Search results for: Lipeng Zhang

Items from 1 to 20 out of 84 results

article

Rational Regulation of the Defect Density in Platinum Nanocrystals for Highly Efficient Hydrogen Evolution Reaction

Huimin Zhang, Kai Li, Xiaoyan Guo, Lipeng Zhang, more

Small > 20 > 16 > n/a - n/a

Constructing structural defects is a promising way to enhance the catalytic activity toward the hydrogen evolution reaction (HER). However, the relationship between defect density and HER activity has rarely been discussed. In this study, a series of Pt/WO_x nanocrystals are fabricated with controlled morphologies and structural defect densities using a facile one‐step wet chemical method. Remarkably,...

article

Intrinsic Descriptor Guided Noble Metal Cathode Design for Li‐CO₂ Battery

Chang Guo, Fuli Zhang, Xiao Han, Lipeng Zhang, more

Advanced Materials > 35 > 33 > n/a - n/a

To date, the effect of noble metal (NM) electronic structures on CO₂ reaction activity remains unknown, and explicit screening criteria are still lacking for designing highly efficient catalysts in CO₂‐breathing batteries. Herein, by preferentially considering the decomposition of key intermediate Li₂CO₃, an intrinsic descriptor constituted of the

d_{x^{2} - y^{2}}

orbital states...

article

Direct Separation of UO₂²⁺ by Coordination Sieve Effect via Spherical Coordination Traps

Shuyu Dong, Yaxiong Zhan, Yongming Xia, Qingyun Zhang, more

Small > 19 > 26 > n/a - n/a

Molecule sieve effect (MSE) can enable direct separation of target, thus overcoming two major scientific and industrial separation problems in traditional separation, coadsorption, and desorption. Inspired by this, herein, the concept of coordination sieve effect (CSE) for direct separation of UO₂²⁺, different from the previously established two‐step separation method, adsorption plus desorption is...

article

The Influences of DMF Content in Composite Polymer Electrolytes on Li⁺‐Conductivity and Interfacial Stability with Li‐Metal

Jianxun Zhu, Shuang He, Huayang Tian, Yiming Hu, more

Advanced Functional Materials > 33 > 25 > n/a - n/a

Trace N, N‐dimethylformamide(DMF) containing composite polymer electrolytes (CPEs) has attracted much attention owing to the dramatically increased Li⁺‐conductivity. But the amount of DMF is critical and needs to be clarified for the interfacial stability, since DMF is easily reduced by Li‐metal. Herein, the influences of DMF in poly(ethylene oxide) (PEO) and poly(vinylidene fluoride) (PVDF) based...

article

Initiating Fluorine Chemistry in Polycyclic Aromatic Hydrocarbon‐Derived Carbon for New Cluster‐Mode Na Storage with Superhigh Capacity

Yuan Shao, Yahui Cui, Changda Wang, Qi Yang, more

Small > 19 > 22 > n/a - n/a

Carbon materials are widely accepted as promising candidates for sodium‐ion batteries (SIBs) anodes due to their chemical stability and conductivity, while the capacity is still unsatisfactory. Here, this work reports the superhigh capacity Na storage through initiating fluorine chemistry (CF bonds) in carbon synthesized by the dehydrogenation and fluorination of polycyclic aromatic hydrocarbon such...

article

Frontispiece: One‐Step Approach for Constructing High‐Density Single‐Atom Catalysts toward Overall Water Splitting at Industrial Current Densities

Dong Cao, Zhirong Zhang, Yahui Cui, Runhao Zhang, more

Angewandte Chemie International Edition > 62 > 9 > n/a - n/a

Single‐Atom Catalysts. A one‐step approach for constructing single‐atom catalysts for overall water splitting at industrial current densities is reported by Jie Zeng, Daojian Cheng et al. in their Research Article (e202214259).

article

One‐Step Approach for Constructing High‐Density Single‐Atom Catalysts toward Overall Water Splitting at Industrial Current Densities

Dong Cao, Zhirong Zhang, Yahui Cui, Runhao Zhang, more

Angewandte Chemie International Edition > 62 > 9 > n/a - n/a

The construction of highly active, durable, and cost‐effective catalysts is urgently needed for green hydrogen production. Herein, catalysts consisting of high‐density Pt (24 atoms nm⁻²) and Ir (32 atoms nm⁻²) single atoms anchored on Co(OH)₂ were constructed by a facile one‐step approach. Remarkably, Pt₁/Co(OH)₂ and Ir₁/Co(OH)₂ only required 4 and 178 mV at 10 mA cm⁻² for hydrogen evolution reaction...

article

Frontispiz: One‐Step Approach for Constructing High‐Density Single‐Atom Catalysts toward Overall Water Splitting at Industrial Current Densities

Dong Cao, Zhirong Zhang, Yahui Cui, Runhao Zhang, more

Angewandte Chemie > 135 > 9 > n/a - n/a

article

One‐Step Approach for Constructing High‐Density Single‐Atom Catalysts toward Overall Water Splitting at Industrial Current Densities

