Article
Chemistry, Physical
Jianbo Zhao, Haifeng Yuan, Guang Yang, Yingfan Liu, Xiaomei Qin, Zheng Chen, Cheong Weng-Chon, Liming Zhou, Shaoming Fang
Summary: The Au-Pt bimetallic nanoparticles immobilized on SBA-15 were prepared with uniform size and existing in the form of alloy structure, exhibiting higher activity and selectivity compared to monometallic catalysts. The observed properties were attributed to the synergic effect between Au and Pt, enhancing abilities of hydrogen dissociation and adsorption and activation of quinoline. This precise synthetic strategy provides a new and main approach for selective hydrogenations with high performance.
Article
Chemistry, Multidisciplinary
Yuxuan Ling, Handong Ge, Jiawen Chen, Yuqi Zhang, Yunxia Duan, Minghui Liang, Yanjun Guo, Tai-Sing Wu, Yun-Liang Soo, Xiong Yin, Liming Ding, Leyu Wang
Summary: A general strategy for the fabrication of hydrophilic single atom catalysts (SACs) by cation-exchange approach is reported. The SACs are highly dispersible and stable in hydrophilic solvents, facilitating catalysis reactions in alcohols.
Article
Chemistry, Physical
Caixia Zhu, Yingluo He, Ryotaro Kushita, Xiaobo Peng, Qingxiang Ma, Guangbo Liu, Jinhu Wu, Guohui Yang, Noritatsu Tsubaki
Summary: The development of low-cost nickel-based catalysts for the direct and selective hydrogenation of 2-butyne-1,4-diol (BYD) to butane-1,4-diol (BAD) is an important target. A high-performance catalyst, NA-80E, was developed using a facile alcohol-treated strategy and achieved outstanding BAD selectivity and BYD conversion under mild conditions. The alcohol treatment inhibited the side reaction and increased BAD selectivity, offering new possibilities for designing efficient and selective hydrogenation catalysts.
Article
Chemistry, Applied
Sureeporn Saknaphawuth, Boontida Pongthawornsakun, Piyamit Toumsri, Laemthong Chuenchom, Joongjai Panpranot
Summary: This study compares the characteristics and catalytic properties of Pt catalysts supported on different carbon materials in the hydrogenation of furfural. The Pt/OMC-one-pot catalyst, prepared by a modified soft-template self-assembly method, exhibits the highest furfural conversion and furfuryl alcohol selectivity.
JOURNAL OF OLEO SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Ke Zheng, Yufeng Li, Bing Liu, Feng Jiang, Yuebing Xu, Xiaohao Liu
Summary: In this study, a single-atom catalyst consisting of monoatomic Rh embedded onto Ti-doped CeO2 support was developed for CO2 hydrogenation into ethanol. The catalyst exhibited high ethanol selectivity, record-breaking turnover frequency, and outstanding stability. The synergistic effects of Ti-doping and monoatomic Rh contributed to the excellent catalytic performance.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Nanoscience & Nanotechnology
Siyuan Zhu, Yufeng Chen, Vasishta Somayaji, Peter Novello, Dennis Chacko, Fanxing Li, Jie Liu
Summary: High entropy oxide (HEO) is a promising catalyst support for various chemical reactions due to its tunable composition-function properties. In this study, highly dispersed rhodium nanoparticles were successfully synthesized on HEO using a one-step glycine-nitrate-based combustion method. The resulting catalyst exhibited significantly higher selectivity and activity in CO2 hydrogenation compared to rhodium nanoparticle-based catalysts. The high CO selectivity was attributed to the presence of copper and zinc in the HEO support, which weakened the *CO binding strength and formed a strong metal-support interaction.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Xuelian Li, Huaigang Su, Chuanwei Zhnga, Yongfang Niu, Yanxing Qi
Summary: Mesoporous Ce-Mn based bimetallic catalysts were prepared using low-cost precursors under mild conditions. The catalysts prepared under specific conditions showed optimal performance with high specific surface area and minimum activation energy. The synergistic effect between Ce and Mn was confirmed to be essential for promoting the comprehensive performance of the catalysts.
