Li, Jie Dang
Summary: Surface regulation of electrocatalysts is crucial for improving alkaline hydrogen evolution reaction (HER) performance. In this study, transition metal-doped Ni3N nanosheets were prepared and studied for efficient alkaline HER. Experimental and computational characterization demonstrated the unique electronic structure and composition of the catalysts. The down-shifting of d-band center and transition metal doping facilitated the adsorption of water and significantly enhanced the alkaline HER performance. The V-doped Ni3N catalyst exhibited remarkable activity with low overpotential, suggesting a promising strategy for rational design of efficient HER electrocatalysts.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Physical
Wenxian Li, Zulin Sun, Riyue Ge, Jiancheng Li, Yiran Li, Julie M. M. Cairney, Rongkun Zheng, Ying Li, Sean Li, Qian Li, Bin Liu
Summary: MoS2 with 2D structure shows efficient HER performance, and the La-doped Ni3S2/MoS2 heterointerface with nanoflower-like structures exhibits excellent OER performance. The La-NMS@NF heterostructure optimizes the water and H* adsorption/desorption, improving HER performance.