Dong Cao, Zhirong Zhang, Yahui Cui, Runhao Zhang, more

Angewandte Chemie > 135 > 9 > n/a - n/a

article

Beyond a Linker: The Role of Photochemistry of Crosslinkers in the Direct Optical Patterning of Colloidal Nanocrystals

Shaoyong Lu, Zhong Fu, Fu Li, Kangkang Weng, more

Angewandte Chemie International Edition > 61 > 23 > n/a - n/a

Surface chemistry mediated direct optical patterning represents an emerging strategy for incorporating colloidal nanocrystals (NCs) in integrated optoelectronic platforms including displays and image sensors. However, the role of photochemistry of crosslinkers and other photoactive species in patterning remains elusive. Here we show the design of nitrene‐ and carbene‐based photocrosslinkers can strongly...

article

Beyond a Linker: The Role of Photochemistry of Crosslinkers in the Direct Optical Patterning of Colloidal Nanocrystals

Shaoyong Lu, Zhong Fu, Fu Li, Kangkang Weng, more

Angewandte Chemie > 134 > 23 > n/a - n/a

article

Sodium Metal Anodes with Self‐Correction Function Based on Fluorine‐Superdoped CNTs/Cellulose Nanofibrils Composite Paper

Jian Xiao, Nan Xiao, Kai Li, Lipeng Zhang, more

Advanced Functional Materials > 32 > 21 > n/a - n/a

Despite much efforts to stabilize sodium metal anodes for promoting their commercial applications, achieving a safe cycling process without intrinsic dendrite growth remains difficult owing to the unstable reaction interface and irregular sodium metal propagation. Herein, fluorine‐superdoped carbon nanotubes with a fluorine content of 14.38 at% are achieved using a new oxidation‐assisted plasma strategy,...

article

Cr‐Doped CoP Nanorod Arrays as High‐Performance Hydrogen Evolution Reaction Catalysts at High Current Density

Lipeng Zhang, Juntao Zhang, Jinjie Fang, Xin‐Yu Wang, more

Small > 17 > 28 > n/a - n/a

Developing highly efficient, low‐cost electrocatalysts with long‐time stability at high current density working conditions for hydrogen evolution reaction (HER) remains a great challenge for the large‐scale commercialization of hydrogen production from water electrolysis. Herein, the Cr‐doped CoP nanorod arrays on carbon cloth (Cr‐CoP‐NR/CC) is reported as high performance HER catalysts with overpotentials...

article

Phosphorus Regulated Cobalt Oxide@Nitrogen‐Doped Carbon Nanowires for Flexible Quasi‐Solid‐State Supercapacitors

Shude Liu, Ying Yin, Yang Shen, Kwan San Hui, more

Small > 16 > 4 > n/a - n/a

Battery‐type materials are promising candidates for achieving high specific capacity for supercapacitors. However, their slow reaction kinetics hinders the improvement in electrochemical performance. Herein, a hybrid structure of P‐doped Co₃O₄ (P‐Co₃O₄) ultrafine nanoparticles in situ encapsulated into P, N co‐doped carbon (P, N‐C) nanowires by a pyrolysis–oxidation–phosphorization of 1D metal–organic...

article

Enhancement of tanshinone production in Salvia miltiorrhiza hairy root cultures by metabolic engineering

Tao Wei, Yonghong Gao, Kejun Deng, Lipeng Zhang, more

Plant Methods > 2019 > 15 > 1 > 1-11

Background Tanshinones are diterpenoid compounds that are used to treat cardiovascular diseases. As current extraction methods for tanshinones are inefficient, there is a pressing need to improve the production of these bioactive compounds to meet increasing demand. Results Overexpression of SmMDS (2-c-methyl-d-erythritol 2,4-cyclodiphosphate synthase, a tanshinone biosynthesis gene) in transgenic...

article

Guiding Principles for Designing Highly Efficient Metal‐Free Carbon Catalysts

Lipeng Zhang, Chun‐Yu Lin, Detao Zhang, Lele Gong, more

Advanced Materials > 31 > 13 > n/a - n/a

Carbon nanomaterials are promising metal‐free catalysts for energy conversion and storage, but the catalysts are usually developed via traditional trial‐and‐error methods. To rationally design and accelerate the search for the highly efficient catalysts, it is necessary to establish design principles for the carbon‐based catalysts. Here, theoretical analysis and material design of metal‐free carbon...

article

Synthesis of pentaerythritol stearate ester‐based zinc alkoxide and its synergistic effect with calcium stearate and zinc stearate on PVC thermal stability