Article
Green & Sustainable Science & Technology
Yunlong Yao, Zhiquan Yu, Chenyang Lu, Fanfei Sun, Yao Wang, Zhichao Sun, Yingya Liu, Anjie Wang
Summary: Thermal treatment and reduction were used to improve the activity of Cu-based catalysts, with the introduction of ZnO enhancing dispersion. The CuxC-Cu-ZnO catalyst exhibited high activity and stability in furfural hydrogenation reaction, with a furfuryl alcohol selectivity of 100% after a 70-hour run.
Article
Environmental Sciences
Ayesha Sani, Ali Murad, Dilawar Hassan, Ghulam Mustafa Channa, Ahmed El-Mallul, Dora Iliana Medina
Summary: In this study, green chemically synthesized and stabilized Co3O4 nanoparticles were used for catalytic conversion of isopropyl alcohol to acetone. The nanoparticles exhibited high photocatalytic conversion efficiency and recyclability. Additionally, they showed strong antibacterial activity and low cytotoxicity.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Environmental
Minghui Cui, Feilong Wang, Wenqi Zhao, Dai Zhang, Rongqing Liang, Qiongrong Ou, Shuyu Zhang
Summary: Green hydrogen is produced by electrolyzing water using renewable energy, thereby generating hydrogen with zero carbon emissions. Platinum-based catalysts are highly efficient, but limited by their high price and low availability. Researchers have synthesized a catalyst combining platinum single atoms and nanoparticles using nonthermal plasma technique, which exhibits excellent performance at high current density and a significantly lower loading compared to commercial catalysts. This technique offers a low-cost and efficient method to synthesize high-current hydrogen evolution reaction catalysts, promoting their industrial development.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Applied
Weiyin Wang, Lu Lin, Haifeng Qi, Wenxiu Cao, Zhi Li, Shaohua Chen, Xiaoxuan Zou, Tiehong Chen, Nanfang Tang, Weiyu Song, Aiqin Wang, Wenhao Luo
Summary: A highly efficient Rh@Al2O3@C single-atom catalyst (SAC) was developed for the hydrogenation of m-chloronitrobenzene, achieving excellent catalytic performance and a sustained selectivity of around 98% to m-chloroaniline. This was attributed to the atomic dispersion of metal and enhanced accessibility of acid function sites.
CHINESE JOURNAL OF CATALYSIS
(2021)
Article
Chemistry, Physical
Yuemin Lin, Renfeng Nie, Yuting Li, Xun Wu, Jiaqi Yu, Shaohua Xie, Yajing Shen, Shanjun Mao, Yuzhuo Chen, Dan Lu, Zongbi Bao, Qiwei Yang, Qilong Ren, Yiwen Yang, Fudong Liu, Long Qi, Wenyu Huang, Zhiguo Zhang
Summary: We report a novel non-precious metal catalyst consisting of single-atom cobalt for the selective reduction of functionalized nitroarenes to amines. The catalyst exhibits high catalytic activity, resistance to poisoning, and corrosion, showing great potential for applications in the chemical industry.
Article
Chemistry, Physical
Yang Lou, Yi Zhao, Hong Liu, Qingqing Gu, Bing Yang, Yujie Shi, Tingyi Yao, Bo Yang
Summary: This research demonstrates that 2D MoS2 edges confined single Pt atoms efficiently catalyze the conversion of biomass-derived crotonaldehyde to crotyl alcohol, with selectivity ranging from 90% to 100%. The unique HO-Mo-S-Pt-1-S-Mo-OH configuration of the Pt-1/MoS2 single-atom catalysts restricts the adsorption configuration of crotonaldehyde, leading to high selectivity in the reaction. The tactics of fabricating pocket-like active sites with metal single atoms and 2D nanosheet edges show potential for developing highly selective catalysts for biomass conversion reactions.
