Understanding Synthesis–Structure–Performance Correlations of Nanoarchitectured Activated Carbons for Electrochemical Applications and Carbon Capture DOI
Songtao Zhang, Mingbo Zheng,

Yijian Tang

et al.

Advanced Functional Materials, Journal Year: 2022, Volume and Issue: 32(40)

Published: Aug. 7, 2022

Abstract Activated carbons are one of the most important classes high‐surface‐area porous materials. Owing to their unique structure, low price, and large‐scale production technology, these have been traditionally used as sorbents for eliminating contamination. In past decade, many innovations seen in synthesis, applications, theoretical experimental methods. Herein, a comprehensive review up‐to‐date progress activated is presented from viewpoint synthetic chemistry materials science. First, critical textural properties discussed, with special emphasis on texture, heteroatom doping, surface functional groups, partial graphitization. Next, advanced strategies summarized. Special attention given reaction mechanism between activating agents carbon sources, well design controlled forms morphology. Then, applicability various emerging fields covered, including supercapacitors, capacitive deionization, batteries, electrocatalysis, capture. particular, this highlights potential synthesis–structure–property correlations Finally, we present future challenges outlook success energy environmental

Language: Английский

Electromagnetic microwave absorption theory and recent achievements in microwave absorbers DOI
Xiaojun Zeng, Xiaoyu Cheng, Ronghai Yu

et al.

Carbon, Journal Year: 2020, Volume and Issue: 168, P. 606 - 623

Published: July 17, 2020

Language: Английский

Citations

723

Defect Chemistry in Heterogeneous Catalysis: Recognition, Understanding, and Utilization DOI
Chao Xie, Dafeng Yan, Hao Li

et al.

ACS Catalysis, Journal Year: 2020, Volume and Issue: 10(19), P. 11082 - 11098

Published: Sept. 3, 2020

Heterogeneous catalysis plays an important role in modern industry. Exploring catalysts with high efficiency, low-cost, and stability is issue for the research of heterogeneous catalysis. In recent years, researchers have prepared a variety defective found that defects effect on their catalytic activity. However, relationship between activity remains to be clarified. this Review, three aspects including recognition, understanding, utilization defect chemistry been proposed. Based progress, work mainly introduces fundamental concept, types, characterization catalysts, significant effects properties, controllable construction methods efficient catalyst synthesis. Finally, conclusion outlook are presented. It hoped can provide guidance synthesis mechanism catalysts.

Language: Английский

Citations

465

Honeycomb Carbon Nanofibers: A Superhydrophilic O2‐Entrapping Electrocatalyst Enables Ultrahigh Mass Activity for the Two‐Electron Oxygen Reduction Reaction DOI
Kai Dong, Jie Liang, Yuanyuan Wang

et al.

Angewandte Chemie International Edition, Journal Year: 2021, Volume and Issue: 60(19), P. 10583 - 10587

Published: Feb. 25, 2021

Abstract Electrocatalytic two‐electron oxygen reduction has emerged as a promising alternative to the energy‐ and waste‐intensive anthraquinone process for distributed H 2 O production. This process, however, suffers from strong competition four‐electron pathway leading low selectivity. Herein, we report using superhydrophilic ‐entrapping electrocatalyst enable superb electrocatalysis. The honeycomb carbon nanofibers (HCNFs) are robust capable of achieving high selectivity 97.3 %, much higher than that its solid nanofiber counterpart. Impressively, this catalyst achieves an ultrahigh mass activity up 220 A g −1 , surpassing all other catalysts reaction. porous skeleton with rich oxygenated functional groups facilitates efficient electron transfer better wetting by electrolyte, interconnected cavities allow more effective entrapping gas bubbles. catalytic mechanism is further revealed in situ Raman analysis density theory calculations.

Language: Английский

Citations

284

Rational Design of Single‐Atom Site Electrocatalysts: From Theoretical Understandings to Practical Applications DOI
Yao Wang, Dingsheng Wang, Yadong Li

et al.

