Article
Chemistry, Multidisciplinary
Xiaobo Ren, Huixiang Wang, Liancheng Wang, Baoliang Lv
Summary: A water-induced stacking process was used to synthesize alpha-Fe2O3 hexagonal nanoplates with controlled exposed facets. The ratio of exposed facets can be adjusted by the dosage of added water. Stacked nanoplates showed enhanced catalytic performance and exhibited opposite activities in visible photocatalysis and CO oxidation.
Article
Chemistry, Multidisciplinary
Hongjing Wang, Hongyong Chen, Qiqi Mao, Kai Deng, Hongjie Yu, Xin Wang, You Xu, Ziqiang Wang, Liang Wang
Summary: In this study, a PdMn bimetallene with rich defects and highly curved structures is synthesized using a template-free solvothermal method. The PdMn bimetallene shows superior performance in the formate oxidation reaction and the hydrogen evolution reaction, making it a promising candidate for hydrogen production.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Eung-Dab Kim, Young-Sik Cho, Young-Duk Huh
Summary: In this study, Cu2O microcrystals with various shapes were successfully prepared by adjusting the reaction conditions. The morphology of Cu2O crystals changed with increasing reaction temperature, NaOH concentration, and glucose amount.
Article
Chemistry, Physical
Peng Zhang, Jing Xiong, Yuechang Wei, Yuanfeng Li, Yilin Zhang, Junjie Tang, Weiyu Song, Zhen Zhao, Jian Liu
Summary: The nanocatalysts of Ag nanoparticles coated on anatase TiO2-n% nanocrystals with co-exposed {1 0 1} and {0 0 1} facets show excellent catalytic activity during soot combustion, with the highest catalytic activity and lowest activation energy observed in Ag/TiO2-79% catalyst. The catalytic mechanism involves synergistic effects between coordinatively unsaturated Ti-5c and adjacent Ag atoms at the interface of TiO2-n% nanocrystal, boosting the key step of O-2 activation. This highlights an effective strategy for developing high-efficient catalysts through crystal facet engineering of metal oxides during oxidation reactions.
JOURNAL OF CATALYSIS
(2021)
Article
Chemistry, Physical
Yang Chen, Qiang Wan, Liru Cao, Zhe Gao, Jian Lin, Lin Li, Xiaoli Pan, Sen Lin, Xiaodong Wang, Tao Zhang
Summary: This study reveals the dependence of Pt single atoms' electronic structure on the facets of CeO2 and demonstrates the impact of such dependence on catalytic performance. By controlling the electron transfer patterns of Pt-O-Ce microstructures, the positively charged or metallic states of Pt single atoms can be achieved, resulting in enhanced complete oxidation of CO and activation of H2, respectively.
JOURNAL OF CATALYSIS
(2022)
Article
Chemistry, Inorganic & Nuclear
Preeti Oswal, Kritika Sood, Siddhant Singh, Aayushi Arora, Anurag Bahuguna, Suraj Purohit, Arun Kumar
Summary: Pd6P has been synthesized for the first time using a simple and straightforward method, and grafted onto graphene oxide to form a GO-Pd6P nanocomposite. The nanocomposite shows high activity in electrochemical hydrogen evolution reactions and maintains stable and efficient hydrogen production for up to 16 hours.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Multidisciplinary
Sanjeevan Rajagopal, Suresh Thangudu, Kuo Chu Hwang
Summary: Direct alcohol fuel cells have a promising future and require development of highly active electrocatalysts for alcohol oxidation. High-index facet nanomaterials show promise for successful alcohol oxidation, but their fabrication and exploration are rarely reported. We successfully synthesized a high-index facet {711} Au 12 tip nanostructure using a cationic surfactant and found that it exhibited significantly higher electrocatalytic activity and CO tolerance compared to low-index facet Au nanoparticles. These findings suggest that high-index facet Au nanomaterials are ideal electrode materials for alcohol electrooxidation in fuel cells.
Article
Chemistry, Multidisciplinary
Linfang Lu, Bing Wang, Di Wu, Shihui Zou, Baizeng Fang
Summary: By controlling the molar ratio of Pd precursor to Cu2O, a series of Pd-Cu nanocrystals with both porous and dendritic features were successfully synthesized, showing superior electrocatalytic activity towards formic acid oxidation. The outstanding performance is attributed to surface steps, defects, three-dimensional architecture, and electronic/strain effects between Cu and Pd.
