Article
Chemistry, Physical
Shuqian Xie, Jinbing Shu, Hui Huang, Junhong Li, Ruirui Yue, Jingkun Xu
Summary: Modulating the surface and interface electronic structure of noble metals is a hot topic in electrocatalysis to improve electrocatalytic performance. In this study, a heterogeneous catalyst (PdCu/N-Ti3C2Tx) based on well-dispersed PdCu nanoalloy and N-doped Ti3C2Tx MXene support was prepared. The optimized composition of Pd1Cu1/N-Ti3C2Tx showed higher mass activity, specific activity, and intrinsic activity for ethanol oxidation reaction compared to other catalysts. The improved performance can be attributed to the modified surface electronic features of Pd and the metal-carrier effect between PdCu nanoalloy and N-Ti3C2Tx heterogeneous interface.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Inorganic & Nuclear
Luyu Zhu, Kai Song, Chenglin Yi
Summary: Bimetallic PdCu porous hollow nanoparticles (PHNs) with hierarchical nanostructures and well-alloyed compositions were synthesized through a one-pot aqueous synthetic route. These bimetallic PdCu PHNs exhibited multiple enhancement synergies in ethanol oxidation electrocatalysis, resulting in remarkable activity and stability. This study expedites the rational design and synthesis of high-hierarchy alloy electrocatalysts for fuel cell electrocatalysis.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Physical
Xiaoxiang Xu, Kun Lin, Fengrui Jia, Shuang Li, Zuhong He, Xiong Chen
Summary: In this study, PdCu ultrathin nanowires (UNWs) were synthesized through a facile aqueous approach and demonstrated to be highly active and stable electrocatalyst for ethanol oxidation reaction (EOR). The PdCu UNWs exhibited remarkable mass activity and good cycling stability, surpassing other catalysts and commercial Pd/C.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Qi-Qi Fu, Hui-Hui Li, Liang Xu, Yu-Da Li, Shu-Hong Yu
Summary: This study presents an in situ electrochemical post-treatment technique to rebuild a highly crystalline and stable multilayered Pd-skin structure on Pd47Cu53 nanotubes, which greatly enhances the catalytic stability of the nanotubes.
Article
Chemistry, Multidisciplinary
Mingyuan Pang, Min Yang, Jie Yan, Ben Zhang, Lei Zang, Aiping Fu, Peizhi Guo
Summary: Two-dimensional PdCu nanosheet assemblies (NSAs) were synthesized and used as electrocatalysts for direct ethanol fuel cells. PdCu NSA1 exhibited excellent catalytic activity and cyclic stability compared to PdCu NSA2, PdCu NSA3, and commercial Pd/C. Kinetics studies suggested that PdCu NSAs are more favorable at higher catalytic temperatures, higher ethanol concentrations, and low pH value environments.
Article
Chemistry, Physical
Yanxin Bai, Xiang Gong, Na Ye, Xiaoying Qi, Zhao Jiang, Tao Fang
Summary: By synthesizing bimetallic PdxCuy/Ni2P-C catalysts and investigating their electrochemical performance in alkaline media, it was found that Pd2Cu/Ni2P-C(1:1) exhibits high activity, good durability, and anti-CO poisoning ability. Analysis of impedance spectra and other test results suggest that the excellent performance of Pd2Cu/Ni2P-C(1:1) may be attributed to the electronic and strain effects among Pd, Cu, and Ni2P.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Nanoscience & Nanotechnology
Genlei Zhang, Yan Shi, Yan Fang, Dongjie Cao, Shiyu Guo, Qi Wang, Yazhong Chen, Peng Cui, Sheng Cheng
Summary: Crystal phase engineering can lead to the development of efficient and stable electrocatalysts using metal alloy nanocrystals. The incorporation of Cu in the alloy and the ordered bcc phase surface provide abundant active sites for reactions, while the exposed high-index facets on the surface act as highly catalytic sites.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
P. C. Ashly, Shreya Sarkar, Saurav Ch. Sarma, Komalpreet Kaur, Ujjal K. Gautam, Sebastian C. Peter
Summary: The catalytic properties of Pd1-xCux nanoparticles for electrocatalytic ethanol oxidation reaction are enhanced compared to commercial Pd/C catalyst, due to the introduced atomic ordering and compressive strain upon optimized phase distribution.
