Article
Materials Science, Multidisciplinary
Shan Liu, Erhuan Zhang, Xiaodong Wan, Rongrong Pan, Yuemei Li, Xiuming Zhang, Mengyao Su, Jia Liu, Jiatao Zhang
Summary: In this study, a Ru-Co-Mn trimetallic alloy catalyst exhibited excellent electrocatalytic performance in alkaline media, providing a promising method for developing efficient bifunctional electrocatalysts.
SCIENCE CHINA-MATERIALS
(2022)
Article
Chemistry, Physical
Jianguo Yu, Zehui Yu, Yunling Jia, Ting Ran, Ming Song, Yanshuang Zhang, Qing Wang, Yuning Qu, Lili Wang
Summary: The performance of direct alcohol fuel cells is greatly affected by the phase and composition of the catalyst, necessitating the development of high-performance alcohol oxidation catalysts. In this study, PdCu core-shell nanoflowers were created for the first time using PVA preparation, resulting in a high electrochemically active surface area and a potent synergistic effect. The Cu@Pd22.3 catalyst exhibited 13 times higher catalytic performance than Pd/C in ethylene glycol oxidation reaction, offering an original method to improve the activity and endurance of polyol oxidation.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Chemistry, Multidisciplinary
Yi Zhang, Guoqiang Shu, Zhongtao Shang, Kui Ma, Lei Song, Chao Wang, Chang-An Zhou, Hairong Yue
Summary: PtPd nanoflower alloys uniformly anchored on carbon paper were synthesized by electrodeposition, and exhibited high methanol oxidation reaction (MOR) activity and tolerance. The Pt1Pd1-N NFs/CP showed a mass activity of 9.25 A mg(Pt+Pd) (-1) and a specific activity of 13.2 mA cm(ECSA) (-2) of MOR in the alkaline electrolyte, with 87.8% of the initial activity retained after 500 cycles. The complete oxidation of methanol without producing CO was achieved by the Pt1Pd1-N NFs/CP. The synergistic effect between Pt and Pd greatly improved the MOR electrocatalytic performance.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Peili Zhang, Tao Song, Dehua Zheng, Fusheng Li, Xiujuan Wu, Ke Fan, Licheng Sun
Summary: The NiFeBa material prepared by co-electrodeposition showed promising performance as an efficient catalyst for electrocatalytic water oxidation. The doped Ba ions played a crucial role in stabilizing the Ni3+ species and adjusting the catalytic mechanism, leading to an enhancement of catalytic efficiency and performance.
Article
Engineering, Electrical & Electronic
Saravanan Gengan, R. M. Gnanamuthu, Sanjay Sankaranarayanan, Venumbaka Maneesh Reddy, Bhanu Chandra Marepally, Ravi Kumar Biroju
Summary: In order to improve the selectivity, linear response and stability of non-enzyme glucose detection, we fabricated a Pt nanoflower (PtNF) anchored on rGO modified GCE (PtNF-rGO/GCE) using an environmentally friendly electrochemical method. The PtNF-rGO/GCE electrode exhibited excellent glucose electrooxidation in alkaline solution, with a linear range, sensitivity, and detection limit of 3.5 mM, 335.5 mu A mM-1 cm-1, and 53 mu M (S/N = 3) respectively. The PtNF-rGO/GCE electrode not only showed selectivity but also inhibited interfering molecules such as uric acid, dopamine, and ascorbic acid. This enables broad sensitivity, low-potential operation, stability, and rapid glucose current detection, expanding the applications of non-enzymatic glucose detectors.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Chemistry, Physical
Kaiyu Dong, Houkang Pu, Te Zhang, Huizhen Dai, Xihui Zhao, Luming Zhou, Kuankuan Wang, Yingying Wang, Yujia Deng
Summary: Designing and modulating the morphological structure of catalysts is important for improving their catalytic activity and stability. In this study, PtRu alloy nanodendrites with tunable components were successfully constructed, and they exhibited excellent electrocatalytic activity and stability in ethylene glycol oxidation reaction and methanol oxidation reaction.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Sijun Li, Hua Wang, Zemian Ma, Qinglan Xiao, Qin Gao, Yimin Jiang, Wei Shen, Rongxing He, Ming Li
Summary: The study suggests a transition metal dissolution-oxygen vacancy strategy, utilizing highly oxidized transition metal species dissolved in alkaline electrolyte, to construct a high-performance amorphous Co(OH)(2)/WOx (a-CoW) catalyst for the oxygen evolution reaction (OER). By regulating oxygen vacancies on the surface, the OER performance can be significantly improved.