Advanced Materials, Journal Year: 2021, Volume and Issue: 33(34)

Published: July 8, 2021

Atomically dispersed metal-based electrocatalysts have attracted increasing attention due to their nearly 100% atomic utilization and excellent catalytic performance. However, current fundamental comprehension summaries reveal the underlying relationship between single-atom site (SACs) corresponding application are rarely reported. Herein, understandings intrinsic mechanisms SACs electrocatalytic applications systemically summarized. Different preparation strategies presented synthetic with engineering well-defined on basis of theoretical principle (size effect, metal-support interactions, electronic structure coordination environment effect). Then, an overview is presented, including oxygen reduction reaction, hydrogen evolution oxidation small organic molecules, carbon dioxide nitrogen reaction. The structure-performance reactions also discussed in depth expound enhancement mechanisms. Finally, a summary provided perspective supplied demonstrate challenges opportunities for rational designing, synthesizing, modulating advanced toward reactions.

Language: Английский

Citations

276

Defect and Doping Co-Engineered Non-Metal Nanocarbon ORR Electrocatalyst DOI Creative Commons
Jian Zhang, Jingjing Zhang, Feng He

et al.

Nano-Micro Letters, Journal Year: 2021, Volume and Issue: 13(1)

Published: Feb. 6, 2021

Abstract Exploring low-cost and earth-abundant oxygen reduction reaction (ORR) electrocatalyst is essential for fuel cells metal–air batteries. Among them, non-metal nanocarbon with multiple advantages of low cost, abundance, high conductivity, good durability, competitive activity has attracted intense interest in recent years. The enhanced ORR activities the nanocarbons are normally thought to originate from heteroatom (e.g., N, B, P, or S) doping various induced defects. However, practice, carbon-based materials usually contain both dopants In this regard, terms co-engineering defect inducing, we present an overview advances developing electrocatalysts ORR. characteristics, performance, related mechanism these functionalized by doping, particular their synergistic promotion effect emphatically analyzed discussed. Finally, current issues perspectives engineering proposed. This review will be beneficial rational design manufacturing highly efficient electrocatalysis.

Language: Английский

Citations

265

Single Carbon Vacancy Traps Atomic Platinum for Hydrogen Evolution Catalysis DOI
Qin Yang, Hanxuan Liu, Pei Yuan

et al.

Journal of the American Chemical Society, Journal Year: 2022, Volume and Issue: 144(5), P. 2171 - 2178

Published: Jan. 7, 2022

The coordinated configuration of atomic platinum (Pt) has always been identified as an active site with high intrinsic activity for hydrogen evolution reaction (HER). Herein, we purposely synthesize single vacancies in a carbon matrix (defective graphene) that can trap Pt to form the Pt-C3 configuration, which gives exceptionally reactivity HER both acidic and alkaline solutions. is valued turnover frequency (TOF) 26.41 s-1 mass 26.05 A g-1 at 100 mV, respectively, are nearly 18 times higher than those commercial 20 wt % Pt/C. It revealed optimal coordination stronger electron-capture ability lower Gibbs free energy difference (ΔG), resulting promoting reduction adsorbed H+ acceleration H2 desorption, thus exhibiting extraordinary activity. This work provides new insight on unique dispersive defective C superior performance.

Language: Английский

Citations

248

Regulative Electronic States around Ruthenium/Ruthenium Disulphide Heterointerfaces for Efficient Water Splitting in Acidic Media DOI
Jiawei Zhu, Yao Guo, Fang Liu

et al.

Angewandte Chemie International Edition, Journal Year: 2021, Volume and Issue: 60(22), P. 12328 - 12334

Published: Feb. 26, 2021

Abstract Theoretical calculations unveil the charge redistribution over abundant interfaces and enhanced electronic states of Ru/RuS 2 heterostructure. The resulting surface electron‐deficient Ru sites display optimized adsorption behavior toward diverse reaction intermediates, thereby reducing thermodynamic energy barriers. Experimentally, for first time laminar heterostructure is rationally engineered by virtue synchronous reduction sulfurization under eutectic salt system. Impressively, it exhibits extremely high catalytic activity both OER (201 mV @ 10 mA cm −2 ) HER (45 in acidic media due to favorable kinetics excellent specific activity, consequently leading a terrific performance overall water splitting devices (1.501 V ). in‐depth insight into internal origin interfacial effect could offer precise guidance rational establishment hybrid interfaces.