JOURNAL OF POWER SOURCES
(2021)
Review
Chemistry, Physical
Mohammad Gholinejad, Faezeh Khosravi, Mahmoud Afrasi, Jose M. Sansano, Carmen Najera
Summary: This review discusses the preparation and synthetic applications of bimetallic PdCu nanoparticles, highlighting their superior catalytic activity and selectivity compared to monometallic counterparts. Various preparation methods and support materials allow these nanomaterials to successfully perform a wide range of synthetic reactions and catalytic processes.
CATALYSIS SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Inorganic & Nuclear
Wenxia Xu, Xueke Wu, Yueyue Yuan, Yingnan Qin, Yanru Liu, Zuochao Wang, Dan Zhang, Hongdong Li, Jianping Lai, Lei Wang
Summary: A mixed crystalline catalyst with face-centered cubic and body-centered cubic phases was reported for the oxidation of ethanol in alkaline medium. The catalyst exhibited excellent ethanol oxidation performance and selectivity, attributed to the enhanced electron-donor activity of PdCu nanoparticles, synergistic effect between the bimetals, and phase interface brought by the mixed crystal phase.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Multidisciplinary
Weicong Wang, Xiatong Shi, Tianou He, Zhaorui Zhang, Xiaolong Yang, Yan-Jun Guo, Ben Chong, Wen-Min Zhang, Mingshang Jin
Summary: This study reports the use of amorphous PdCu nanomaterials as superior electrocatalysts for the ethanol oxidation reaction (EOR). The amorphization of PdCu catalysts improves catalytic efficiency and tailoring the size and shape further enhances activity. Both isotropic structure and one-dimensional shape also improve catalyst durability.
Article
Chemistry, Multidisciplinary
Jing Dong, Xueqin Mi, Tingting Sun, Yixin Zhang, Wenqian Jiang, Fulin Li, Jianfeng Chen, Lianbin Xu
Summary: This study reports a one-step and facile Pd2+-assisted soft-templating strategy for synthesizing ordered mesoporous Ni spheres with highly uniform and tunable diameters. The Pd nuclei obtained from the reduction of Pd2+ ions play a key role in improving the uniformity of the spheres and adjusting their diameter. The optimized OMNiS-100 sample exhibits superior electrocatalytic activity for the oxygen evolution reaction with low overpotential and remarkable durability.
Article
Chemistry, Multidisciplinary
Jialei Du, Daili Xiang, Jie Chen, Hehuan Xia, Leichen Wang, Fushan Liu, Yiwei Zhao, Yuanyuan Zhang, Caixia Xu, Bin Wang
Summary: Nanoporous PdCu (NP-PdCu) is a competent self-supported heterogeneous catalyst prepared from a PdCuAl alloy precursor, suitable for Suzuki-Miyaura cross-coupling with high efficiency and yields, and can be reused multiple times without obvious loss of catalytic performance.
CHEMICAL COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Yan Li, Shuang Song, Lin-Bin Zhang, Xiao-Xue Lian, Lin-Xi Shan, Qing-Jun Zhou
Summary: A hollow porous ZnO@ZnS core-shell structure was successfully synthesized hydrothermally, showing high gas-sensing performance with high selectivity, quick response-recovery, and stability to ethanol. The gas-sensing enhancement can be attributed to the Schottky barrier at the interface and the special hollow porous structure of ZnO@ZnS.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Ningkang Qian, Liang Ji, Xiao Li, Jingbo Huang, Junjie Li, Xingqiao Wu, Deren Yang, Hui Zhang
Summary: Combining core-shell structure and optimization of surface composition and structure enhances the electrocatalytic performances. Au@PtxSny core-shell nanoparticles with tunable composition and structure of Pt-Sn alloyed shells exhibit highest activity and stability compared to commercial Pt/C.
FRONTIERS IN CHEMISTRY
(2022)