Electron-withdrawing functional ligand promotes CO2 reduction catalysis in single atom catalyst

Ren, Xinyi; Liu, Song; Li, Huicong; Ding, Jie; Liu, Linghui; Kuang, Zhichong; Li, Ling; Yang, Hongbin; Bai, Fu‐Quan; Huang, Yanqiang; Zhang, Tao; Liu, Bin

doi:10.1007/s11426-020-9847-9

Cited by 55 publications

(45 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Liu's group has made great efforts to minimize the gap between measured catalytic activity and theoretical result. [ 150–153 ] For example, Gao et al. performed kinetic analysis to experimentally probe the rate‐determining step in ORR and found that the reaction rate of H + in the rate‐determining step was −0.05 to −0.07, very close to 0.…”

Section: Discussionmentioning

confidence: 99%

“…Liu's group has made great efforts to minimize the gap between measured catalytic activity and theoretical result. [150][151][152][153] For example, Gao et al performed kinetic analysis to experimentally probe the rate-determining step in ORR and found that the reaction rate of H + in the rate-determining step was −0.05 to −0.07, very close to 0. [94] Therefore, it was suggested that H + was not involved in the rate-limiting step in ORR and it was deduced that the ratedetermining step of producing H 2 O 2 over Co-NC is as follows:…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Coordination Engineering of Single‐Atom Catalysts for the Oxygen Reduction Reaction: A Review

Zhang

Yang

Liu

2020

Advanced Energy Materials

Self Cite

274

185

View full text Add to dashboard Cite

Future renewable energy supplies and a sustainable environment rely on many important catalytic processes. Single‐atom catalysts (SACs) are attractive because of their maximum atom utilization efficiency, tunable electronic structures, and outstanding catalytic performance. Of particular note, transition‐metal SACs exhibit excellent catalytic activity and selectivity for the oxygen reduction reaction (ORR)—an important half reaction in fuel cells and metal–air batteries as well as for portable hydrogen peroxide (H2O2) production. Although considerable efforts have been made on the synthesis of SACs for ORR, the regulation of the coordination environments of SACs and thus the electronic structures still pose a big challenge. In this review, strategies for manipulating the coordination environments of SACs are classified into three categories, including regulation of the center metal atoms, manipulation of the surrounding environment connecting to the center metal atom, and modification of the geometric configuration of the support. Finally, some issues regarding the future development of SACs for ORR are raised and possible solutions are proposed.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Coordination Engineering of Single‐Atom Catalysts for the Oxygen Reduction Reaction: A Review

Zhang

Yang

Liu

2020

Advanced Energy Materials

Self Cite

274

185

View full text Add to dashboard Cite

show abstract

“…According to the aforementioned research, a superior performance of FeN 5 sites over FeN 4 sites was found in reducing CO 2 to CO. Following the reaction mechanism shown in Figure 18 and the theoretical free energy calculations carried out by the authors [110], it can be observed that the FeN 5 site has a relatively weak binding force with the intermediate *CO (0.54 eV), which facilitates desorption of CO from the active site and therefore has a higher selectivity towards CO compared to the FeN 4 site, which has a desorption energy of 1.35 eV.…”

Section: Smas-n-graphenementioning

confidence: 86%

“…Due to the above characteristics, the electrochemical performance was superior with a maximum FE towards CO of 92.1% at a low over potential of 0.56V and a current density (Jco) of 26 mA cm −2 compared to other catalysts used such as a nickel foil (Ni 0 ) and nickel phthalocyanine (NiPc) with FE (CO) between 40-71%. On the other hand, Zhang and co-workers [110] used melanin structures to dope the graphene material, obtaining FeN 5 -type sites atomically dispersed on the matrix. The synthesis process consisted of the simultaneous doping of melanin and Hemin (ferric chloride hemin) as a resource of iron (Fe 3+ ) and a pyrolysis process at 800 • C. During this process, the doped nitrogen forms an additional axial ligand coordinated with FeN 4 to form a new catalytic site of FeN 5 anchored in graphene (Figure 17b).…”

