Study on the Defect Structure of Carbon‐Doped ZnO Materials

Ding, Yuchuan; Niu, Liyan; Chen, Yong; Wang, MaoHua

doi:10.1002/crat.202300015

Cited by 7 publications

(4 citation statements)

References 29 publications

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“…In the III zone of the HoQ, the number of points obtained for the current values was noted, and in the VII zone of the HoQ, the number of points obtained for the modification values was noted. According to the sixth stage, the quality of the attributes of the product was estimated considering the weights of the attributes ( 14): (14) where Q c is the quality of the current product attribute value, Q m is the quality of the modification product attribute value, and 1, . .…”

Section: Resultsmentioning

confidence: 99%

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Predicting Quality of Modified Product Attributes to Achieve Customer Satisfaction

Pacana,

Siwiec

2024

Designs

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In the era of the competitive environment, the improvement in current products is ensured through activities aimed at increasing a product’s quality level and, consequently, reducing the amount of waste. The dynamically changing production environment and sudden changes in customer expectations force us to take precise and well-thought-out development steps. Furthermore, it is important to anticipate favourable product changes to prepare for market changes over time. This is still an open problem. The aim of this study was to develop a method to predict the quality of potential product prototypes resulting from the proposed modifications of the product features. This methodology takes into account current customer expectations. The method was created based on the principles of creating Quality Function Deployment (QFD) in the context of taking into account current and future customer expectations regarding product features. This is a new approach to analysing product quality within the principles of the traditional QFD method. The originality of the study is the technique used in the method to estimate the expected values of product features and their importance (weights), taking into account current customer expectations. Its originality is also manifested in drawing conclusions supporting the decision-making process of product improvement, because it involves ensuring the pro-quality modification of selected features of current products in the order that is most advantageous from the customer’s point of view. The use of the proposed method allows for the analysis of the impact of modifying the current value of a product feature. The method is illustrated with an example of a vacuum cleaner for home use. However, the proposed method can be applied to the design of any product to predict products that will meet customer expectations.

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Section: Resultsmentioning

confidence: 99%

“…After reviewing the literature, it was concluded that the House of Quality (HoQ) [12] i.e., Quality Function Deployment (QFD) [13], is the most popular and most-used method to design a satisfactory product [14][15][16][17][18]. This method is a correlation matrix.…”

Section: Introductionmentioning

confidence: 99%

Predicting Quality of Modified Product Attributes to Achieve Customer Satisfaction

Pacana,

Siwiec

2024

Designs

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“…Potential causes of non-compliance with materials or industrial products are those that are likely to cause non-compliance, but the degree of their impact is usually unknown or clearly defined [ 13 , 48 , 49 ].…”

Section: Procedures To Identify Critical Causes Of Materials Incompat...mentioning

confidence: 99%

“…Additionally, the stabilisation of the quality of materials and products is supported by qualitative tests, which should be performed according to the continuous improvement of the cycle [ 6 , 7 , 10 , 11 ]. It refers to continuously identifying all defects and then taking adequate improvement actions (i.e., eliminating or reducing these defects in the future) [ 8 , 12 , 13 , 14 ]. In this area, especially popular in industry practise is, e.g., destructive testing (DT) [ 15 ] or non-destructive testing (NDT) [ 16 ].…”

Section: Introductionmentioning

confidence: 99%

A Novelty Procedure to Identify Critical Causes of Materials Incompatibility

Siwiec

Pacana

2023

Materials

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Ensuring the expected quality of materials is still a challenge, mainly in order to precisely plan improvement actions that allow for stabilization of the production process. Therefore, the purpose of this research was to develop a novel procedure to identify critical causes of material incompatibility—the causes that have the largest negative impact on material deterioration, and the natural environment. The main originality of this procedure is developing a way to coherent analyse the mutual influence of the many causes of incompatibility of any material, after which the critical causes are identified and a ranking of improvement actions to eliminate these causes is created. A novelty is also developed in the algorithm supporting this procedure, which can be realized in three different ways to solve this problem, i.e.; by considering the impact of material incompatibility on: (i) the deterioration of the material quality; (ii) the deterioration of the natural environment; and (iii) simultaneously the deterioration of the quality of the material and the natural environment. The effectiveness of this procedure was confirmed after tests on 410 alloy, from which a mechanical seal was made. However, this procedure can be useful for any material or industrial product.

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N‐Carbon‐Doped Binary Nanophase of Metal Oxide/Metal–Organic Framework for Extremely Sensitive and Selective Gas Response

Min,

Kwon,

Lee

et al. 2023

Advanced Materials

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Metal–organic frameworks (MOFs), which are highly ordered structures exhibiting sub‐nanometer porosity, possess significant potential for diverse gas applications. However, their inherent insulative properties limit their utility in electrochemical gas sensing. This investigation successfully modifies the electrical conductivity of zeolitic imidazolte framework‐8 (ZIF‐8) employing a straightforward surface oxidation methodology. A ZIF‐8 polycrystalline layer is applied on a wafer‐scale oxide substrate and subjects to thermal annealing at 300 °C under ambient air conditions, resulting in nanoscale oxide layers while preserving the fundamental properties of the ZIF‐8. Subsequent exposure to NO2 instigates the evolution of an electrically interconnected structure with the formation of electron‐rich dopants derived from the decomposition of nitrogen‐rich organic linkers. The N‐carbon‐hybridized ZnO/ZIF‐8 device demonstrates remarkable sensitivity (≈130 ppm−1) and extreme selectivity in NO2 gas detection with a lower detection limit of 0.63 ppb under 150 °C operating temperature, surpassing the performance of existing sensing materials. The exceptional performances result from the Debye length scale dimensionality of ZnO and the high affinity of ZIF‐8 to NO2. The methodology for manipulating MOF conductivity through surface oxidation holds the potential to accelerate the development of MOF‐hybridized conductive channels for a variety of electrical applications.

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Study on the Defect Structure of Carbon‐Doped ZnO Materials

Cited by 7 publications

References 29 publications

Predicting Quality of Modified Product Attributes to Achieve Customer Satisfaction

Predicting Quality of Modified Product Attributes to Achieve Customer Satisfaction

A Novelty Procedure to Identify Critical Causes of Materials Incompatibility

N‐Carbon‐Doped Binary Nanophase of Metal Oxide/Metal–Organic Framework for Extremely Sensitive and Selective Gas Response

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