Article
Chemistry, Physical
Yalong Liao, Yiyang Wang, Yu Zhang
Summary: In this study, a Pd-Ni bimetallic catalyst supported on a composite carrier of gamma Al2O3 and SiO2 was successfully prepared using chemical precipitation methodology enhanced with an ultrasonic wave. The catalyst's performance was characterized, and the results showed that it had a uniform distribution at nanoscale and exhibited excellent dechlorination property.
Article
Chemistry, Applied
Shuai Yang, Yuli Chen, Shuaijian Huang, Lu Deng, Yuanyuan Wu, Xiu Zheng, Shakhzodjon Omonov, Minfeng Zeng
Summary: Nitrogen-doped mesoporous carbon-supported Pd (Pd @ N-C) catalysts were prepared by pyrolyzing gelatin/templates/PdCl2 hydrogels under N-2 atmosphere at 800 degrees C. The catalyst showed excellent activities for aqueous Heck coupling reactions of aromatic iodides and butyl acrylates and can be recycled for at least eight times with yield still higher than 80%. This work might facilitate a versatile platform for green and functional utilization of nature-rich biopolymer of gelatin.
APPLIED ORGANOMETALLIC CHEMISTRY
(2021)
Article
Chemistry, Physical
Junjing Li, Shumin Ma, Ziyan Qi, Jing Ding, Menghua Yin, Bin Zhao, Zhaohui Zhang, Yu Wang, Hongwei Zhang, Liang Wang, Dionysios D. Dionysiou
Summary: A new efficient Pd/NiFe-MOF/foam-Ni composite electrode was developed to improve the particle dispersion and catalytic activity of the palladium electrode. The composite electrode showed good resistance to sulfites and had a high electrocatalytic activity in the presence of various ions in wastewater. The introduction of nickel-iron bimetallic organic framework (NiFe-MOF) improved the dispersion and electrochemical active surface area (ECSA) of Pd.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Engineering, Environmental
Krzysztof Kusmierek, Wojciech Kicinski, Malgorzata Norek, Marek Polanski, Boguslaw Budner
Summary: Heteroatom-doped carbon gels were studied for their efficiency in oxidative and adsorptive degradation/removal of phenolic compounds. It was found that the co-doping of iron and nitrogen in carbon materials enhances catalytic properties and adsorption capacity, leading to more efficient degradation of organic pollutants.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Nanoscience & Nanotechnology
Tao Hu, Tingting Liu, Caiyun Xu, Mingxi Liu, Shenghu Zhou
Summary: This study utilized ditopic bis-terpyridine-containing metallopolymers as templates to synthesize metal nanoparticle-encapsulated nanoreactors for the first time. The prepared Pd NP-encapsulated silica nanotubes exhibited enhanced catalytic performance and stability for hydrodechlorinations of various chlorophenols.
ACS APPLIED NANO MATERIALS
(2021)
Article
Chemistry, Physical
Zimo Lou, Chaochao Yu, Xiaofei Wen, Yinghua Xu, Jianming Yu, Xinhua Xu
Summary: In this study, a Pd/Co-MOF nanosheets/Ni foam electrode was developed for electrocatalytic hydrodechlorination, achieving high activity and stability by optimizing the electrode interface and electronic states. This electrode shows great potential for electroreductive remediation of organic halides.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Biochemistry & Molecular Biology
Ekaterina S. Lokteva, Vera V. Shishova, Nikolay N. Tolkachev, Andrey N. Kharlanov, Konstantin I. Maslakov, Alexey O. Kamaev, Igor Yu. Kaplin, Irina N. Savina, Elena V. Golubina
Summary: By utilizing a mesoporous support based on silica and zirconia, monometallic and bimetallic catalysts were prepared and tested in the hydrodechlorination of 4-chlorophenol in aqueous solution. It was found that the bimetallic FePd/ZS catalyst exhibited excellent activity and stability, while the activation of Pd/ZS by aqueous phenol solution was identified through DRIFT spectroscopy analysis.
