4.6 Article

Pd-decorated three-dimensional nanoporous Au/Ni foam composite electrodes for H2O2 reduction

Journal

JOURNAL OF MATERIALS CHEMISTRY A
Volume 2, Issue 39, Pages 16474-16479

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ta02586e

Keywords

-

Funding

  1. National Natural Science Foundation of China [51271205, 50801070]
  2. The Fundamental Research Funds for the Central Universities [11lgpy08]
  3. Guangzhou Pearl Technology the Nova Special Project [2012J2200058]
  4. Research and Application of Key Technologies Oriented the Industrial Development [90035-3283309]
  5. Plan of Science and Technology Project by the DaYa Gulf district in Huizhou city [31000-4207387]
  6. Sun Yat-sen University
  7. Foundation for Distinguished Young Teachers in Higher Education of Guangdong, China [Yq2013006]
  8. SUNY Buffalo

Ask authors/readers for more resources

Nanoporous gold (NPG) films were fabricated on Ni foam substrates via a two-step procedure which involves electrodeposition of Au-Sn alloy films on the Ni foam surface, followed by selectively leaching the Sn component through a chemical dealloying process. Pd nanoparticles were then electrochemically deposited on the NPG/Ni foam electrode. The morphology of the Pd-decorated NPG/Ni foam composite electrode (Pd@NPG/Ni foam) was characterized by scanning electron microscopy (SEM). The catalytic activity of the Pd@NPG/Ni foam composite electrode toward H2O2 electroreduction in acid media was evaluated by means of linear scan voltammetry and chronoamperometry. The Pd@NPG/Ni foam composite electrode exhibited high activity and excellent stability for the H2O2 electroreduction, generating a current density of 178 mA cm(-2) at 0 V in a 0.5 M H2SO4 + 0.6 M H2O2 electrolyte, in comparison to 98 mA cm-2 on the Pd@Ni foam electrode and 36 mA cm(-2) on the NPG/Ni foam electrode. The developed three-dimensional (3D) hierarchical porous Pd@NPG/Ni foam can therefore be considered as a promising type of electrode for fuel cell applications.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.6
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

Article Public, Environmental & Occupational Health

Characteristics of 1738 Patients With Coronavirus Disease 2019 (COVID-19) in Wuhan, China

Xiao Ma, Yujing Gao, Lingling Di, Hanning Ma, Bin Mei, Junjian Zhang, Amei Wang, Ke Feng, Lishan Yang, Zhongwei Chen

Summary: This study analyzed the epidemiological and clinical information of 1738 diagnosed patients in Wuhan Dongxihu Fangcang Hospital. The findings revealed that most patients had a good prognosis and mental health.

DISASTER MEDICINE AND PUBLIC HEALTH PREPAREDNESS (2023)

Article Chemistry, Multidisciplinary

Non-3d metal modulated zinc imidazolate frameworks for CO2 cycloaddition in simulated flue gas under ambient condition

Yan-Tong Xu, Zi-Ming Ye, De-Xuan Liu, Xiao-Yun Tian, Dong-Dong Zhou, Chun-Ting He, Xiao-Ming Chen

Summary: Two new Zn(II) imidazolate frameworks incorporating MoO4 2- or WO4 2- units were reported, which can catalyze the cycloaddition of CO2 and epichlorohydrin at room temperature and atmospheric pressure, achieving high yields. The modulation mechanisms of the MoO4 2- unit in optimizing the electronic structure of Zn(II) center were revealed.

CHINESE CHEMICAL LETTERS (2023)

Article Chemistry, Multidisciplinary

Single Zinc Atom Aggregates: Synergetic Interaction to Boost Fast Polysulfide Conversion in Lithium-Sulfur Batteries

Xiaomin Zhang, Tingzhou Yang, Yongguang Zhang, Xingbo Wang, Jiayi Wang, Yebao Li, Aiping Yu, Xin Wang, Zhongwei Chen

Summary: This study reports nitrogen (N)-anchored single-atom catalysts (SACs) on highly ordered N-doped carbon nanotube arrays as the sulfur host for fast redox conversion in lithium-sulfur (Li-S) batteries. The synergistic enhancement effect induced by adjacent single atoms with interatomic distances <1 nm further accelerates the rapid multi-step reaction of sulfur at high sulfur loadings. The obtained Li-S batteries exhibit outstanding cycle stability and high capacity, contributing to the development of practically viable Li-S batteries.