Section: Smas-n-graphenementioning

confidence: 99%

From CO2 to Value-Added Products: A Review about Carbon-Based Materials for Electro-Chemical CO2 Conversion

et al. 2021

View full text Add to dashboard Cite

The global warming and the dangerous climate change arising from the massive emission of CO2 from the burning of fossil fuels have motivated the search for alternative clean and sustainable energy sources. However, the industrial development and population necessities make the decoupling of economic growth from fossil fuels unimaginable and, consequently, the capture and conversion of CO2 to fuels seems to be, nowadays, one of the most promising and attractive solutions in a world with high energy demand. In this respect, the electrochemical CO2 conversion using renewable electricity provides a promising solution. However, faradaic efficiency of common electro-catalysts is low, and therefore, the design of highly selective, energy-efficient, and cost-effective electrocatalysts is critical. Carbon-based materials present some advantages such as relatively low cost and renewability, excellent electrical conductivity, and tunable textural and chemical surface, which show them as competitive materials for the electro-reduction of CO2. In this review, an overview of the recent progress of carbon-based electro-catalysts in the conversion of CO2 to valuable products is presented, focusing on the role of the different carbon properties, which provides a useful understanding for the materials design progress in this field. Development opportunities and challenges in the field are also summarized.

show abstract

“…Along with the development of nano‐sized electrocatalyst based selective biosensors, single‐atom catalysts (SACs), a new member in the field of nanocatalysis, have sparked tremendous interests attributed from their remarkable catalytic activity, maximum atom utilization, and unsaturated coordination environment [21] . SACs offer unique opportunities to rationally design new materials with unprecedented activity and selectivity, and thus has been greatly used in electrocatalytic oxygen reduction, [22] hydrogen evolution, [23] CO 2 reduction, [24] CO oxidation [25] and so forth [26] . Recently, using nickel single‐atom based electrocatalyst (Figure 3A), Zhou et al.…”

Section: Selective Detection By Using Electrocatalysts To Modulate the Interfacial Electron Transfermentioning

confidence: 99%

Selectively Probing Neurochemicals in Living Animals with Electrochemical Systems

Jia

Jiang

2021

ChemNanoMat

View full text Add to dashboard Cite

Neurochemicals are essential molecules presented in the central nervous system that are primarily involved in neural activity and signaling. Neurochemical abnormalities resulted from genetic or environmental changes can lead to several behavioral and neurological disorders, including Alzheimer's and Parkinson's diseases. It is therefore imperative to employ detection systems of the optimal selectivity and spatio‐temporal resolution to ascertain the specific molecular basis particular to the pathological process. Electrochemical systems featuring excellent temporal‐spatial resolution and designable electrode interface are arguably the most versatile and widely used approaches for sensing of neurochemicals in living brain environment. Nevertheless, there are still many challenges that must be addressed to enable highly selective, sensitive, and stable in vivo electrochemical sensors and facilitate their development for emerging applications ranging from early diagnosis of brain diseases to designing potential curative treatments. Here, we provide a brief overview of the application of electrochemical sensors and biosensors in the analysis of neurochemicals in living animals. In particular, we highlight recent advances in modulating the physicochemical properties of electrode that can lead to in vivo sensors with exceptional selectivity. In addition, future trends of highly selective in vivo electrochemical systems are prospected.

show abstract

Electron-withdrawing functional ligand promotes CO2 reduction catalysis in single atom catalyst

Cited by 55 publications

References 45 publications

Coordination Engineering of Single‐Atom Catalysts for the Oxygen Reduction Reaction: A Review

Coordination Engineering of Single‐Atom Catalysts for the Oxygen Reduction Reaction: A Review

From CO2 to Value-Added Products: A Review about Carbon-Based Materials for Electro-Chemical CO2 Conversion

Selectively Probing Neurochemicals in Living Animals with Electrochemical Systems

Contact Info

Product

Resources

About