Article
Engineering, Environmental
Juntao Tang, Kenan Liu, Xiaoying Li, Mengying Fu, Weiting Yu, Lixian Jiang, Jiexu Ye, Shuang Song
Summary: In this study, a Fe-doped NiO nanoarray interlayer-modified Pd/Ni foam (Pd/Fe-NiO/NF) was synthesized as an efficient cathode catalyst for electrocatalytic hydrodechlorination (ECH) of 2,4-dichlorophenoxyacetic acid (2,4-D). The Fe-NiO nanoarray on the nickel foam increased the electrochemically active surface area of the electrode and improved the dispersion of catalytically active Pd nanoparticles (Pd NPs). Introducing the Fe-NiO interlayer facilitated water ionization and atomic H* generation, providing more atomic H* for the ECH process. Compared to the conventional Pd/NF electrode, the Pd/Fe-NiO/NF showed enhanced dechlorination efficiency and reduced Pd requirement, with excellent reusability and stability.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Juan Miao, Jingmin Wang, Zhen Lv, Xiaoying Feng, Ning Zhang, Xinquan Zhou, Hang Xu, Xuefeng Wei, Shuge Peng
Summary: A nitrogen-doped carbon-anchored single atom Pd (SA-Pd/NC) catalyst was prepared and demonstrated to have both electrocatalytic hydrodechlorination (ECH) activity and in situ heterogeneous electroFenton (hetero-EF) activity for the degradation of 2,4-dichlorophenol (2,4-DCP).
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Lei Tian, Ruijie Cheng, Linyu Li, Lizhi Tan, Guangyan Xiang, Jun Xiong
Summary: Catalytic hydrodechlorination (HDC) is an attractive method for treating wastewater by converting chlorophenols (CPs) into cyclohexanone. The HDC performance of Pd catalyst can be improved by modifying it with La, resulting in excellent degradation efficiency, high selectivity, and catalytic stability.
REACTION KINETICS MECHANISMS AND CATALYSIS
(2022)
Article
Chemistry, Applied
Chaozhong Li, Weiyue Zhao, Xueyi Lu, Zhangsen Chen, Bing Han, Xiaorong Zhang, Jiaxiang Chen, Yijia Shao, Junlang Huo, Yuexiang Zhu, Yonghong Deng, Shuhui Sun, Shijun Liao
Summary: We report a high-performance catalyst consisting of ordered PtCoNi ternary nanoparticles anchored on N, Co, and Ni co-doped dodecahedral mesoporous carbon (DMC). The catalyst exhibits enhanced electrocatalytic activity towards oxygen reduction reaction due to the formation of PtCoNi intermetallic compounds and the dual active centers of Co-N and Ni-N coordination. The optimized sample Pt3Co0.7Ni0.3/DMC demonstrates excellent performance with mass activity and specific activity 7.33 and 6.19 times higher than commercial Pt/C, respectively. This study provides critical insights into constructing efficient catalysts using a ternary intermetallic strategy and synergetic effect between active components and support.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Engineering, Environmental
Minghong Huang, Shenghua Zhou, Dong-Dong Ma, Wenbo Wei, Qi-Long Zhu, Zhenguo Huang
Summary: In this study, we report excellent bifunctional catalysts for the hydrogen and oxygen evolution reactions (HER and OER) by entrapping heterojunctions between carbide and transition metal nanoparticles (NPs) in porous nitrogen-doped carbon nanotubes (NCNTs). The dual-phase MoC and Fe NPs in NCNTs exhibited commendable bifunctional activities with small overpotentials for the HER and OER. The combination of Fe NPs generated synergistic heterointerfaces and improved the OER activity of MoC.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Tianyi Wu, Yinjie Zuo, Huan Chen, Zhaoyi Xu, Shourong Zheng
Summary: The Pd catalysts supported on different carbon materials were prepared and used for the electrocatalytic hydrodechlorination of 2,4-dichlorophenol. By modulating the reduction temperature, the electronic properties of Pd particles were tuned, leading to improved activity. The Pd/NCMK3 catalyst reduced at 200 degrees C exhibited the highest catalytic activity and stability.