ADVANCED MATERIALS (2023)

Article Chemistry, Multidisciplinary

A new catalyst based on disposed red mud for the efficient electrochemical reduction of nitrate-to-ammonia

Yan-Tong Xu, Ke-Cheng Ren, Zui-Miao Tao, Daniel Kobina Sam, Enlang Feng, Xiang Wang, Gengming Zhang, Junchi Wu, Yan Cao

Summary: In this study, red mud (RM) is used for the first time as an efficient electrochemical catalyst in the nitrate-to-ammonia reduction reaction (NARR) based on renewable energy. The results show that RM exhibits excellent performance in the NARR and when combined with photovoltaic technology. This promises a low-cost RM catalyst for sustainable ammonia production and recycling of red mud.

GREEN CHEMISTRY (2023)

Article Chemistry, Multidisciplinary

Incorporation of Heteroatomic Fe Activates Rapid Catalytic Behaviors of Co3O4 Hollow Nanoplates Toward Advanced Lithium-Sulfur Batteries

Jiabing Liu, Gaoran Li, Dan Luo, Jianhui Li, Xinyu Zhang, Qiang Li, Haipeng Li, Yongguang Zhang, Zhongwei Chen

Summary: In this study, a hierarchical and hollow nanoplate assembled by Fe-doped Co3O4 nanosheets (Fe-Co3O4 HHNPs) is designed as an advanced sulfur nanoreactor to overcome the challenges faced by lithium-sulfur batteries. The interlaced nanosheets establish a robust and porous network for fast charge transfer and efficient active site exposure. The heteroatomic Fe incorporation tailors the electronic structure, contributing to massive active sites that lower the energy barrier for sulfur conversions. The resulting sulfur adsorption and catalyzation endow the Li-S cells with high capacity retention and decent rate performance.

ADVANCED FUNCTIONAL MATERIALS (2023)

Review Chemistry, Multidisciplinary

Enabling Future Closed-Loop Recycling of Spent Lithium-Ion Batteries: Direct Cathode Regeneration

Tingzhou Yang, Dan Luo, Aiping Yu, Zhongwei Chen

Summary: The rapid spread of electric vehicles with lithium-ion batteries (LIBs) poses significant challenges and environmental risks for recyclers in managing waste and after scrap. Closed-loop recycling plays a crucial role in sustaining battery development and mitigating raw material shortages and supply chain risks. This article outlines and evaluates current methods for direct cathode regeneration in industrialized recycling, summarizes different regeneration methods for spent cathode materials, providing a new perspective for closed-loop recycling of LIBs. A proposed reference recycling route for retrofitting existing cathode production lines minimizes costs. In addition to promoting the industrialization of direct cathode recycling, the article also emphasizes the environmental, economic, and political benefits of battery recycling.

ADVANCED MATERIALS (2023)

Review Energy & Fuels

Heteroatom-Doped Carbon Supports with Enhanced Corrosion Resistance in Polymer Electrolyte Membrane Fuel Cells

Alisa Kozhushner, Qing Li, Lior Elbaz

Summary: Polymer Electrolyte Membrane Fuel Cells (PEMFCs) are hindered by the deficient durability of carbonaceous materials used to support platinum-based catalysts, resulting in electrochemical corrosion and performance loss. Many research groups have investigated heteroatom-doped carbons to improve corrosion resistance. This paper reviews recent studies on heteroatom-doped carbon supports, specifically N, B, and S dopants, and their effects on carbon corrosion in PEMFCs.