Article
Chemistry, Physical
Ke Guo, Yang Meng, Ruonan Guo, Hongyou Guo, Shuqin Qiu, Dongping Fan, Dongdong Xu, Yafei Li
Summary: The performance of ultrathin PdP nanosheets with different crystal facets in the electrocatalytic ethanol oxidation reaction was studied. It was found that the {100} facet exhibited the highest mass activity and stability, demonstrating the significant influence of crystal facets on the reaction performance.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Wenbin Jiang, Shibin Wang, Jia Liu, Haiyang Zheng, Yu Gu, Wenwen Li, Huaijie Shi, Suiqin Li, Xing Zhong, Jianguo Wang
Summary: The study investigates the influence of lattice oxygen on beta-PbO2 during electrochemical ozone production, showing that all three oxygen atoms in ozone originate from lattice oxygen. The EOP reaction pathway on beta-PbO2 follows the lattice oxygen mechanism, with different reactivity observed on different crystal surfaces. This insight can be applied to other applications of metal oxide-based electrocatalysts.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Multidisciplinary
Yu-Rim Hong, Soumen Dutta, Sun Woo Jang, Odongo Francis Ngome Okello, Hyeonae Im, Si-Young Choi, Jeong Woo Han, In Su Lee
Summary: This study addresses the inefficient interfacial contact effect in Pt-catalyzed alkaline hydrogen evolution reaction (HER) by producing atomically flat two-dimensional Pt nanodendrites (2D-PtNDs) and realizing a maximized and firmly bound lateral heterointerface with NiFe-layered double hydroxide (LDH). This work demonstrates the importance of shape and facet of Pt in creating heterointerfaces that provide catalytic synergy for efficient hydrogen production.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Physical
Wei Guo, Binbin Guo, Huiling Chen, Cheng Liu, Ling Wu
Summary: In this study, uniform Pd nanocrystals with cube and octahedron geometries were synthesized and combined with ultrathin TiO2(B) nanosheets for the photocatalytic dechlorination of polychlorinated biphenyls. The CUB/TBs showed a 200% enhancement in efficiency compared to OCT/TBs, attributed to the higher surface charge density of CUB promoting the activation of C-Cl bonds. This research not only elucidates the effect of facet-engineering Pd nanocrystals on the photocatalytic dechlorination of polychlorinated biphenyls but also lays the foundation for superior photocatalysts for other advanced applications.
CATALYSIS SCIENCE & TECHNOLOGY
(2022)
Review
Chemistry, Multidisciplinary
Yiyang Li, Shik Chi Edman Tsang
Summary: Heterogeneous catalysis is crucial in chemical industries, energy conversion, and environmental technologies. The surface morphology and structure of solid catalysts significantly affect catalytic performances, particularly on metal oxides with diverse surface features. The effects of exposed facets are contentious, influencing surface energy, defect formation, electronic configurations, and charge migration in heterogeneous catalysis. Various relaxation processes generate different surface features, necessitating novel techniques to study facet effects accurately.
ACCOUNTS OF CHEMICAL RESEARCH
(2021)
Article
Chemistry, Physical
Huizhen Dai, Te Zhang, Houkang Pu, Kaiyu Dong, Yingying Wang, Yujia Deng
Summary: In this study, shaped PtPd alloy nanocrystals with high-index facet as well as low-index facet were successfully synthesized via square wave potential method. These nanocrystals exhibited great electrocatalytic performance for ethylene glycol oxidation reaction, attributed to their surface structure and alloying effect.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Ting Yu, Xin Li, Bin Chen, Yanxing Yang, Keng Xu, Yuan Liu, Wufei Gong, Cailei Yuan, Yong Yang
Summary: Crystal facet engineering and graphene modification are effective means to improve the gas sensing performance of metal oxide semiconductors. This study found that bare {112} facets of Co3O4 nanocrystals showed higher triethylamine sensing performance than {100} facets, and the performance of {112} facets was significantly improved after graphene modification. Further investigation revealed that {112} facets contained more active Co3+ species and chemically adsorbed oxygen species, which promoted the sensing reaction. Additionally, the strong electronic interaction between Co3O4 {112} crystal facets and graphene enhanced charge exchange efficiency.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Engineering, Environmental