APPLIED CATALYSIS A-GENERAL
(2023)
Article
Chemistry, Physical
Dong In Jeong, Hyung Wook Choi, Seongwon Woo, Jung Hyeon Yoo, Mohit Kumar, Young Hyun Song, Byungkwon Lim, Bon Keup Koo, Bong Kyun Kang, Dae Ho Yoon
Summary: The study synthesized a new hybrid material, CoFe@N-C/MNGF, as a bi-functional electrocatalyst to replace noble-metal catalysts, demonstrating excellent performance in oxygen reduction and oxygen evolution reactions, providing a potentially cost-efficient alternative to traditional catalysts.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Mingxuan Fu, Guyang Ning, Jiaxian Liu, Qi Zhang, Yuena Sun, Xinyu Fan, Haiyang Wang, Haijun Lu, Yufan Zhang, Huan Wang
Summary: The study focused on developing high-activity and durable dual-functional electrocatalysts for hydrogen and oxygen evolution reactions. By preparing core-shell structured nanocubes, the catalyst showed enhanced catalytic activity and stability.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Multidisciplinary
Juan Yang, Dan Xu, Ruilin Hou, Junwei Lang, Zhaoli Wang, Zhengping Dong, Jiantai Ma
CHINESE CHEMICAL LETTERS
(2020)
Article
Nanoscience & Nanotechnology
Yangyang Zhu, Wei David Wang, Xun Sun, Mengying Fan, Xiwei Hu, Zhengping Dong
ACS APPLIED MATERIALS & INTERFACES
(2020)
Article
Engineering, Chemical
Qian Zhu, Xun Sun, Hong Zhao, Dan Xu, Zhengping Dong
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2020)
Article
Chemistry, Physical
Dan Xu, Ruirui Liu, Jianfeng Li, Huacheng Zhao, Jiantai Ma, Zhengping Dong
Summary: Atomically dispersed Co catalysts with Co-N-4 active sites were successfully prepared in this study, facilitating transfer hydrogenation between nitroarenes and saturated N-heterocycles in aqueous solution. These catalysts exhibit higher TOF values compared to nanoparticle catalysts, demonstrating excellent catalytic performance.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Physical
Jingjing Li, Wen-Yan Zan, Hongxing Kang, Zhengping Dong, Xiaoming Zhang, Yixiong Lin, Yue-Wen Mu, Fengwei Zhang, Xian-Ming Zhang, Jing Gu
Summary: In this study, a nitrogen-rich graphene-like carbon catalyst with large surface area was fabricated via facile pyrolysis, and it was found that the C atoms next to the graphitic-N species serve as the main active species for CO2 electro-reduction reaction. This metal-free electrocatalyst achieved excellent selectivity and CO current density, comparable to state-of-the-art metal-based catalysts.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Physical
Qiang Song, Dan Xu, Wei David Wang, Jian Fang, Xun Sun, Feng Li, Boyang Li, Jinfang Kou, Hanghang Zhu, Zhengping Dong
Summary: Combining the advantages of homogeneous and heterogeneous catalysis, researchers have developed a highly dispersed Ru@HOF catalyst that can be easily recycled. The catalyst shows excellent performance in selectively catalytic hydrogenation of N-heteroarene compounds in aqueous solution.
JOURNAL OF CATALYSIS
(2022)
Article
Chemistry, Physical
Hong Zhao, Jian Fang, Dan Xu, Jianfeng Li, Boyang Li, Huacheng Zhao, Zhengping Dong
Summary: This study successfully prepared atomically dispersed Fe-N@HCS-T single-atom catalysts through a multistep protection strategy, demonstrating excellent activity, selectivity, stability, and recyclability. Factors such as pre-separation, anchoring effect, and support structure play crucial roles in achieving atomic dispersion.