Article
Chemistry, Multidisciplinary
Ya Wang, Lili Li, Miao Shen, Rui Tang, Jing Zhou, Ling Han, Xiuqing Zhang, Linjuan Zhang, Guntae Kim, Jian-Qiang Wang
Summary: This paper proposes a simple one-step molten salt method for preparing MXene-supported platinum nanoalloy catalysts. By using molten salt as the reaction medium to dissolve transition metals and platinum ions at high temperatures, the oxidation of aluminum and reduction of platinum were successfully coupled, leading to the conversion of Ti3AlC2 into Pt-M@Ti(3)C(2)Tx catalyst with remarkable electrocatalytic activity.
Article
Chemistry, Multidisciplinary
Linmin Zhao, Xuetao Qin, Xirui Zhang, Xiangbin Cai, Fei Huang, Zhimin Jia, Jiangyong Diao, Dequan Xiao, Zheng Jiang, Ruifeng Lu, Ning Wang, Hongyang Liu, Ding Ma
Summary: Selective hydrogenation of alkynes to alkenes is crucial in the synthesis of fine chemicals. In this study, a Pd single-atom catalyst anchored to the shell of magnetic core-shell particles was used for semi-hydrogenation of phenylacetylene, achieving high selectivity and activity, as well as effective separation and recovery of the catalyst and substrate.
ADVANCED MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Songyu Li, Xiaoqing Chen, Zeyu Zhang, Xuhong Li, Wenjie Deng, Famin Liu, Yue Lu, Yongzhe Zhang
Summary: 2D-layered transition metal dichalcogenides (TMDCs) have been widely studied for nanoelectronics applications due to their atomically layered lattices. In this study, a photoinduced electrostatic modulation of WSe2 field-effect transistor with charge-trapping layers of hexagonal-BN (h-BN)/SiO2 was achieved, demonstrating a high on/off ratio. The research successfully prepared a p-n homojunction rectifier and a complementary metal-oxide-semiconductor inverter, showcasing the potential for wide applications in TMDC-based logic electronics.
ADVANCED ELECTRONIC MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Zelin Wang, Xiaoxing Ke, Manling Sui
Summary: This mini-review summarizes recent progress on revealing 3D structures of electrocatalysts using 3D electron tomography. It discusses the information that can be revealed at nanoscale and atomic scale, and explores the application of this technique in durability investigation and post-treatment of electrocatalysts.
FRONTIERS IN CHEMISTRY
(2022)
Review
Physics, Condensed Matter
Xiaomei Wu, Xiaoxing Ke, Manling Sui
Summary: This review summarizes recent studies on advanced transmission electron microscopy (TEM) characterizations of halide perovskites. It covers topics such as irradiation damage under conventional imaging conditions, low-dose TEM, atomic-resolution imaging, defects identification, chemical mapping, cryo-TEM, and in-situ TEM for degradation study. These characterizations help in understanding the structure-property relationship and degradation mechanism of halide perovskites, and aid in the design of more efficient and robust energy materials.
JOURNAL OF SEMICONDUCTORS
(2022)
Article
Materials Science, Coatings & Films
Yiling Huang, Xuemei Song, Chucheng Lin, Wei Zheng, Yi Zeng, Jian Huang
Summary: This study prepared YSZ and La-YSZ coatings using spray method and compared their performance under CMAS corrosion. The results showed that La-YSZ coatings exhibited better resistance to CMAS, which may be attributed to the smaller grain size and lower phase transformation rate in La-YSZ.