ENERGIES (2023)

Article Chemistry, Organic

Synthesis of 5-spirocycle camptothecin using ring-closing metathesis strategy

Xi Ke, Xianheng Wang, Yuan Liu, Linming Zuo, Yuhe Wang, Changkuo Zhao

Summary: In this study, a ring-closing metathesis (RCM) synthesis strategy was used to introduce a spirocycle functional group at the 5-position of CPT. The resulting 5-spirocycle CPT compound was obtained with a yield of 73%.

JOURNAL OF HETEROCYCLIC CHEMISTRY (2023)

Article Engineering, Chemical

Electrocatalytic Upgrade of Impure CO2 by In Situ-Reconstructed Cu Catalysts with Gas Exsolution Electrolyzers

Guobin Wen, Bohua Ren, Xinyu Yang, Yiming Chen, Lichao Tan, Xin Wang, Zhongwei Chen

Summary: In situ electrodeposition of copper on carbon fabric substrates improves the activity and selectivity of catalysts, leading to high conversion rates in a customized flow-through electrolyzer. This approach demonstrates promising prospects for industrial applications of CO2 electrolysis, even in impure CO2 environments.

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH (2023)

Article Chemistry, Multidisciplinary

Reconstructing 3d-Metal Electrocatalysts through Anionic Evolution in Zinc-Air Batteries

Ya-Ping Deng, Yi Jiang, Ruilin Liang, Ning Chen, Weiwei Chen, Zu-Wei Yin, Graham King, Dong Su, Xin Wang, Zhongwei Chen

Summary: This article investigates the impact of anionic contribution on the dynamic reconstruction and battery behavior of 3d-metal selenides in rechargeable Zn-air batteries. Through theoretical modeling, experimental techniques, and advanced electron microscopy, the study reveals that anionic chemistry plays a positive role in enhancing the battery performance, and proposes the concept of Se back-feeding to explain this phenomenon.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2023)

Article Chemistry, Multidisciplinary

Manipulating Redox Kinetics using p-n Heterojunction Biservice Matrix as both Cathode Sulfur Immobilizer and Anode Lithium Stabilizer for Practical Lithium-Sulfur Batteries

Xiaohang Du, Chenxu Wen, Yuhong Luo, Dan Luo, Tingzhou Yang, Lanlan Wu, Jingde Li, Guihua Liu, Zhongwei Chen

Summary: A p-n typed heterostructure consisting of NiO-MoS2@CNFs was designed as both cathode sulfur immobilizer and anode Li stabilizer for Li-S batteries. The heterostructure established a built-in electric field across the heterointerface to facilitate the positive charge transfer. The obtained Li-S full battery showed high areal capacity and stable cycling performance.

SMALL (2023)

Article Chemistry, Multidisciplinary

Oxytetracycline-derived carbon dots as a fluorescent switch in trace ferric ion sensing

Tao Chen, Yan-Tong Xu, Qing Guo, Xiaoli Chen, Qiucheng Su, Yan Cao

Summary: In this work, oxytetracycline-derived CDs (OCDs) with excellent photoluminescence characteristics and fluorescence switch performance for Fe(iii) detection were successfully fabricated. The OCDs showed a rapid detection time of 2 minutes and a low limit of detection (LOD) of 0.440 μM (24.6 ppb), making it one of the most sensitive CDs-based Fe(iii) fluorescent switch materials reported. The study also revealed the contributions of fluorophore concentration and affinity between fluorophore and quencher, providing a roadmap for the design of metal ion fluorescence switch materials.

NEW JOURNAL OF CHEMISTRY (2023)

Review Chemistry, Multidisciplinary

High-Energy-Density Solid-State Metal-Air Batteries: Progress, Challenges, and Perspectives

Tong Wang, Tingzhou Yang, Dan Luo, Michael Fowler, Aiping Yu, Zhongwei Chen

Summary: Metal-air batteries (MABs) have shown great potential as next-generation batteries due to their low cost, high safety, and environmental friendliness. Solid-state electrolytes (SSEs) can solve the challenges of volatile liquid electrolytes and protect the oxygen electrodes. However, solid-state MABs still face many challenges.