Moyan Ge, Jiali Zhang, Zuoqi Gai, Renshui Fan, Songqing Hu, Guo Liu, Yong Cao, Xilong Du, Yi Shen
Summary: The authors synthesized high-performance magnetic Fe3O4@PS-ANTA-M2+ nanospheres for selectively immobilizing histidine-tagged proteins, demonstrating outstanding adsorption capacity and selectivity. Practical applications showed promising potential in isolating proteins from complex biological systems.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Electrochemistry
Jiali Zhang, Yi Shen
Summary: In this study, non-precious metallic nickel-copper electrocatalysts were synthesized for the oxidation of glycerol in alkaline electrolytes. The catalysts' structural features were characterized and their electrochemical activity and product selectivity were investigated, with the Cu1Ni1@ACF catalyst showing the highest selectivity of 97.4% for formic acid.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Chemistry, Physical
Muwei Ji, Xin Yang, Shengding Chang, Wenxing Chen, Jin Wang, Dongsheng He, Yao Hu, Qian Deng, You Sun, Bo Li, Jingyu Xi, Tomoaki Yamada, Jiatao Zhang, Hai Xiao, Caizhen Zhu, Jia Li, Yadong Li
Summary: Uniform RuO2 clusters with a size of approximately 2 nm were synthesized via electrochemical leaching, exhibiting ultrahigh OER activity in acidic conditions. Enhanced Jahn-Teller distortion in RuO2 clusters compared to its bulk counterpart was shown to improve the intrinsic OER activity, as supported by density function theory calculations.
Article
Energy & Fuels
Yongbin Liu, Lihong Yu, Le Liu, Jingyu Xi
Summary: Reducing the V/H ratio in the electrolyte can lead to higher efficiency and better cycle stability, especially suitable for a wide range of temperatures. Unlike previous studies that focused on increasing vanadium concentration to increase theoretical capacity density, a relatively low vanadium concentration is more suitable for vanadium flow batteries as it allows for safer, cheaper, and more stable operation, which is crucial for large-scale energy storage.
Article
Chemistry, Physical
Jiaye Yang, Chengli Chai, Cheng Jiang, Le Liu, Jingyu Xi
Summary: Designing low-cost and efficient non-noble-metal bifunctional electrocatalysts for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) is crucial for water splitting. In this study, a self-standing bifunctional electrode with MoS2-CoS2 heteronanosheet arrays on porous carbon microtube textile (MoS2-CoS2@PCMT) was developed for alkaline overall water splitting, showing lower overpotentials for HER and OER compared to Pt/C@PCMT and RuO2@PCMT at higher current density. The results highlight the importance of self-standing electrode structure and coupling of transition metal dichalcogenides for improving electrocatalyst performance in water splitting.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Multidisciplinary
Fuying Li, Kaijie Ma, Le Liu, Jingyu Xi, Xinping Qiu
Summary: This study introduced a TIRi method to characterize the onset potential distribution of catalytic electrodes, revealing poor uniformity and repeatability in Pt/C catalysts deposited on a porous carbon support with polymer binders (e.g., Nafion). Further electrochemical stability tests showed deteriorating HER onset potential from the edge to the middle of these catalytic electrodes, indicating poor durability.
Article
Chemistry, Physical
Xin Zhou, Jin-Lin Yang, Narui Li, Jiaye Yang, Jingyu Xi
Summary: In this work, porous and catalytic MoN nanosheets were fabricated on a conductive carbonized cotton cloth to serve as an interlayer for lithium-sulfur batteries (LSBs). The porous structure of MoN nanosheets provides abundant catalytic sites and accelerates the conversion kinetics of lithium-polysulfides (LiPSs). Additionally, the conductive carbonized cotton cloth can physically restrain LiPSs and act as a secondary current collector. The combination of MoN nanosheets and conductive carbonized cotton cloth synergistically enhances the trapping and conversion ability of polysulfides.