CATALYSIS SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Environmental
Jinfang Kou, Jian Fang, Jianfeng Li, Huacheng Zhao, Mengmeng Gao, Gong Zeng, Wei David Wang, Fengwei Zhang, Jiantai Ma, Zhengping Dong
Summary: In this study, a series of covalent organic frameworks (COFs)-anchored single-site Pt catalysts were prepared for efficient alkene hydrosilylation. The catalyst showed excellent activity and selectivity towards alkenes under solvent-free conditions, and maintained high catalytic stability during recycling experiments.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Fengwei Zhang, Peihao Liu, Jingjing Li, Hefang Guo, Han Zhang, Zehui Zhang, Zhengping Dong
Summary: Designing and synthesizing highly efficient non-noble metal-based catalysts with uniform active sites is important for understanding catalytic reaction mechanisms. In this study, a series of N-doped graphene-like carbon intercalated Co-based single/dual-atom catalysts were prepared, which exhibited atomically dispersed cobalt single atom active sites. The catalyst showed excellent activity and selectivity for oxidative esterification of benzyl alcohol and other alcohols, and displayed good structural stability and recycling durability.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Jinhua Liang, Lan Wu, Zhenhua Li, Yang Liu, Nana Ding, Zhengping Dong
Summary: In this article, a novel core-shell catalyst, Pd@UiO-66-NH2@mSiO(2), was designed and demonstrated to have stable structure and high catalytic performance. The catalyst showed excellent core-shell structure, preventing aggregation and leaching of Pd nanoparticles during the reaction process. Additionally, the catalyst exhibited high efficiency, selectivity, and stability in the series reaction of amino compounds and aldehydes.
Article
Chemistry, Inorganic & Nuclear
Cheng Zhang, Tianhang Huang, Jinhua Liang, Hongzhang Cao, Yanhui Xu, Weisheng Liu, Zhengping Dong
Summary: In this study, a mesoporous CeO2-supported Au nanoparticles catalyst was constructed using a covalent organic framework (COF) material and demonstrated excellent catalytic performance in the direct oxidative esterification of benzaldehydes and benzyl alcohols. The obtained catalyst achieved the synthesis of high-value-added aromatic esters under mild and green reaction conditions. Furthermore, the catalyst was recyclable.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Multidisciplinary
Lan Wu, Yang Liu, Zhenhua Li, Jinhua Liang, Lei Geng, Li Chen, Zhengping Dong
Summary: This article presents the synthesis of a supported nano-catalyst, FeA-NC, with excellent mesoporous structure and evenly distributed iron. The catalyst support contains abundant nitrogen atoms, providing sufficient anchoring points for iron and forming Fe-Nx groups, thus enhancing the catalytic activity. Additionally, the porous structure of FeA-NC improves the mass transfer of reactants and enhances reaction efficiency.
Article
Chemistry, Physical
Jianfeng Li, Wenli Suo, Yuena Huang, Minglin Chen, Haowen Ma, Chuang Liu, Huan Zhang, Kun Liang, Zhengping Dong
Summary: In this study, high-surface-area mesoporous α-Al2O3 supported PdCu bimetallic nanoparticles were successfully prepared by using a porous organic framework as the template. The obtained catalyst exhibited high selectivity and catalytic activity in the selective hydrogenation reaction, and maintained its catalytic activity after multiple cycles.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Jinjuan Zhao, Junhao Shu, Jiaxiao Wang, Honglei Yang, Zhengping Dong, Shuwen Li
Summary: The electrocatalytic performance of a Pd nanocomposite modified with ceria and d-4-amino-phenylalanine functionalized graphene nanosheets was investigated. The modified material exhibited high electrocatalytic activity, fast kinetics, and excellent antipoisoning ability for the ethanol oxidation reaction in alkaline electrolytes. The enhanced performance can be attributed to the introduction of oxygen vacancies and functional groups during the modification process.
Article
Chemistry, Multidisciplinary
Xiwei Hu, Xun Sun, Qiang Song, Yangyang Zhu, Yu Long, Zhengping Dong