SMALL (2023)

Article Chemistry, Physical

Toward practical applications in proton exchange membrane fuel cells with gram-scale PGM-free catalysts

Jing Zhang, Pan Xu, Zhiyu Mao, Xuehui Gao, Emil Marquez, Ja-Yeon Choi, Zhongwei Chen

Summary: This paper highlights the importance of platinum as well as platinum group metal free catalyst in Proton Exchange Membrane Fuel Cells (PEMFC) and the increasing demand for such catalysts. The authors successfully synthesized highly active materials with secondary nitrogen doping and scaled up the synthesis process, achieving high power density.

JOURNAL OF POWER SOURCES (2023)

Article Nanoscience & Nanotechnology

Waxberry-Shaped Ordered Mesoporous P-TiO2-x Microspheres as High-Performance Cathodes for Lithium-Sulfur Batteries

Wenna Zhang, Yuanmei Xu, Jiabing Liu, Yebao Li, Eser Metin Akinoglu, Yaojie Zhu, Yongguang Zhang, Xin Wang, Zhongwei Chen

Summary: A type of ordered mesoporous P-TiO2-x microsphere with a waxberry-like shape is proposed as the sulfur host material for Li-S batteries, which improves the conductivity and cycling stability of the sulfur electrode.

SMALL SCIENCE (2023)

Article Chemistry, Physical

Enhanced moisture sorption through regulated MIL-101(Cr) synthesis and its integration onto heat exchangers

Mei Gui Vanessa Wee, Amutha Chinnappan, Runxin Shang, Poh Seng Lee, Seeram Ramakrishna

Summary: Cooling processes, from residences to industries, require a lot of energy and are essential. This study introduces MIL-101(Cr), a new desiccant, to heat exchangers for more efficient cooling. By improving the synthesis method and using a special binder, the MIL-101(Cr)-coated heat exchanger shows improved water uptake capacity and lower regeneration temperature.

JOURNAL OF MATERIALS CHEMISTRY A (2024)

Article Chemistry, Physical

Synthesis of completely solvent-free biomedical waterborne polyurethane with excellent mechanical property retention and satisfactory water absorption

Ao Zhen, Guanyu Zhang, Ao Wang, Feng Luo, Jiehua Li, Hong Tan, Zhen Li

Summary: In this study, a solvent-free microemulsion method was used to synthesize waterborne polyurethane (WPU) material with high retention of mechanical properties and satisfactory water absorption rates. The material showed excellent biocompatibility and has broad application potential in the field of biomedicine.

JOURNAL OF MATERIALS CHEMISTRY A (2024)

Review Chemistry, Physical

Recent progress in eutectic gallium indium (EGaIn): surface modification and applications

Wensong Ge, Rui Wang, Xiaoyang Zhu, Houchao Zhang, Luanfa Sun, Fei Wang, Hongke Li, Zhenghao Li, Xinyi Du, Huangyu Chen, Fan Zhang, Huifa Shi, Huiqiang Hu, Yongming Xi, Jiankang He, Liang Hu, Hongbo Lan

Summary: This paper reviews the research on the surface tension of eutectic gallium-indium alloys (EGaIn) in the field of stretchable electronics. It covers the principles of oxide layer formation, factors influencing surface tension, and methods for surface modification of liquid metals. The paper also discusses the applications of EGaIn surface modification in different fields and highlights the challenges still faced and the future outlook.

JOURNAL OF MATERIALS CHEMISTRY A (2024)

Review Chemistry, Physical

Nature-inspired sustainable solar evaporators for seawater desalination

Xiang Song, Lianghao Jia, Zhengen Wei, Tao Xiang, Shaobing Zhou

Summary: This paper provides an overview of the application, preparation, and role of biomimetic structures in solar evaporators with improved evaporation rate and lifetime.