MATERIALS TODAY ENERGY
(2022)
Article
Chemistry, Physical
Chengli Chai, Jiaye Yang, Cheng Jiang, Le Liu, Jingyu Xi
Summary: This study presents the design of an economical and efficient catalyst that exhibits outstanding hydrogen evolution performance at ultrahigh current density and superior stability under harsh industrial conditions. The catalyst shows potential for application in large-scale industrial electrolysis of water/seawater.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Electrochemistry
Ting Wu, Lihong Yu, Jianhua Zhou, Jingyu Xi
Summary: This study addresses the issues faced by lithium-sulfur batteries and demonstrates their excellent performance with the use of carbonized cotton tissue as an interlayer, even at different temperatures.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Analytical
Zhangyan Li, Yang Xu, Chongqi Zhou, Jingyu Xi, Yonghong He, Tian Guan, Le Liu
Summary: This paper used an optical weak measurement (WM) method to measure the reaction surface area (RSA) that actually participated in the electrochemical reaction. Compared with the traditional methods, the WM method is more reliable and easy to operate experimentally, which can help researchers to consider the effect of surface area on electrocatalyst performance more rationally.
ANALYTICAL CHEMISTRY
(2023)
Article
Energy & Fuels
Jianhua Zhou, Ting Wu, Guolin Song, Jingyu Xi
Summary: In this study, hollow carbonized cotton cloth (CCC) was introduced as an interlayer, which effectively reduced charge transfer resistance and prevented the shuttle effect of polysulfides in lithium-sulfur batteries (LSBs). The CCC interlayer enabled high rate and cycling performances of LSBs in all climates. This novel interlayer exhibited ultralow price, light weight, easily scalable preparation, and all-climate good performance, making it highly promising for practical use in the future.
Article
Chemistry, Physical
Xiao Chen, Jingyu Xi, Kaijie Ma, Le Liu
Summary: In this study, an absorption spectra online monitoring method is used to detect the imbalances of the negative electrolyte. By calibrating the absorption spectra with the concentrations of V(II) and V(III), the real-time total vanadium concentration and state of charge can be obtained. It is found that vanadium is transported from the positive electrolyte to the negative electrolyte during charging and vice versa during discharging, and the amount of vanadium cross-transportation and its contribution to capacity loss are quantified.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Multidisciplinary
Rundong Zhao, Qiuyu Yan, Lihong Yu, Tian Yan, Xuya Zhu, Zongyan Zhao, Le Liu, Jingyu Xi
Summary: This study demonstrates the improvement of selective ammonia production capacity in the electrocatalytic nitrate reduction reaction (NO3RR) by modulating the electrodeposition site of Co. The designed Bi-Co corridor catalyst exhibits high Faraday efficiency, ammonia yield rate, and repeatability, and the trapping effect of NO2- by the Bi-Co corridor structure is verified.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
Jianhua Zhou, Ting Wu, Xin Zhou, Jingyu Xi
Summary: Lithium-sulfur batteries have shown great potential but still face challenges. The introduction of free-standing interlayers is a promising solution. This review summarizes the fabrication methods and modifications of free-standing interlayers, and discusses the outlook for high-performance interlayers.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Physical
Yongfang Zhou, Yi Shen, Xuanli Luo
Summary: The study focuses on establishing a rigorous assessment protocol for the electrochemical conversion of HMF, revealing the effects of electrolyte pH, support material properties, electrolyte impurities, and other factors on HMF conversion.
CATALYSIS SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Physical
Yifan Sun, Ye Lv, Wei Li, Jinli Zhang, Yan Fu
Summary: In this study, PtRu electrocatalysts were fabricated on carbon paper via cyclic electrodeposition for the electrocatalytic hydrogenation (ECH) of phenol. The Pt3Ru3 catalyst exhibited excellent activity and stability for the conversion of phenol to cyclohexanol at ambient temperature and various current densities. The in situ Raman spectroscopy and kinetic study revealed the hydrogenation mechanism of phenol over Pt3Ru3 in acidic electrolyte, providing an effective electrochemical strategy for the facile construction of durable electrode materials and efficient phenol hydrogenation.
JOURNAL OF CATALYSIS
(2024)
Article
Chemistry, Physical
Amir Shahzad, Khezina Rafiq, Muhammad Zeeshan Abid, Naseem Ahmad Khan, Syed Shoaib Ahmad Shah, Raed H. Althomali, Abdul Rauf, Ejaz Hussain
Summary: Photocatalytic hydrogen production through water splitting is an effective method for meeting future energy demands. In this study, researchers synthesized a 1 % Ag2S/Cu2S co-doped CdZnS catalyst and found that it can produce hydrogen at a higher rate. The co-doping of Ag2S and Cu2S in the CdZnS catalyst showed a synergistic effect, with Ag2S promoting oxidation reactions and Cu2S promoting reduction reactions.
JOURNAL OF CATALYSIS
(2024)