JOURNAL OF THERMAL SPRAY TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Gang Zhou, Shewei Xin, Hui Xing, Kai Zhang, Siyuan Zhang, Zhibo Liu, Jiahao Zhang, Jian Huang, Yi Yang, Hao Wang, Aijun Huang
Summary: Investigation on the tensile properties of Ti-6.5Al-2Sn-4Zr-4Mo-1W-0.2Si alloy with three different microstructures (lamellar, bimodal, and equiaxed) was conducted at both room temperature and 550 degrees C. The results indicate that an increase in the volume fraction of primary alpha phase leads to a decrease in yield and ultimate tensile strengths, while enhancing ductility at both temperatures. This can be attributed to the decrease in the beta transformed microstructure, which hinders dislocation slipping through high-density alpha/beta interfaces. Moreover, the lower yield and ultimate tensile strengths as well as the higher ductility at 550 degrees C can be attributed to the activation of multislipping systems at elevated temperatures.
ADVANCED ENGINEERING MATERIALS
(2023)
Article
Multidisciplinary Sciences
Libo Zhu, Jian Huang, Ge Meng, Tiantian Wu, Chang Chen, Han Tian, Yafeng Chen, Fantao Kong, Ziwei Chang, Xiangzhi Cui, Jianlin Shi
Summary: By investigating the mechanism of bimetallic phosphide catalyst for bifunctional hydrazine oxidation and hydrogen evolution reaction, the authors reveal the pathways of hydrazine oxidation and the recovery effect of N2H4 molecules on the catalyst. Substituting hydrazine oxidation for oxygen evolution significantly reduces energy consumption for hydrogen production, but the mechanism and electrochemical utilization rate of hydrazine oxidation remain unclear. A bimetallic and hetero-structured phosphide catalyst is developed to catalyze both reactions, and a new reaction path involving nitrogen-nitrogen single bond breakage is proposed and confirmed. The high electro-catalytic performance is due to the instant recovery of the catalyst's active site by hydrazine and the lowered energy barrier, enabling the constructed electrolyzer to achieve 500 mA cm(-2) hydrogen production at 0.498 V and a 93% enhanced hydrazine electrochemical utilization rate. This electrolyzer can be powered by a bimetallic phosphide anode-equipped direct hydrazine fuel cell, achieving self-powered hydrogen production at a rate of 19.6 mol h(-1) m(-2).
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Applied
Zhengfeng Zhang, Changdong Qin, Kuan Wang, Xiao Han, Jinhui Li, Manling Sui, Pengfei Yan
Summary: The cathode electrolyte interphase (CEI) layer is crucial for the electrochemical performance of lithium-ion batteries. By employing diverse characterization techniques, we systematically investigate the dynamic evolution of the CEI layer and its critical impact on the cycling performance of LiCoO2 cathode. We find that cycling voltage plays a key role in CEI formation and evolution, and a critical potential of 4.05 V is identified as the switching point between CEI deposition and decomposition.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Fanlin Zeng, Mengjie Chen, Hongbo Wang, Hexiang Peng, Bei Li, Jian Huang
Summary: In this work, first-principles calculations were performed to investigate the phase stability, mechanical properties, chemical bonding characteristics and slip properties of five Ti-Co binary compounds. The results showed that all the compounds were thermodynamically stable, with TiCo being the most mechanically stable. The anisotropy of Ti-Co compounds was analyzed, with Ti2Co showing the strongest anisotropy. The plastic deformation mechanism of Ti-Co compounds was understood by calculating the generalized stacking fault energy (GSFE) of different slip systems, explaining the anomalous ductility of TiCo and TiCo3.
Article
Materials Science, Multidisciplinary
Yuyuan Jiang, Yuyang Lu, Zhengfeng Zhang, Lige Chang, Jinhui Li, Xiao Han, Lin Gan, Yong Ni, Manling Sui, Pengfei Yan
Summary: This study reveals the failure mechanism of LiCoO2 cathode, indicating that misfit strain plays a dominant role in the surface layer exfoliation process. Highly strained LiCoO2 surface can initiate massive surface cracks, causing the LiCoO2 surface layer to break and exfoliate. Mechanical cracking coupled with chemical etching exacerbates the surface layer degradation, resulting in a weathering-like degradation on the LiCoO2 surface. This research highlights that the interfacial degradation of electrode materials is a complex physicochemical process.