Hao Liu, Degang Li, Ruijiao Li, Hongqi Sun, more

Journal of Vinyl and Additive Technology > 24 > 4 > 314 - 323

A novel pentaerythritol stearate ester‐based zinc alkoxide (PSE‐Zn) was synthesized through a two‐step method. Zinc ethoxide was first prepared from zinc acetate and ethanol, and then with ethanol as the solvent, the obtained zinc ethoxide ester was heated together with pentaerythritol stearate to produce PSE‐Zn. PSE‐Zn could be used as a promising poly(vinyl chloride) (PVC) thermal stabilizer. Conductivity...

article

Synthesis and properties of epoxy soybean oil-based polyurethanes modified by 3,13-dimethyhydroxysilyl double-decker phenylsilsesquioxane

Yue Wen, Pingping Jiang, Agus Haryono, Pingbo Zhang, more

Chemical Papers > 2019 > 73 > 3 > 747-756

Nowadays, environmental problems such as petroleum resources exhaustion, pollution and global warming are in ceaseless aggravation. Consequently, vegetable oil becomes one of the most important resources due to its cheapness, easily availability and environmental regeneration. In this study, a series of sustainable polyurethanes based on epoxy soybean oil modified by different contents of 3,13-dimethyhydroxysilyl...

article

Seismic behaviour of a traditional timber structure: shaking table tests, energy dissipation mechanism and damage assessment model

Qifang Xie, Long Wang, Lipeng Zhang, Weibing Hu, more

Bulletin of Earthquake Engineering > 2019 > 17 > 3 > 1689-1714

Traditional timber structures are well known as an efficient aseismic structure. In order to clearly understand the reasons for the good performance of the Chinese traditional timber structures during earthquakes, the energy dissipation mechanism of a Chinese traditional timber structure was studied by shaking table tests in this paper. A model at a 1:6 geometric scale was manufactured with the same...

article

Enhanced lithium storage capability enabled by metal nickel dotted NiO–graphene composites

Jin Chen, Zhao Wang, Jiechen Mu, Bing Ai, more

Journal of Materials Science > 2019 > 54 > 2 > 1475-1487

The electrochemical performance of Li-ion batteries, which is limited by large volume changes and low intrinsic conductivity, can be improved by using a NiO–graphene composite as an electrode. Herein, we constructed metallic Ni-dotted NiO flakes on folded graphene and evaluated the electrochemical performance of the resulting composites. Introduction of graphene produced an excellent 2D structure...

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INFONA - science communication portal

Search results for: Lipeng Zhang

Rational Regulation of the Defect Density in Platinum Nanocrystals for Highly Efficient Hydrogen Evolution Reaction

Intrinsic Descriptor Guided Noble Metal Cathode Design for Li‐CO₂ Battery

Direct Separation of UO₂²⁺ by Coordination Sieve Effect via Spherical Coordination Traps

The Influences of DMF Content in Composite Polymer Electrolytes on Li⁺‐Conductivity and Interfacial Stability with Li‐Metal

Initiating Fluorine Chemistry in Polycyclic Aromatic Hydrocarbon‐Derived Carbon for New Cluster‐Mode Na Storage with Superhigh Capacity

Frontispiece: One‐Step Approach for Constructing High‐Density Single‐Atom Catalysts toward Overall Water Splitting at Industrial Current Densities

One‐Step Approach for Constructing High‐Density Single‐Atom Catalysts toward Overall Water Splitting at Industrial Current Densities

Frontispiz: One‐Step Approach for Constructing High‐Density Single‐Atom Catalysts toward Overall Water Splitting at Industrial Current Densities

One‐Step Approach for Constructing High‐Density Single‐Atom Catalysts toward Overall Water Splitting at Industrial Current Densities

Beyond a Linker: The Role of Photochemistry of Crosslinkers in the Direct Optical Patterning of Colloidal Nanocrystals

Beyond a Linker: The Role of Photochemistry of Crosslinkers in the Direct Optical Patterning of Colloidal Nanocrystals

Sodium Metal Anodes with Self‐Correction Function Based on Fluorine‐Superdoped CNTs/Cellulose Nanofibrils Composite Paper

Cr‐Doped CoP Nanorod Arrays as High‐Performance Hydrogen Evolution Reaction Catalysts at High Current Density

Phosphorus Regulated Cobalt Oxide@Nitrogen‐Doped Carbon Nanowires for Flexible Quasi‐Solid‐State Supercapacitors

Enhancement of tanshinone production in Salvia miltiorrhiza hairy root cultures by metabolic engineering

Guiding Principles for Designing Highly Efficient Metal‐Free Carbon Catalysts

Synthesis of pentaerythritol stearate ester‐based zinc alkoxide and its synergistic effect with calcium stearate and zinc stearate on PVC thermal stability

Synthesis and properties of epoxy soybean oil-based polyurethanes modified by 3,13-dimethyhydroxysilyl double-decker phenylsilsesquioxane

Seismic behaviour of a traditional timber structure: shaking table tests, energy dissipation mechanism and damage assessment model

Enhanced lithium storage capability enabled by metal nickel dotted NiO–graphene composites

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