JOURNAL OF MATERIALS CHEMISTRY A (2024)

Article Chemistry, Physical

Synergistic carrier and phonon transport advance Ag dynamically-doped n-type PbTe thermoelectrics via Mn alloying

Wei Yuan, Qian Deng, Dong Pan, Xiang An, Canyang Zhao, Wenjun Su, Zhengmin He, Qiang Sun, Ran Ang

Summary: Optimizing the performance of n-type PbTe thermoelectric materials is crucial for practical applications. Dynamic doping has emerged as an effective method to improve the performance of n-type PbTe by optimizing the carrier concentration. This study demonstrates the significance of Mn alloying in enhancing the performance of Ag-doped n-type PbTe by creating a hierarchical structure to suppress thermal transport and improving the Seebeck coefficient.

JOURNAL OF MATERIALS CHEMISTRY A (2024)

Review Chemistry, Physical

Recent advances of bifunctional electrocatalysts and electrolyzers for overall seawater splitting

Xiaoyan Wang, Meiqi Geng, Shengjun Sun, Qian Xiang, Shiyuan Dong, Kai Dong, Yongchao Yao, Yan Wang, Yingchun Yang, Yongsong Luo, Dongdong Zheng, Qian Liu, Jianming Hu, Qian Wu, Xuping Sun, Bo Tang

Summary: This review provides a comprehensive analysis of the progress and challenges in the field of bifunctional electrocatalysts and efficient electrolyzers for seawater splitting. It summarizes recent advancements and proposes future perspectives for highly efficient bifunctional electrocatalysts and electrolyzers.

JOURNAL OF MATERIALS CHEMISTRY A (2024)

Article Chemistry, Physical

Sequence-dependent self-assembly of supramolecular nanofibers in periodic dynamic block copolymers

Jason K. Phong, Christopher B. Cooper, Lukas Michalek, Yangju Lin, Yuya Nishio, Yuran Shi, Huaxin Gong, Julian A. Vigil, Jan Ilavsky, Ivan Kuzmenko, Zhenan Bao

Summary: Dynamic block copolymers (DBCPs) combine the phase separation of traditional block copolymers with the supramolecular self-assembly of periodic dynamic polymers, resulting in the spontaneous self-assembly of high aspect ratio nanofibers with well-ordered PEG and PDMS domains. DBCPs with a periodic block sequence exhibit superior properties compared to those with a random sequence, including delayed onset of terminal flow and higher ionic conductivity values.

JOURNAL OF MATERIALS CHEMISTRY A (2024)

Article Chemistry, Physical

Moisture-triggered proton conductivity switching in metal-organic frameworks: role of coordinating solvents

Hong Kyu Lee, Yasaswini Oruganti, Jonghyeon Lee, Seunghee Han, Jihan Kim, Dohyun Moon, Min Kim, Dae-Woon Lim, Hoi Ri Moon

Summary: This study reports the moisture-triggered proton-conductivity switching behavior in Zn5FDC MOFs induced by the presence and absence of coordinating solvents, which illustrates the significant role of coordinating solvents in conductivity variation.

JOURNAL OF MATERIALS CHEMISTRY A (2024)

Article Chemistry, Physical

Spiro[fluorene-9,9′-xanthene]-based hole shuttle materials for effective defect passivation in perovskite solar cells

Bommaramoni Yadagiri, Sanjay Sandhu, Ashok Kumar Kaliamurthy, Francis Kwaku Asiam, Jongdeok Park, Appiagyei Ewusi Mensah, Jae-Joon Lee

Summary: The molecular engineering of the interface modulator between the perovskite and hole transporting material is crucial for achieving satisfactory performance and stability of perovskite solar cells. In this study, cruciform-shaped dual functional organic materials were employed as surface passivation and hole transporting interfacial layers in perovskite solar cells. The use of these materials significantly improved the power conversion efficiency of the solar cells.