Language: Английский

Citations

229

Defect Engineering for Expediting Li–S Chemistry: Strategies, Mechanisms, and Perspectives DOI

Zixiong Shi,

Matthew Li, Jingyu Sun

et al.

Advanced Energy Materials, Journal Year: 2021, Volume and Issue: 11(23)

Published: May 7, 2021

Abstract Lithium–sulfur (Li–S) batteries have stimulated a burgeoning scientific and industrial interest owing to high energy density low materials costs. The favorable reaction kinetics of sulfur species is key prerequisite for pursuing their commercialization. Recent years witnessed wealth investigations in terms boosting redox via rationalizing mediators. Defect engineering, which allows the effective exposure active sites optimization electronic structure, has emerged expeditiously as an essential strategy enhance polysulfide modulation, hence expedite Li–S chemistry. Nevertheless, comprehensive overview defect engineering realm still lacking. This review emphasizes recent advances rational design modulation strategies different types defective Their unique morphological configuration, superb electrochemical activity, underlying catalytic mechanism are comprehensively summarized, aiming deepen understanding defect‐mediated Moreover, situ evolution mediators discussed identify true under aprotic conditions. Opportunities outlook this fast‐developing frontier that may lead practical implementations proposed.

Language: Английский

Citations

196

Atomically Dispersed Transition Metal-Nitrogen-Carbon Bifunctional Oxygen Electrocatalysts for Zinc-Air Batteries: Recent Advances and Future Perspectives DOI Creative Commons

Fang Dong,

Mingjie Wu, Zhangsen Chen

et al.

Nano-Micro Letters, Journal Year: 2021, Volume and Issue: 14(1)

Published: Dec. 16, 2021

Abstract Rechargeable zinc-air batteries (ZABs) are currently receiving extensive attention because of their extremely high theoretical specific energy density, low manufacturing costs, and environmental friendliness. Exploring bifunctional catalysts with activity stability to overcome sluggish kinetics oxygen reduction reaction evolution is critical for the development rechargeable ZABs. Atomically dispersed metal-nitrogen-carbon (M-N-C) possessing prominent advantages metal atom utilization electrocatalytic promising candidates promote electrocatalysis. In this work, general principles designing atomically M-N-C reviewed. Then, strategies aiming at enhancing catalytic presented. Finally, challenges perspectives ZABs outlined. It expected that review will provide insights into targeted optimization in

Language: Английский

Citations

194

Recent progress on the long‐term stability of hydrogen evolution reaction electrocatalysts DOI Creative Commons
Wenfang Zhai, Yuanyuan Ma, Dong Chen

et al.

InfoMat, Journal Year: 2022, Volume and Issue: 4(9)

Published: Aug. 23, 2022

Abstract Developing new methodologies to produce clean and renewable energy resources is pivotal for carbon‐neutral initiatives. Hydrogen (H 2 ) considered as an ideal resource due its nontoxic, pollution‐free, high utilization rate, calorific combustion value. Electrolysis of water driven by the electricity generated from sources (e.g., solar energy, wind energy) hydrogen attracts great efforts production with purity. Recently, breakthrough catalyst activity limit evolution reaction (HER) catalysts has received extensive attention. Comparatively, fewer reviews have focused on long‐term stability HER catalysts, which indeed decisive large‐scale electrolytic industrialization. Therefore, a systematic summary concentrated durability electrocatalysts would provide fundamental understanding electrocatalytic performance practical applications offer opportunities rational design highly performed electrocatalysts. This review summarizes research progress toward precious metals, transition metal‐free in past few years. It discusses challenges future perspectives. We anticipate that it valuable basis designing robust image

Language: Английский

Citations

193