Article
Chemistry, Physical
Sankar Sasidharan, Assa Aravindh Sasikala Devi, Rajan Jose, Takanori Tamaki, Anilkumar M. Gopinathan, Takeo Yamaguchi
Summary: The design of advanced catalysts for newer-generation fuel cells, such as direct formate fuel cells (DFFCs), is crucial for energy generation and environmental sustainability. Alloyed nanocrystals, such as PdSn, show enhanced performance for formate oxidation reactions, offering higher efficiency and stability compared to pure palladium catalysts.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Yonghyeon Kim, Young Wook Lee, Seunghoon Lee, Jintaek Gong, Hee-Seung Lee, Sang Woo Han
Summary: This study reported a new strategy for the synthesis of Pd-Pt-Ag ternary alloy HNSs through a self-templating approach. By simultaneously reducing multiple metal precursors in the presence of CTAC, the morphology of HNSs can be controlled, with the size and hollowness of HNSs adjustable.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Shuiping Luo, Long Zhang, Yujia Liao, Lanxi Li, Qi Yang, Xiaotong Wu, Xiaoyu Wu, Dongsheng He, Chunyong He, Wen Chen, Qilong Wu, Mingrui Li, Emiel J. M. Hensen, Zewei Quan
Summary: The study presents a method for preparing isolated Rh atoms and tensile-strained Pt-Rh single-atom alloy through atomic galvanic replacement and electrochemical dealloying, demonstrating high electrocatalytic performance in alkaline electrolytes with activity, selectivity, stability, and anti-poisoning ability.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Hengjia Wang, Lei Jiao, Lirong Zheng, Qie Fang, Ying Qin, Xin Luo, Xiaoqian Wei, Liuyong Hu, Wenling Gu, Jing Wen, Chengzhou Zhu
Summary: This study successfully synthesized 3D porous aerogels comprising IL/Pd50Bi1 SAAs with accelerated gelation kinetics, and demonstrated their high-efficiency electrocatalytic activity and stability for EOR. This work provides a promising method for developing efficient SAAs catalysts for fuel electrooxidation.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Electrochemistry
Francesc Valls Mascaro, Ian T. T. McCrum, Marc T. M. Koper, Marcel J. J. Rost
Summary: Platinum serves as a model catalyst in fuel cells due to its high activity, but its applicability is limited by degradation under operating conditions. Studying the oxidation and reduction of electrodes provides insights into the surface roughening and nucleation and growth of platinum nano-islands.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Xiaoyue Shi, Yiqi Ling, Youcong Li, Guanhua Li, Juan Li, Lingwei Wang, Fanhong Min, Rene Huebner, Shuai Yuan, Jinhua Zhan, Bin Cai
Summary: This study presents a novel approach for achieving complete glucose electrooxidation using a Cu-based metal-hydroxide-organic framework, which exhibits significantly improved electrocatalytic activity and enables the exclusive oxidation of glucose into formate and carbonate. A high-performance nonenzymatic glucose sensor was also developed. This work provides a new molecule-level strategy for designing catalytically active sites and has potential implications for the development of next-generation electrochemical devices.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Inorganic & Nuclear
Hafiza Tauseef Ashfaq, Muhammad Adeel Asghar, Talha Nisar, Veit Wagner, Muhammad Adil Mansoor, Ali Haider, Saqib Ali
Summary: In this study, binder-free electrodeposition was used to synthesize Co-, Ni-, and trimetallic NiCo-hexacyanocobaltates as electrocatalysts on fluorine-doped tin oxide (FTO) substrates. The synthesized materials were characterized using various analytical techniques including FTIR spectroscopy, XRD analysis, SEM, EDX analysis, and XPS. The catalytic performance of the synthesized materials for the oxidation of water was evaluated in 1 M KOH, and the results showed that the trimetallic NiCo-hexacyanocobaltate exhibited good electrocatalytic activity.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Junshan Li, Luming Li, Xinyu Ma, Jun Wang, Jun Zhao, Yu Zhang, Ren He, Yaoyue Yang, Andreu Cabot, Yongfa Zhu
Summary: This study presents a colloidal strategy to produce Ni-Fe alloy nanoparticles as efficient electrocatalysts for the electrooxidation of ethanol. The Ni-Fe alloy nanoparticles exhibit superior performance compared to other electrocatalysts, delivering a high current density and high Faradaic efficiency for the ethanol-to-acetate reaction. Spectroscopy techniques and density functional theory calculations were used to investigate the electrocatalytic process and understand the role of iron in enhancing electron transfer and lowering the energy barrier.
Article
Chemistry, Multidisciplinary
Jing Sun, Wenhui Zhou, Haibo Yang, Xue Zhen, Longfei Ma, Dirk Williams, Xudong Sun, Ming-Fei Lang
CHEMICAL COMMUNICATIONS
(2018)
Article
Chemistry, Physical
Jing Sun, Yonghuan Li, Yang Liu, Wenhui Zhou, Xue Zhen, Ming-Fei Lang
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2019)
Article
Chemistry, Analytical
Wenshuai Tian, Houyong Cao, Yu Zhang, Zhaolin Na, Yu Hui, Zhengmu Jin, Ming-Fei Lang, Yanzhao Li, Jing Sun
Summary: A novel fishbone-structured flexible Ag/AgCl quasi-reference electrode (Fishbone-Ag/AgCl qRE) was developed, which showed improved stability and long-term reliability compared to conventional glass Ag/AgCl RE. The conductivity and diameter of the nanowires in the fishbone structure had significant influences on electrochemical properties.
ANALYTICAL CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Jing Sun, Qingxiang Wang, Gang Luo, Weichen Meng, Meng Cao, Yanzhao Li, Michael D. Masterman-Smith, Haibo Yang, Xudong Sun, Ming-Fei Lang
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2020)
Article
Chemistry, Multidisciplinary
Xuxin Zhang, Yanzhao Li, Hanshu Fang, Hongquan Wei, Ying Mu, Ming-Fei Lang, Jing Sun