JOURNAL OF MATERIALS CHEMISTRY A (2024)

Article Chemistry, Physical

Crystalline phase transition in as-synthesized pure silica zeolite RTH containing tetra-alkyl phosphonium as organic structure directing agent

Joaquin Martinez-Ortigosa, Reisel Millan, Jorge Simancas, Manuel Hernandez-Rodriguez, J. Alejandro Vidal-Moya, Jose L. Jorda, Charlotte Martineau-Corcos, Vincent Sarou-Kanian, Mercedes Boronat, Teresa Blasco, Fernando Rey

Summary: This study investigates the synthesis of all-silica RTH zeolites using triisopropyl(methyl)phosphonium as the organic SDA. The results show the formation of two distinct crystalline phases under different synthesis conditions, with fluoride bonding to different silicon sites. It demonstrates the possibility of controlling the placement of fluoride in RTH zeolites through synthesis conditions.

JOURNAL OF MATERIALS CHEMISTRY A (2024)

Article Chemistry, Physical

Heterostructured MoP/CoMoP2 embedded in an N, P-doped carbon matrix as a highly efficient cooperative catalyst for pH-universal overall water splitting

Luyao Zheng, Cong Liu, Wenbiao Zhang, Boxu Gao, Tianlan Yan, Yahong Zhang, Xiaoming Cao, Qingsheng Gao, Yi Tang

Summary: This study successfully improves the efficiency and stability of water splitting by constructing a heterostructured electrocatalyst. The catalyst shows extraordinary performance and could offer an effective approach for the sustainable production of hydrogen.

JOURNAL OF MATERIALS CHEMISTRY A (2024)

Article Chemistry, Physical

Lanthanide contraction effect on the alkaline hydrogen evolution and oxidation reactions activity in platinum-rare earth nanoalloys

Carlos A. Campos-Roldan, Raphael Chattot, Frederic Pailloux, Andrea Zitolo, Jacques Roziere, Deborah J. Jones, Sara Cavaliere

Summary: This study systematically evaluated the hydrogen evolution/oxidation reactions on a series of Pt-rare earth nanoalloys in alkaline media, and identified the effect of the lanthanide contraction. The experimental results revealed that the chemical nature of the rare earth modulates the adsorption and mobility of oxygenated-species, enhancing the kinetics of the reactions.

JOURNAL OF MATERIALS CHEMISTRY A (2024)

Article Chemistry, Physical

Correlating the structural transformation and properties of ZIF-67 during pyrolysis, towards electrocatalytic oxygen evolution

Sara Frank, Mads Folkjaer, Mads L. N. Nielsen, Melissa J. Marks, Henrik S. Jeppesen, Marcel Ceccato, Simon J. L. Billinge, Jacopo Catalano, Nina Lock

Summary: This study investigates the thermal decomposition of ZIF-67 and its correlation with structural evolution and electrocatalytic performance. The researchers used in situ X-ray absorption spectroscopy and total scattering techniques to analyze the process. They found that disorder emerges at lower temperatures and that extending the pyrolysis process can result in materials with superior electrochemical properties.

JOURNAL OF MATERIALS CHEMISTRY A (2024)

Article Chemistry, Physical

SiO2 assisted Cu0-Cu+-NH2 composite interfaces for efficient CO2 electroreduction to C2+ products

Zi-Yang Zhang, Hao Tian, Han Jiao, Xin Wang, Lei Bian, Yuan Liu, Nithima Khaorapapong, Yusuke Yamauchi, Zhong-Li Wang

Summary: By constructing Cu-0-Cu+-NH2 composite interfaces with the assistance of SiO2, the electrochemical CO2 reduction reaction (CO2RR) achieves high Faraday efficiency and current density for C2+ production, improving the productivity of carbon cycle.

JOURNAL OF MATERIALS CHEMISTRY A (2024)

Article Chemistry, Physical

Electrochemically exfoliated covalent organic frameworks for improved photocatalytic hydrogen evolution

Ting Wang, Ruijuan Zhang, Pengda Zhai, Mingjie Li, Xinying Liu, Chaoxu Li

Summary: This study successfully exfoliated COFs using a simple electrochemical method, which resulted in improved photocatalytic performance for COFs and enriched the fabrication approach of COF exfoliation.

JOURNAL OF MATERIALS CHEMISTRY A (2024)