MATERIALS RESEARCH LETTERS
(2023)
Article
Chemistry, Physical
Xulin Mu, Xiaojuan Hui, Mingming Wang, Kuan Wang, Yan Li, Yuefei Zhang, Manling Sui, Pengfei Yan
Summary: In this study, twin boundaries (TBs) were quantitatively estimated and characterized using advanced electron microscopy. It was further validated that TBs can initiate massive cracks during electrochemical cycling, leading to performance decay of LiNiO2. While adjusting synthesis conditions cannot avoid TB formation, it was found that a coprecipitation method can effectively eliminate TBs, resulting in improved cycling stability of LiNiO2. The coprecipitation method was also used to synthesize TB-free LiCoO2, demonstrating improved cycling stability.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Miao Xie, Zhuoran Lv, Yuan Wang, Wei Zhao, Xin Pang, Chendong Zhao, Yuqiang Fang, Jian Huang, Fuqiang Huang
Summary: A novel intercalation anode of 1T''' MoS2 is discovered for stable K+ storage, exhibiting excellent cyclability and capacity retention.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Guowei Wang, Manchen Zhang, Guikai Zhang, Zelin Wang, Xu Chen, Xiaoxing Ke, Changhao Wang, Shengqi Chu, Manling Sui
Summary: This study proposes an innovative approach to synthesize dual-atomic-site alloy (DASA) through two-step pyrolysis, avoiding the challenges of sintering and alloying on metal hosts. The approach is demonstrated by synthesizing Ir1Ni1@Co/N-C DASA, which exhibits outstanding bifunctional oxygen reduction/evolution reaction (ORR/OER) performance in both acidic and alkaline media. The density functional theory (DFT) calculations further reveal the regulation of adsorption-free energies of intermediates by Ir1 and Ni1 on Co.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Pengyu Meng, Jian Huang, Zhaohui Yang, Min Jiang, Yibo Wang, Wei Zhang, Jiao Zhang, Baode Sun, Chaopeng Fu
Summary: This study developed a low-cost, non-corrosive, and air-stable hydrated eutectic electrolyte that enables stable and reversible deposition of aluminum. When combined with vanadium oxide nanorods, the aluminum-ion battery showed high discharge capacity and good capacity retention. This work opens a new pathway for practical and sustainable aluminum-ion batteries.
NANO-MICRO LETTERS
(2023)
Article
Chemistry, Physical
Xulin Mu, Kai Huang, Genxiang Zhu, Yan Li, Conghui Liu, Xiaojuan Hui, Manling Sui, Pengfei Yan
Summary: Exploring the structure transformation mechanism of spent cathodes during regeneration is crucial for optimizing the processing protocol. Different operation histories result in spent cathode materials with different states of health (SOH), posing a challenge for simultaneous restoration. In this study, we investigated the effects of SOH on the direct regeneration protocol for spent LiCoO2 (LCO) cathodes. We identified lithium-deficiency and Al impurity as important factors impacting the regeneration quality of spent LCO, causing void defects, disordered lattice structures, and the diffusion of Al impurity during high temperature sintering. Based on our understanding of the regeneration process, we optimized the protocol to successfully restore spent LCO with different SOH.
Article
Chemistry, Physical
Zhengran Chen, Yanshuang Hao, Jian Huang, Zhiyong Zhou, Yaoguo Li, Ruihong Liang
Summary: A 0.6 mol% Mn-doped Pb(Sb0.5Nb0.5)0.02Zr0.51Ti0.47O3 piezoelectric ceramics with increased piezoelectric coefficient and preserved properties was reported. Its d33 value reached 436 pC N-1, and electro-strain of 0.16% was achieved at 2 kV mm-1 with a Curie temperature of 347 celcius. The excellent piezoelectric performance was attributed to the highly oriented domain structure and small domain size after high temperature poling.