QNN/autotrain-data-automatic
收藏数据集概述
数据集描述
该数据集由AutoTrain自动处理，用于项目“automatic”。
语言
数据集的语言为英语（BCP-47代码：en）。
数据集结构
数据实例
数据集中的一个样本如下所示：
json [ { "tokens": [ "Pd", "has", "been", "regarded", "as", "one", "of", "the", "alternatives", "to", "Pt", "as", "a", "promising", "hydrogen", "evolution", "reaction", "(HER)", "catalyst.", "Strategies", "including", "Pd-metal", "alloys", "(Pd-M)", "and", "Pd", "hydrides", "(PdH<sub><i>x</i></sub>)", "have", "been", "proposed", "to", "boost", "HER", "performances.", "However,", "the", "stability", "issues,", "e.g.,", "the", "dissolution", "in", "Pd-M", "and", "the", "hydrogen", "releasing", "in", "PdH<sub><i>x</i></sub>,", "restrict", "the", "industrial", "application", "of", "Pd-based", "HER", "catalysts.", "We", "here", "design", "and", "synthesize", "a", "stable", "Pd-Cu", "hydride", "(", "PdCu<sub>0.2</sub>H<sub>0.43</sub>", ")", "catalyst,", "combining", "the", "advantages", "of", "both", "Pd-M", "and", "PdH<sub><i>x</i></sub>", "structures", "and", "improving", "the", "HER", "durability", "simultaneously.", "The", "hydrogen", "intercalation", "is", "realized", "under", "atmospheric", "pressure", "(1.0", "atm)", "following", "our", "synthetic", "approach", "that", "imparts", "high", "stability", "to", "the", "Pd-Cu", "hydride", "structure.", "The", "obtained", "PdCu<sub>0.2</sub>H<sub>0.43</sub>", "catalyst", "exhibits", "a", "small", "overpotential", "of", "28", "mV", "at", "10", "mA/cm<sup>2</sup>", ",", "a", "low", "Tafel", "slope", "of", "23", "mV/dec", ",", "and", "excellent", "HER", "durability", "due", "to", "its", "appropriate", "hydrogen", "adsorption", "free", "energy", "and", "alleviated", "metal", "dissolution", "rate.", "</p>", "<p>" ], "tags": [ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 2, 2, 2, 2, 4, 2, 5, 5, 2, 5, 5, 2, 2, 2, 4, 2, 2, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2 ] }, { "tokens": [ "A", "critical", "challenge", "in", "energy", "research", "is", "the", "development", "of", "earth", "abundant", "and", "cost-effective", "materials", "that", "catalyze", "the", "electrochemical", "splitting", "of", "water", "into", "hydrogen", "and", "oxygen", "at", "high", "rates", "and", "low", "overpotentials.", "Key", "to", "addressing", "this", "issue", "lies", "not", "only", "in", "the", "synthesis", "of", "new", "materials,", "but", "also", "in", "the", "elucidation", "of", "their", "active", "sites,", "their", "structure", "under", "operating", "conditions", "and", "ultimately,", "extraction", "of", "the", "structure-function", "relationships", "used", "to", "spearhead", "the", "next", "generation", "of", "catalyst", "development.", "In", "this", "work,", "we", "present", "a", "complete", "cycle", "of", "synthesis,", "operando", "characterization,", "and", "redesign", "of", "an", "amorphous", "cobalt", "phosphide", "(", "CoP", "<sub><i>x</i></sub>", ")", "bifunctional", "catalyst.", "The", "research", "was", "driven", "by", "integrated", "electrochemical", "analysis,", "Raman", "spectroscopy", "and", "gravimetric", "measurements", "utilizing", "a", "novel", "quartz", "crystal", "microbalance", "spectroelectrochemical", "cell", "to", "uncover", "the", "catalytically", "active", "species", "of", "amorphous", "CoP", "<sub><i>x</i></sub>", "and", "subsequently", "modify", "the", "material", "to", "enhance", "the", "activity", "of", "the", "elucidated", "catalytic", "phases.", "Illustrating", "the", "power", "of", "our", "approach,", "the", "second", "generation", "cobalt-iron", "phosphide", "(", "CoFeP<sub>x</sub>", ")", "catalyst,", "developed", "through", "an", "iteration", "of", "the", "operando", "measurement", "directed", "optimization", "cycle,", "is", "superior", "in", "both", "hydrogen", "and", "oxygen", "evolution", "reactivity", "over", "the", "previous", "material", "and", "is", "capable", "of", "overall", "water", "electrolysis", "at", "a", "current", "density", "of", "10", "mA", "cm<sup>-2</sup>", "with", "1.5", "V", "applied", "bias", "in", "1", "M", "KOH", "electrolyte", "solution.", "</p>", "<p>" ], "tags": [ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 4, 4, 2, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2 ] } ]
数据集字段
数据集包含以下字段（也称为“特征”）：
json { "tokens": "Sequence(feature=Value(dtype=string, id=None), length=-1, id=None)", "tags": "Sequence(feature=ClassLabel(names=[CATALYST, CO-CATALYST, O, Other, PROPERTY_NAME, PROPERTY_VALUE], id=None), length=-1, id=None)" }
数据集分割
数据集分为训练集和验证集。分割大小如下：
| 分割名称 | 样本数量 |
|---|---|
| train | 168 |
| valid | 42 |
